./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8 --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 8bc7ea9594894bce31579a47be3b0c06f18caebb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8 --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 8bc7ea9594894bce31579a47be3b0c06f18caebb .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:33:48,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:33:48,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:33:48,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:33:48,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:33:48,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:33:48,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:33:48,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:33:48,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:33:48,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:33:48,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:33:48,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:33:48,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:33:48,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:33:48,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:33:48,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:33:48,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:33:48,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:33:48,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:33:48,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:33:48,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:33:48,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:33:48,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:33:48,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:33:48,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:33:48,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:33:48,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:33:48,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:33:48,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:33:48,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:33:48,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:33:48,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:33:48,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:33:48,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:33:48,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:33:48,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:33:48,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:33:48,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:33:48,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:33:48,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:33:48,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:33:48,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:33:48,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:33:48,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:33:48,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:33:48,818 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:33:48,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:33:48,819 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:33:48,819 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:33:48,820 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:33:48,827 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:33:48,828 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:33:48,829 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:33:48,830 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:33:48,830 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:33:48,830 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:33:48,830 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:33:48,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:33:48,832 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:33:48,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:33:48,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:33:48,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:33:48,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:33:48,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:33:48,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:33:48,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:33:48,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:33:48,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:33:48,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:33:48,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:33:48,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:33:48,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:33:48,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:33:48,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:33:48,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:33:48,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:33:48,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:33:48,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:33:48,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:33:48,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:33:48,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:33:48,841 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_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bc7ea9594894bce31579a47be3b0c06f18caebb [2021-10-13 07:33:49,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:33:49,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:33:49,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:33:49,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:33:49,190 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:33:49,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-13 07:33:49,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/13268f77c/a16637eeb4544b26876184d2df7a341d/FLAG64eea95c9 [2021-10-13 07:33:49,813 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:33:49,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-13 07:33:49,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/13268f77c/a16637eeb4544b26876184d2df7a341d/FLAG64eea95c9 [2021-10-13 07:33:50,160 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/13268f77c/a16637eeb4544b26876184d2df7a341d [2021-10-13 07:33:50,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:33:50,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:33:50,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:33:50,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:33:50,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:33:50,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66703b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50, skipping insertion in model container [2021-10-13 07:33:50,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:33:50,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:33:50,408 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_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-13 07:33:50,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:33:50,452 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:33:50,472 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_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-13 07:33:50,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:33:50,535 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:33:50,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50 WrapperNode [2021-10-13 07:33:50,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:33:50,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:33:50,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:33:50,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:33:50,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:33:50,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:33:50,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:33:50,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:33:50,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:33:50,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:33:50,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:33:50,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:33:50,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (1/1) ... [2021-10-13 07:33:50,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:33:50,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:33:50,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:33:50,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:33:50,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:33:50,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:33:50,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:33:50,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:33:53,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:33:53,138 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-13 07:33:53,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:33:53 BoogieIcfgContainer [2021-10-13 07:33:53,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:33:53,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:33:53,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:33:53,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:33:53,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:33:50" (1/3) ... [2021-10-13 07:33:53,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749f40b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:33:53, skipping insertion in model container [2021-10-13 07:33:53,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:33:50" (2/3) ... [2021-10-13 07:33:53,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749f40b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:33:53, skipping insertion in model container [2021-10-13 07:33:53,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:33:53" (3/3) ... [2021-10-13 07:33:53,151 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound1.c [2021-10-13 