./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs --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 7f7ab7fb07c84cec955ed17f81b1e4c956a66f53 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs --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 7f7ab7fb07c84cec955ed17f81b1e4c956a66f53 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-5709675 [2021-10-16 02:15:34,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:15:34,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:15:34,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:15:34,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:15:34,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:15:34,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:15:34,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:15:34,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:15:34,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:15:34,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:15:34,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:15:34,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:15:34,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:15:34,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:15:34,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:15:34,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:15:34,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:15:34,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:15:34,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:15:34,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:15:34,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:15:34,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:15:34,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:15:34,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:15:34,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:15:34,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:15:34,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:15:34,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:15:34,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:15:34,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:15:34,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:15:34,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:15:34,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:15:34,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:15:34,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:15:34,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:15:34,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:15:34,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:15:34,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:15:34,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:15:34,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:15:34,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:15:34,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:15:34,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:15:34,770 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:15:34,770 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:15:34,770 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:15:34,770 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:15:34,771 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:15:34,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:15:34,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:15:34,779 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:15:34,779 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:15:34,779 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:15:34,779 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:15:34,780 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:15:34,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:15:34,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:15:34,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:15:34,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:15:34,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:15:34,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:15:34,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:15:34,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:15:34,783 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:15:34,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:15:34,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:15:34,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:15:34,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:15:34,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:15:34,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:15:34,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:15:34,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:15:34,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:15:34,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:15:34,786 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:15:34,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:15:34,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:15:34,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:15:34,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:15:34,787 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_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f7ab7fb07c84cec955ed17f81b1e4c956a66f53 [2021-10-16 02:15:35,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:15:35,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:15:35,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:15:35,110 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:15:35,111 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:15:35,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2021-10-16 02:15:35,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/2632bfc4a/5499f46b99c5406e9e68386fe06a6666/FLAGf1aba4845 [2021-10-16 02:15:35,639 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:15:35,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2021-10-16 02:15:35,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/2632bfc4a/5499f46b99c5406e9e68386fe06a6666/FLAGf1aba4845 [2021-10-16 02:15:36,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/2632bfc4a/5499f46b99c5406e9e68386fe06a6666 [2021-10-16 02:15:36,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:15:36,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:15:36,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:15:36,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:15:36,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:15:36,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3eaab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36, skipping insertion in model container [2021-10-16 02:15:36,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:15:36,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:15:36,216 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_9c79943e-9324-4fb5-b059-c512d9954d2e/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c[526,539] [2021-10-16 02:15:36,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:15:36,238 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:15:36,251 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_9c79943e-9324-4fb5-b059-c512d9954d2e/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c[526,539] [2021-10-16 02:15:36,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:15:36,271 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:15:36,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36 WrapperNode [2021-10-16 02:15:36,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:15:36,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:15:36,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:15:36,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:15:36,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:15:36,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:15:36,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:15:36,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:15:36,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:15:36,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:15:36,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:15:36,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:15:36,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (1/1) ... [2021-10-16 02:15:36,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:15:36,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:15:36,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:15:36,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:15:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:15:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:15:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:15:36,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:15:36,877 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:15:36,877 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-16 02:15:36,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:15:36 BoogieIcfgContainer [2021-10-16 02:15:36,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:15:36,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:15:36,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:15:36,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:15:36,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:15:36" (1/3) ... [2021-10-16 02:15:36,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c41610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:15:36, skipping insertion in model container [2021-10-16 02:15:36,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:36" (2/3) ... [2021-10-16 02:15:36,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c41610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:15:36, skipping insertion in model container [2021-10-16 02:15:36,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:15:36" (3/3) ... [2021-10-16 02:15:36,893 INFO L111 eAbstractionObserver]: Analyzing ICFG hard2_valuebound1.c [2021-10-16 02:15:36,905 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:15:36,906 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-16 02:15:36,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:15:36,955 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 [2021-10-16 02:15:36,955 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 02:15:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 25 states have (on average 1.72) internal successors, (43), 32 states have internal predecessors, (43), 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) [2021-10-16 02:15:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:15:36,973 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:36,974 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:15:36,974 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:36,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:36,980 INFO L82 PathProgramCache]: Analyzing trace with hash 5022860, now seen corresponding path program 1 times [2021-10-16 02:15:36,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:15:36,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983822532] [2021-10-16 02:15:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:36,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:15:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:37,161 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:15:37,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983822532] [2021-10-16 02:15:37,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983822532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:37,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:37,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:15:37,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54214450] [2021-10-16 02:15:37,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:15:37,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:15:37,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:15:37,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:15:37,184 INFO L87 Difference]: Start difference. First operand has 33 states, 25 states have (on average 1.72) internal successors, (43), 32 states have internal predecessors, (43), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-16 02:15:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:37,259 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions. [2021-10-16 02:15:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:15:37,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-16 02:15:37,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:37,268 INFO L225 Difference]: With dead ends: 83 [2021-10-16 02:15:37,269 INFO L226 Difference]: Without dead ends: 47 [2021-10-16 02:15:37,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:15:37,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-16 02:15:37,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 29. [2021-10-16 02:15:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-10-16 02:15:37,304 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 4 [2021-10-16 02:15:37,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:37,304 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-16 02:15:37,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-16 02:15:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-10-16 02:15:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:15:37,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:37,306 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:15:37,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:15:37,306 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:37,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:37,307 INFO L82 PathProgramCache]: Analyzing trace with hash 532156911, now seen corresponding path program 1 times [2021-10-16 02:15:37,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:15:37,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979474248] [2021-10-16 02:15:37,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:37,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:15:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:37,375 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:15:37,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979474248] [2021-10-16 02:15:37,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979474248] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:37,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:37,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:15:37,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124069611] [2021-10-16 02:15:37,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:15:37,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:15:37,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:15:37,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:15:37,384 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2021-10-16 02:15:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:37,463 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-10-16 02:15:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:15:37,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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 [2021-10-16 02:15:37,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:37,467 INFO L225 Difference]: With dead ends: 47 [2021-10-16 02:15:37,467 INFO L226 Difference]: Without dead ends: 45 [2021-10-16 02:15:37,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:15:37,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-16 02:15:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 27. [2021-10-16 02:15:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 26 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) [2021-10-16 02:15:37,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-16 02:15:37,485 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 6 [2021-10-16 02:15:37,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:37,485 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-16 02:15:37,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2021-10-16 02:15:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-16 02:15:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:15:37,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:37,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:37,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:15:37,488 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:37,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:37,489 INFO L82 PathProgramCache]: Analyzing trace with hash 301839346, now seen corresponding path program 1 times [2021-10-16 02:15:37,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:15:37,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177077911] [2021-10-16 02:15:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:37,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:15:37,533 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:15:37,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737123249] [2021-10-16 02:15:37,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:37,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:15:37,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:15:37,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:15:37,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:15:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:37,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:15:37,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:37,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:37,850 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:15:37,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177077911] [2021-10-16 02:15:37,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:15:37,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737123249] [2021-10-16 02:15:37,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737123249] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:37,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:37,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:15:37,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050166146] [2021-10-16 02:15:37,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:15:37,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:15:37,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:15:37,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:15:37,857 INFO L87 Difference]: Start difference. First operand 27 states and 28 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) [2021-10-16 02:15:40,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:40,275 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2021-10-16 02:15:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:15:40,277 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 [2021-10-16 02:15:40,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:40,279 INFO L225 Difference]: With dead ends: 79 [2021-10-16 02:15:40,279 INFO L226 Difference]: Without dead ends: 58 [2021-10-16 02:15:40,279 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:15:40,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-16 02:15:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 43. [2021-10-16 02:15:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.205128205128205) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-10-16 02:15:40,300 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 8 [2021-10-16 02:15:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:40,300 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-10-16 02:15:40,300 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) [2021-10-16 02:15:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-10-16 02:15:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:15:40,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:40,301 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:40,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:15:40,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:15:40,525 