07:33:53,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:33:53,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-13 07:33:53,217 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:33:53,226 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, mConcurrency=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 [2021-10-13 07:33:53,226 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-13 07:33:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 32 states have (on average 1.6875) internal successors, (54), 41 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) [2021-10-13 07:33:53,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:33:53,250 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:33:53,251 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:33:53,252 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:33:53,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:33:53,259 INFO L82 PathProgramCache]: Analyzing trace with hash 188707214, now seen corresponding path program 1 times [2021-10-13 07:33:53,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:33:53,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148626650] [2021-10-13 07:33:53,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:33:53,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:33:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:33:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:33:53,427 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:33:53,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148626650] [2021-10-13 07:33:53,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148626650] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:33:53,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:33:53,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:33:53,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324830285] [2021-10-13 07:33:53,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:33:53,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:33:53,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:33:53,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:33:53,452 INFO L87 Difference]: Start difference. First operand has 42 states, 32 states have (on average 1.6875) internal successors, (54), 41 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-13 07:33:53,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:33:53,471 INFO L93 Difference]: Finished difference Result 81 states and 103 transitions. [2021-10-13 07:33:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:33:53,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-13 07:33:53,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:33:53,481 INFO L225 Difference]: With dead ends: 81 [2021-10-13 07:33:53,481 INFO L226 Difference]: Without dead ends: 40 [2021-10-13 07:33:53,484 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:33:53,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-13 07:33:53,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-13 07:33:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 39 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:33:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-10-13 07:33:53,521 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 5 [2021-10-13 07:33:53,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:33:53,522 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-10-13 07:33:53,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-13 07:33:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-10-13 07:33:53,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 07:33:53,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:33:53,523 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 07:33:53,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:33:53,524 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:33:53,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:33:53,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1426196737, now seen corresponding path program 1 times [2021-10-13 07:33:53,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:33:53,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212691196] [2021-10-13 07:33:53,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:33:53,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:33:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:33:53,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:33:53,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:33:53,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212691196] [2021-10-13 07:33:53,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212691196] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:33:53,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:33:53,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:33:53,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901409987] [2021-10-13 07:33:53,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:33:53,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:33:53,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:33:53,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:33:53,900 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-13 07:34:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:01,209 INFO L93 Difference]: Finished difference Result 115 states and 118 transitions. [2021-10-13 07:34:01,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:34:01,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-10-13 07:34:01,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:01,215 INFO L225 Difference]: With dead ends: 115 [2021-10-13 07:34:01,215 INFO L226 Difference]: Without dead ends: 78 [2021-10-13 07:34:01,216 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 103.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:34:01,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-13 07:34:01,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 55. [2021-10-13 07:34:01,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 54 states have internal predecessors, (62), 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) [2021-10-13 07:34:01,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-10-13 07:34:01,231 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 6 [2021-10-13 07:34:01,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:01,232 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-10-13 07:34:01,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-13 07:34:01,232 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-10-13 07:34:01,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:34:01,233 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:01,233 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:01,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:34:01,234 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:34:01,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:01,235 INFO L82 PathProgramCache]: Analyzing trace with hash 480653316, now seen corresponding path program 1 times [2021-10-13 07:34:01,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:01,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740695109] [2021-10-13 07:34:01,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:01,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:01,276 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:34:01,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576710838] [2021-10-13 07:34:01,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:01,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:34:01,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:34:01,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:34:01,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:34:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:01,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:34:01,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:34:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:01,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:34:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:02,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:02,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740695109] [2021-10-13 07:34:02,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:34:02,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576710838] [2021-10-13 07:34:02,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576710838] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:02,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:02,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:34:02,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153884921] [2021-10-13 07:34:02,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:34:02,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:34:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:34:02,318 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-13 07:34:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:11,002 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2021-10-13 07:34:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:34:11,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 8 [2021-10-13 07:34:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:11,006 INFO L225 Difference]: With dead ends: 93 [2021-10-13 07:34:11,006 INFO L226 Difference]: Without dead ends: 77 [2021-10-13 07:34:11,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 175.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:34:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-13 07:34:11,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 70. [2021-10-13 07:34:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 69 states have internal predecessors, (76), 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) [2021-10-13 07:34:11,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2021-10-13 07:34:11,019 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 8 [2021-10-13 07:34:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:11,019 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2021-10-13 07:34:11,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-13 07:34:11,020 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2021-10-13 07:34:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:34:11,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:11,020 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:11,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:34:11,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:34:11,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:34:11,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:11,242 INFO L82 PathProgramCache]: Analyzing trace with hash 522498748, now seen corresponding path program 1 times [2021-10-13 07:34:11,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:11,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859201361] [2021-10-13 07:34:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:11,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:11,511 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:11,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859201361] [2021-10-13 07:34:11,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859201361] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:34:11,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039362796] [2021-10-13 07:34:11,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:11,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:34:11,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:34:11,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:34:11,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 07:34:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:11,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:34:11,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:34:11,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:11,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:34:11,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:11,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039362796] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:34:11,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1422500240] [2021-10-13 07:34:11,963 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:34:11,964 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:34:11,973 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:34:11,986 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:34:11,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:34:12,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,045 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:34:12,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:34:12,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:34:12,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:34:12,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-13 07:34:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:34:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:34:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:34:12,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 07:34:12,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:34:12,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:34:12,142 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:34:12,153 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 07:34:12,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:34:12,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:34:12,157 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 07:34:12,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:34:12,210 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:34:12,217 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.7 percent of original size [2021-10-13 07:34:12,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-13 07:34:12,223 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:34:12,223 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:298, output treesize:146 [2021-10-13 07:34:12,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:34:12,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:34:12,437 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_22| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:34:12,441 INFO L168 Benchmark]: Toolchain (without parser) took 22276.34 ms. Allocated memory was 109.1 MB in the beginning and 153.1 MB in the end (delta: 44.0 MB). Free memory was 71.1 MB in the beginning and 94.2 MB in the end (delta: -23.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:12,442 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 88.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:34:12,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.95 ms. Allocated memory is still 109.1 MB. Free memory was 70.9 MB in the beginning and 82.6 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:12,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.54 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 80.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:12,443 INFO L168 Benchmark]: Boogie Preprocessor took 30.88 ms. Allocated memory is still 109.1 MB. Free memory was 80.5 MB in the beginning and 79.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:34:12,444 INFO L168 Benchmark]: RCFGBuilder took 2529.96 ms. Allocated memory is still 109.1 MB. Free memory was 79.1 MB in the beginning and 62.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:12,444 INFO L168 Benchmark]: TraceAbstraction took 19296.88 ms. Allocated memory was 109.1 MB in the beginning and 153.1 MB in the end (delta: 44.0 MB). Free memory was 62.3 MB in the beginning and 94.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:12,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 88.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.95 ms. Allocated memory is still 109.1 MB. Free memory was 70.9 MB in the beginning and 82.6 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.54 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 80.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.88 ms. Allocated memory is still 109.1 MB. Free memory was 80.5 MB in the beginning and 79.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2529.96 ms. Allocated memory is still 109.1 MB. Free memory was 79.1 MB in the beginning and 62.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19296.88 ms. Allocated memory was 109.1 MB in the beginning and 153.1 MB in the end (delta: 44.0 MB). Free memory was 62.3 MB in the beginning and 94.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_22| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_22|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:34:12,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:34:15,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:34:15,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:34:15,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:34:15,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:34:15,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:34:15,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:34:15,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:34:15,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:34:15,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:34:15,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:34:15,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:34:15,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:34:15,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:34:15,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:34:15,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:34:15,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:34:15,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:34:15,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:34:15,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:34:15,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:34:15,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:34:15,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:34:15,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:34:15,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:34:15,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:34:15,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:34:15,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:34:15,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:34:15,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:34:15,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:34:15,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:34:15,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:34:15,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:34:15,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:34:15,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:34:15,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:34:15,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:34:15,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:34:15,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:34:15,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:34:15,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:34:15,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:34:15,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:34:15,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:34:15,379 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:34:15,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:34:15,380 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:34:15,380 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:34:15,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:34:15,381 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:34:15,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:34:15,382 