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:40,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:40,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1560639569, now seen corresponding path program 1 times [2021-10-16 02:15:40,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:15:40,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409092944] [2021-10-16 02:15:40,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:40,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:15:40,554 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:15:40,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157338655] [2021-10-16 02:15:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:40,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:15:40,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:15:40,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:15:40,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:15:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:40,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:15:40,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:40,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:40,916 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:15:40,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409092944] [2021-10-16 02:15:40,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:15:40,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157338655] [2021-10-16 02:15:40,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157338655] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:40,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:40,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:15:40,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383186131] [2021-10-16 02:15:40,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:15:40,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:15:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:15:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:15:40,919 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:40,996 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-10-16 02:15:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:15:40,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-16 02:15:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:40,998 INFO L225 Difference]: With dead ends: 54 [2021-10-16 02:15:40,998 INFO L226 Difference]: Without dead ends: 43 [2021-10-16 02:15:40,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:15:40,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-16 02:15:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2021-10-16 02:15:41,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 38 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) [2021-10-16 02:15:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-16 02:15:41,019 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2021-10-16 02:15:41,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:41,020 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-16 02:15:41,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-16 02:15:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 02:15:41,021 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:41,021 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:41,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-16 02:15:41,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:15:41,230 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:41,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:41,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1937603957, now seen corresponding path program 1 times [2021-10-16 02:15:41,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:15:41,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682990296] [2021-10-16 02:15:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:41,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:15:41,244 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:15:41,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20981178] [2021-10-16 02:15:41,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:41,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:15:41,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:15:41,246 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:15:41,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:15:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:41,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-16 02:15:41,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:41,907 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:41,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:45,209 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:15:45,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682990296] [2021-10-16 02:15:45,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:15:45,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20981178] [2021-10-16 02:15:45,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20981178] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:15:45,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1555135058] [2021-10-16 02:15:45,230 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-10-16 02:15:45,230 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:15:45,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:15:45,240 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:15:45,240 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:15:45,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,278 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:15:45,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:15:45,280 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:15:45,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:15:45,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-10-16 02:15:45,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:15:45,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:15:45,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:15:45,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:15:45,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:15:45,318 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:15:45,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:15:45,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:15:45,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:15:45,399 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:15:45,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 02:15:45,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:15:45,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:15:45,406 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 02:15:45,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:15:45,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:15:45,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:15:45,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:15:45,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:15:45,413 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 02:15:45,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:15:45,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:15:45,451 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.2 percent of original size [2021-10-16 02:15:45,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-16 02:15:45,454 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:15:45,454 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:462, output treesize:131 [2021-10-16 02:15:45,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-16 02:15:45,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:15:45,682 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_13| 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) [2021-10-16 02:15:45,686 INFO L168 Benchmark]: Toolchain (without parser) took 9634.37 ms. Allocated memory was 96.5 MB in the beginning and 148.9 MB in the end (delta: 52.4 MB). Free memory was 54.4 MB in the beginning and 115.9 MB in the end (delta: -61.5 MB). Peak memory consumption was 68.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:15:45,686 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:15:45,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.54 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 54.1 MB in the beginning and 93.9 MB in the end (delta: -39.8 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:15:45,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.86 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 92.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:15:45,687 INFO L168 Benchmark]: Boogie Preprocessor took 24.10 ms. Allocated memory is still 119.5 MB. Free memory was 92.2 MB in the beginning and 91.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:15:45,688 INFO L168 Benchmark]: RCFGBuilder took 544.61 ms. Allocated memory is still 119.5 MB. Free memory was 91.0 MB in the beginning and 88.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:15:45,688 INFO L168 Benchmark]: TraceAbstraction took 8803.88 ms. Allocated memory was 119.5 MB in the beginning and 148.9 MB in the end (delta: 29.4 MB). Free memory was 88.3 MB in the beginning and 115.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:15:45,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 96.5 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 219.54 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 54.1 MB in the beginning and 93.9 MB in the end (delta: -39.8 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.86 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 92.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.10 ms. Allocated memory is still 119.5 MB. Free memory was 92.2 MB in the beginning and 91.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 544.61 ms. Allocated memory is still 119.5 MB. Free memory was 91.0 MB in the beginning and 88.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8803.88 ms. Allocated memory was 119.5 MB in the beginning and 148.9 MB in the end (delta: 29.4 MB). Free memory was 88.3 MB in the beginning and 115.