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:34:15,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:34:15,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:34:15,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:34:15,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:34:15,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:34:15,383 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:34:15,384 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:34:15,384 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:34:15,384 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:34:15,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:34:15,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:34:15,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:34:15,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:34:15,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:34:15,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:34:15,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:34:15,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:34:15,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:34:15,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:34:15,387 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:34:15,387 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:34:15,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:34:15,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:34:15,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:34:15,388 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_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bc7ea9594894bce31579a47be3b0c06f18caebb [2021-10-13 07:34:15,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:34:15,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:34:15,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:34:15,853 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:34:15,854 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:34:15,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-13 07:34:15,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/9199745fe/459a60c6661b4cff9de3fef906d0d3f1/FLAG45277fa27 [2021-10-13 07:34:16,554 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:34:16,554 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c [2021-10-13 07:34:16,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/9199745fe/459a60c6661b4cff9de3fef906d0d3f1/FLAG45277fa27 [2021-10-13 07:34:16,923 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/data/9199745fe/459a60c6661b4cff9de3fef906d0d3f1 [2021-10-13 07:34:16,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:34:16,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:34:16,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:34:16,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:34:16,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:34:16,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:16" (1/1) ... [2021-10-13 07:34:16,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae17679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:16, skipping insertion in model container [2021-10-13 07:34:16,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:16" (1/1) ... [2021-10-13 07:34:16,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:34:16,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:34:17,140 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_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-13 07:34:17,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:34:17,193 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:34:17,213 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_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound1.c[525,538] [2021-10-13 07:34:17,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:34:17,295 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:34:17,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17 WrapperNode [2021-10-13 07:34:17,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:34:17,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:34:17,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:34:17,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:34:17,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:34:17,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:34:17,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:34:17,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:34:17,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:34:17,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:34:17,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:34:17,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:34:17,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (1/1) ... [2021-10-13 07:34:17,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:34:17,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:34:17,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:34:17,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:34:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:34:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:34:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:34:17,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:34:19,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:34:19,000 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-13 07:34:19,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:19 BoogieIcfgContainer [2021-10-13 07:34:19,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:34:19,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:34:19,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:34:19,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:34:19,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:34:16" (1/3) ... [2021-10-13 07:34:19,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bdbb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:19, skipping insertion in model container [2021-10-13 07:34:19,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:17" (2/3) ... [2021-10-13 07:34:19,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bdbb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:19, skipping insertion in model container [2021-10-13 07:34:19,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:19" (3/3) ... [2021-10-13 07:34:19,012 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound1.c [2021-10-13 07:34:19,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:34:19,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-13 07:34:19,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:34:19,078 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, mConcurrency=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 [2021-10-13 07:34:19,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-13 07:34:19,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 40 states have (on average 1.675) internal successors, (67), 49 states have internal predecessors, (67), 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) [2021-10-13 07:34:19,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:34:19,100 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:19,101 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:19,101 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:34:19,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:19,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1235857098, now seen corresponding path program 1 times [2021-10-13 07:34:19,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:34:19,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650139167] [2021-10-13 07:34:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:19,123 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:34:19,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:34:19,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:34:19,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:34:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:19,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:34:19,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:34:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:19,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:34:19,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:19,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:34:19,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650139167] [2021-10-13 07:34:19,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650139167] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:19,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:19,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:34:19,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480501052] [2021-10-13 07:34:19,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:34:19,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:34:19,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:34:19,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:34:19,352 INFO L87 Difference]: Start difference. First operand has 50 states, 40 states have (on average 1.675) internal successors, (67), 49 states have internal predecessors, (67), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 07:34:19,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:19,377 INFO L93 Difference]: Finished difference Result 97 states and 130 transitions. [2021-10-13 07:34:19,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:34:19,378 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-13 07:34:19,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:19,386 INFO L225 Difference]: With dead ends: 97 [2021-10-13 07:34:19,387 INFO L226 Difference]: Without dead ends: 46 [2021-10-13 07:34:19,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:34:19,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-13 07:34:19,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-13 07:34:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 45 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-10-13 07:34:19,426 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 10 [2021-10-13 07:34:19,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:19,427 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-10-13 07:34:19,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 07:34:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-10-13 07:34:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:34:19,429 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:19,429 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:19,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:34:19,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:34:19,642 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:34:19,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:19,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1503620767, now seen corresponding path program 1 times [2021-10-13 07:34:19,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:34:19,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73004093] [2021-10-13 07:34:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:19,646 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:34:19,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:34:19,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:34:19,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:34:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:19,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 07:34:19,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:34:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:20,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:34:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:20,644 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:34:20,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73004093] [2021-10-13 07:34:20,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73004093] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:20,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:20,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 10 [2021-10-13 07:34:20,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360018932] [2021-10-13 07:34:20,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:34:20,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:34:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:34:20,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:34:20,658 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:24,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:24,736 INFO L93 Difference]: Finished difference Result 147 states and 160 transitions. [2021-10-13 07:34:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 07:34:24,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 07:34:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:24,750 INFO L225 Difference]: With dead ends: 147 [2021-10-13 07:34:24,750 INFO L226 Difference]: Without dead ends: 105 [2021-10-13 07:34:24,753 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1296.4ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:34:24,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-13 07:34:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 67. [2021-10-13 07:34:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 66 states have internal predecessors, (72), 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) [2021-10-13 07:34:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-10-13 07:34:24,769 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 11 [2021-10-13 07:34:24,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:24,770 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-10-13 07:34:24,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:24,771 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-10-13 07:34:24,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 07:34:24,772 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:24,772 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:24,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:34:24,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:34:24,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:34:24,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:24,985 INFO L82 PathProgramCache]: Analyzing trace with hash 2147482631, now seen corresponding path program 1 times [2021-10-13 07:34:24,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:34:24,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848341349] [2021-10-13 07:34:24,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:24,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:34:24,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:34:24,991 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:34:24,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:34:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:25,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 07:34:25,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:34:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:25,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:34:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:32,101 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:34:32,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848341349] [2021-10-13 07:34:32,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848341349] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:32,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:32,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 8 [2021-10-13 07:34:32,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986473949] [2021-10-13 07:34:32,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:34:32,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:34:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:34:32,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:34:32,104 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:59,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:59,039 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2021-10-13 07:34:59,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:34:59,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 07:34:59,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:59,059 INFO L225 Difference]: With dead ends: 103 [2021-10-13 07:34:59,059 INFO L226 Difference]: Without dead ends: 84 [2021-10-13 07:34:59,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 16644.2ms TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2021-10-13 07:34:59,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-13 07:34:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 56. [2021-10-13 07:34:59,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 55 states have internal predecessors, (60), 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) [2021-10-13 07:34:59,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-13 07:34:59,086 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 15 [2021-10-13 07:34:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:59,087 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-13 07:34:59,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-10-13 07:34:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 07:34:59,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:59,088 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:59,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:34:59,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:34:59,298 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:34:59,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:59,299 INFO L82 PathProgramCache]: Analyzing trace with hash -588730529, now seen corresponding path program 1 times [2021-10-13 07:34:59,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:34:59,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380383222] [2021-10-13 07:34:59,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:59,300 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:34:59,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:34:59,301 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:34:59,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:34:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:59,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:34:59,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:00,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:35:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:02,595 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:35:02,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380383222] [2021-10-13 07:35:02,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380383222] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:35:02,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1135952904] [2021-10-13 07:35:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:35:02,596 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:35:02,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:35:02,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:35:02,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-13 07:35:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:35:02,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 07:35:02,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:03,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:35:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:06,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1135952904] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:35:06,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933103148] [2021-10-13 07:35:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:35:06,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:35:06,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:35:06,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:35:06,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 07:35:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:35:06,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 07:35:06,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:07,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:35:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:14,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933103148] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:35:14,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:35:14,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 7, 6, 9, 8] total 18 [2021-10-13 07:35:14,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024811561] [2021-10-13 07:35:14,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 07:35:14,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:35:14,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 07:35:14,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:35:14,566 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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) [2021-10-13 07:35:28,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:35:28,622 INFO L93 Difference]: Finished difference Result 128 states and 144 transitions. [2021-10-13 07:35:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 07:35:28,623 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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 15 [2021-10-13 07:35:28,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:35:28,624 INFO L225 Difference]: With dead ends: 128 [2021-10-13 07:35:28,625 INFO L226 Difference]: Without dead ends: 84 [2021-10-13 07:35:28,626 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 12968.5ms TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2021-10-13 07:35:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-13 07:35:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77. [2021-10-13 07:35:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 76 states have internal predecessors, (81), 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) [2021-10-13 07:35:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2021-10-13 07:35:28,653 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 15 [2021-10-13 07:35:28,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:35:28,653 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2021-10-13 07:35:28,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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) [2021-10-13 07:35:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2021-10-13 07:35:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:35:28,655 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:35:28,655 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:35:28,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:35:28,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-10-13 07:35:29,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-13 07:35:29,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:35:29,260 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:35:29,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:35:29,261 INFO L82 PathProgramCache]: Analyzing trace with hash -957581047, now seen corresponding path program 1 times [2021-10-13 07:35:29,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:35:29,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003984538] [2021-10-13 07:35:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:35:29,262 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:35:29,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:35:29,263 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:35:29,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:35:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:35:29,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 07:35:29,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:31,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:35:32,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:32,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:35:32,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003984538] [2021-10-13 07:35:32,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003984538] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:35:32,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [489575343] [2021-10-13 07:35:32,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:35:32,516 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:35:32,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:35:32,521 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:35:32,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 07:35:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:35:33,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 07:35:33,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:34,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:35:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:37,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [489575343] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:35:37,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488157161] [2021-10-13 07:35:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:35:37,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:35:37,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:35:37,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:35:37,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 07:35:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:35:37,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 07:35:37,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:38,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:35:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:46,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488157161] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:35:46,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:35:46,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10, 8, 10, 9] total 28 [2021-10-13 07:35:46,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411192357] [2021-10-13 07:35:46,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 07:35:46,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:35:46,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 07:35:46,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2021-10-13 07:35:46,273 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 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) [2021-10-13 07:35:52,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:35:52,521 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2021-10-13 07:35:52,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 07:35:52,522 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 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 [2021-10-13 07:35:52,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:35:52,523 INFO L225 Difference]: With dead ends: 112 [2021-10-13 07:35:52,523 INFO L226 Difference]: Without dead ends: 59 [2021-10-13 07:35:52,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 8259.3ms TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 07:35:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-13 07:35:52,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-13 07:35:52,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 58 states have internal predecessors, (58), 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) [2021-10-13 07:35:52,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 58 transitions. [2021-10-13 07:35:52,537 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 58 transitions. Word has length 27 [2021-10-13 07:35:52,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:35:52,538 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 58 transitions. [2021-10-13 07:35:52,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 states have internal predecessors, (106), 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) [2021-10-13 07:35:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 58 transitions. [2021-10-13 07:35:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:35:52,540 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:35:52,540 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:35:52,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-10-13 07:35:52,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-13 07:35:52,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-13 07:35:53,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:35:53,149 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:35:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:35:53,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1112228340, now seen corresponding path program 1 times [2021-10-13 07:35:53,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:35:53,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889627915] [2021-10-13 07:35:53,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:35:53,150 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:35:53,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:35:53,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:35:53,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:35:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:35:53,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 07:35:53,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:35:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:35:54,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:36:05,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:05,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:36:05,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889627915] [2021-10-13 07:36:05,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889627915] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:36:05,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [589140460] [2021-10-13 07:36:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:05,848 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:36:05,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:36:05,849 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:36:05,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-13 07:36:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:36:06,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 07:36:06,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:36:08,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:08,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:36:27,313 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:27,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [589140460] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:36:27,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893148360] [2021-10-13 07:36:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:27,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:36:27,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:36:27,315 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:36:27,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 07:36:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:36:27,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 07:36:27,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:36:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:30,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:37:14,867 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:37:14,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893148360] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:37:14,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:37:14,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 8, 12, 12] total 29 [2021-10-13 07:37:14,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151528914] [2021-10-13 07:37:14,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 07:37:14,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:37:14,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 07:37:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2021-10-13 07:37:14,872 INFO L87 Difference]: Start difference. First operand 59 states and 58 transitions. Second operand has 29 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 29 states have internal predecessors, (102), 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) [2021-10-13 07:37:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:37:23,869 INFO L93 Difference]: Finished difference Result 59 states and 58 transitions. [2021-10-13 07:37:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 07:37:23,870 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 29 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 07:37:23,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:37:23,871 INFO L225 Difference]: With dead ends: 59 [2021-10-13 07:37:23,872 INFO L226 Difference]: Without dead ends: 53 [2021-10-13 07:37:23,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 52566.7ms TimeCoverageRelationStatistics Valid=350, Invalid=982, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 07:37:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-13 07:37:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-13 07:37:23,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 52 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:37:23,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 52 transitions. [2021-10-13 07:37:23,884 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 52 transitions. Word has length 29 [2021-10-13 07:37:23,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:37:23,884 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 52 transitions. [2021-10-13 07:37:23,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.5172413793103448) internal successors, (102), 29 states have internal predecessors, (102), 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) [2021-10-13 07:37:23,885 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2021-10-13 07:37:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 07:37:23,886 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:37:23,886 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:37:23,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:37:24,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:37:24,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:37:24,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:37:24,490 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:37:24,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:37:24,490 INFO L82 PathProgramCache]: Analyzing trace with hash 595578799, now seen corresponding path program 1 times [2021-10-13 07:37:24,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:37:24,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456716873] [2021-10-13 07:37:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:37:24,491 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:37:24,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:37:24,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:37:24,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 07:37:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:37:25,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 07:37:25,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:37:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:37:26,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:38:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:38:18,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:38:18,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456716873] [2021-10-13 07:38:18,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456716873] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:38:18,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [72277460] [2021-10-13 07:38:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:38:18,158 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:38:18,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:38:18,165 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:38:18,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-13 07:38:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:38:19,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 07:38:19,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:38:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:38:21,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:39:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:41,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [72277460] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:39:41,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706397145] [2021-10-13 07:39:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:39:41,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:39:41,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:39:41,077 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:39:41,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-13 07:39:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:39:41,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 07:39:41,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:39:47,223 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:39:47,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:43:02,132 WARN L207 SmtUtils]: Spent 5.35 s on a formula simplification that was a NOOP. DAG size: 73 [2021-10-13 07:43:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:08,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706397145] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:43:08,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:43:08,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 8, 12, 12] total 29 [2021-10-13 07:43:08,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058564390] [2021-10-13 07:43:08,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 07:43:08,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:43:08,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 07:43:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=643, Unknown=2, NotChecked=0, Total=812 [2021-10-13 07:43:08,241 INFO L87 Difference]: Start difference. First operand 53 states and 52 transitions. Second operand has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 29 states have internal predecessors, (106), 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) [2021-10-13 07:43:33,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:33,290 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2021-10-13 07:43:33,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 07:43:33,291 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 29 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-13 07:43:33,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:33,291 INFO L225 Difference]: With dead ends: 53 [2021-10-13 07:43:33,291 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:43:33,293 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 150 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 234762.3ms TimeCoverageRelationStatistics Valid=336, Invalid=994, Unknown=2, NotChecked=0, Total=1332 [2021-10-13 07:43:33,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:43:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:43:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-13 07:43:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:43:33,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-10-13 07:43:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:33,294 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:43:33,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.6551724137931036) internal successors, (106), 29 states have internal predecessors, (106), 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) [2021-10-13 07:43:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:43:33,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:43:33,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:43:33,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:43:33,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:43:33,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:43:33,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:43:33,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:43:33,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:34,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:39,314 WARN L207 SmtUtils]: Spent 5.05 s on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2021-10-13 07:43:45,351 WARN L207 SmtUtils]: Spent 6.03 s on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2021-10-13 07:43:51,936 WARN L207 SmtUtils]: Spent 6.58 s on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-10-13 07:43:59,569 WARN L207 SmtUtils]: Spent 6.53 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-13 07:44:06,899 WARN L207 SmtUtils]: Spent 6.18 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-13 07:44:13,966 WARN L207 SmtUtils]: Spent 7.07 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-13 07:44:19,490 WARN L207 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-10-13 07:44:19,493 INFO L860 garLoopResultBuilder]: At program point L60(lines 19 61) the Hoare annotation is: true [2021-10-13 07:44:19,493 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,493 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-10-13 07:44:19,493 INFO L857 garLoopResultBuilder]: For program point L52-2(lines 19 61) no Hoare annotation was computed. [2021-10-13 07:44:19,494 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,494 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:44:19,494 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:44:19,494 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,495 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~q~0))) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:44:19,495 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,495 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:44:19,495 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,495 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:44:19,496 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,496 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:44:19,496 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,496 INFO L853 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:44:19,496 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,497 INFO L853 garLoopResultBuilder]: At program point L12-17(lines 46 47) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:44:19,497 INFO L857 garLoopResultBuilder]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,497 INFO L853 garLoopResultBuilder]: At program point L12-20(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32)))) (or (and .cse0 .cse1 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~p~0 (_ bv0 32)) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0) (bvule ULTIMATE.start_main_~n~0 (_ bv1 32))) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~h~0))) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))))) [2021-10-13 07:44:19,498 INFO L857 garLoopResultBuilder]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,498 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,498 INFO L853 garLoopResultBuilder]: At program point L12-23(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~h~0))) (not (bvuge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~h~0)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse2 (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)))) (and .cse0 .cse1 (= ULTIMATE.start_main_~p~0 (_ bv0 32)) .cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0) (bvule ULTIMATE.start_main_~n~0 (_ bv1 32))))) [2021-10-13 07:44:19,498 INFO L857 garLoopResultBuilder]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:44:19,499 INFO L860 garLoopResultBuilder]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2021-10-13 07:44:19,499 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,499 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,499 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,499 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,500 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,500 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,500 INFO L857 garLoopResultBuilder]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,500 INFO L857 garLoopResultBuilder]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,500 INFO L857 garLoopResultBuilder]: For program point L38-1(lines 38 56) no Hoare annotation was computed. [2021-10-13 07:44:19,501 INFO L857 garLoopResultBuilder]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:44:19,501 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,501 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0)) (.cse3 (bvule ULTIMATE.start_main_~n~0 (_ bv1 32)))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 (= ULTIMATE.start_main_~q~0 (_ bv1 32)) .cse1 .cse2 .cse3) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~h~0)) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse1 .cse2 .cse3 (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:44:19,502 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-13 07:44:19,502 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,502 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:44:19,502 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,503 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,503 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-13 07:44:19,503 INFO L857 garLoopResultBuilder]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2021-10-13 07:44:19,503 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:44:19,503 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,504 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-13 07:44:19,504 INFO L857 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2021-10-13 07:44:19,504 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:44:19,510 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:44:19,521 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:44:19,528 INFO L168 Benchmark]: Toolchain (without parser) took 602598.09 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 36.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:44:19,529 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 33.4 MB in the beginning and 33.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:44:19,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.31 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 35.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:44:19,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.23 ms. Allocated memory is still 52.4 MB. Free memory was 35.6 MB in the beginning and 33.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:44:19,530 INFO L168 Benchmark]: Boogie Preprocessor took 66.03 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 32.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:44:19,531 INFO L168 Benchmark]: RCFGBuilder took 1556.38 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 42.7 MB in the end (delta: -10.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:44:19,531 INFO L168 Benchmark]: TraceAbstraction took 600522.07 ms. Allocated memory is still 65.0 MB. Free memory was 42.3 MB in the beginning and 36.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:44:19,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 33.4 MB in the beginning and 33.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.31 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 35.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.23 ms. Allocated memory is still 52.4 MB. Free memory was 35.6 MB in the beginning and 33.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.03 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 32.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1556.38 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 42.7 MB in the end (delta: -10.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 600522.07 ms. Allocated memory is still 65.0 MB. Free memory was 42.3 MB in the beginning and 36.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 24.6 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 600440.4ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 16.4ms, AutomataDifference: 85478.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 45591.2ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 191 SDtfs, 1402 SDslu, 638 SDs, 0 SdLazy, 1218 SolverSat, 882 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 49121.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 709 GetRequests, 539 SyntacticMatches, 7 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 326497.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=4, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 113.2ms AutomataMinimizationTime, 7 MinimizatonAttempts, 73 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 39 NumberOfFragments, 1053 HoareAnnotationTreeSize, 11 FomulaSimplifications, 1650 FormulaSimplificationTreeSizeReduction, 356.2ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 488 FormulaSimplificationTreeSizeReductionInter, 45225.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 108.4ms SsaConstructionTime, 4776.7ms SatisfiabilityAnalysisTime, 457905.4ms InterpolantComputationTime, 342 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 654 ConstructedInterpolants, 0 QuantifiedInterpolants, 20732 SizeOfPredicates, 130 NumberOfNonLiveVariables, 872 ConjunctsInSsa, 240 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 0/120 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 - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:44:19,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28dc325-3ca8-4c6f-9899-1ae1befb30a6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...