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_13| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_13|: 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. [2021-10-16 02:15:45,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:15:48,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:15:48,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:15:48,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:15:48,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:15:48,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:15:48,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:15:48,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:15:48,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:15:48,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:15:48,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:15:48,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:15:48,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:15:48,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:15:48,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:15:48,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:15:48,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:15:48,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:15:48,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:15:48,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:15:48,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:15:48,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:15:48,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:15:48,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:15:48,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:15:48,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:15:48,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:15:48,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:15:48,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:15:48,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:15:48,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:15:48,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:15:48,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:15:48,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:15:48,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:15:48,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:15:48,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:15:48,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:15:48,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:15:48,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:15:48,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:15:48,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:15:48,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:15:48,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:15:48,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:15:48,306 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:15:48,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:15:48,307 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:15:48,307 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:15:48,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:15:48,307 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:15:48,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:15:48,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:15:48,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:15:48,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:15:48,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:15:48,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:15:48,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:15:48,312 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:15:48,312 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:15:48,312 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:15:48,312 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:15:48,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:15:48,313 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:15:48,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:15:48,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:15:48,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:15:48,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:15:48,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:15:48,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:15:48,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:15:48,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:15:48,315 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:15:48,315 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:15:48,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:15:48,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:15:48,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:15:48,317 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_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f7ab7fb07c84cec955ed17f81b1e4c956a66f53 [2021-10-16 02:15:48,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:15:48,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:15:48,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:15:48,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:15:48,778 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:15:48,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2021-10-16 02:15:48,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/4ba23939c/cb7cc86e36e745558fbe5bd170a0297c/FLAG405c48726 [2021-10-16 02:15:49,308 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:15:49,308 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2021-10-16 02:15:49,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/4ba23939c/cb7cc86e36e745558fbe5bd170a0297c/FLAG405c48726 [2021-10-16 02:15:49,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/data/4ba23939c/cb7cc86e36e745558fbe5bd170a0297c [2021-10-16 02:15:49,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:15:49,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:15:49,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:15:49,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:15:49,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:15:49,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:15:49" (1/1) ... [2021-10-16 02:15:49,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbd91ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:49, skipping insertion in model container [2021-10-16 02:15:49,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:15:49" (1/1) ... [2021-10-16 02:15:49,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:15:49,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:15:49,970 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_9c79943e-9324-4fb5-b059-c512d9954d2e/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c[526,539] [2021-10-16 02:15:49,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:15:50,008 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:15:50,036 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_9c79943e-9324-4fb5-b059-c512d9954d2e/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c[526,539] [2021-10-16 02:15:50,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:15:50,074 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:15:50,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50 WrapperNode [2021-10-16 02:15:50,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:15:50,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:15:50,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:15:50,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:15:50,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:15:50,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:15:50,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:15:50,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:15:50,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:15:50,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:15:50,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:15:50,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:15:50,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (1/1) ... [2021-10-16 02:15:50,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:15:50,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:15:50,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:15:50,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:15:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:15:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:15:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:15:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:15:50,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:15:50,743 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-16 02:15:50,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:15:50 BoogieIcfgContainer [2021-10-16 02:15:50,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:15:50,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:15:50,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:15:50,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:15:50,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:15:49" (1/3) ... [2021-10-16 02:15:50,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2842db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:15:50, skipping insertion in model container [2021-10-16 02:15:50,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:15:50" (2/3) ... [2021-10-16 02:15:50,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2842db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:15:50, skipping insertion in model container [2021-10-16 02:15:50,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:15:50" (3/3) ... [2021-10-16 02:15:50,754 INFO L111 eAbstractionObserver]: Analyzing ICFG hard2_valuebound1.c [2021-10-16 02:15:50,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:15:50,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-16 02:15:50,818 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:15:50,824 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 [2021-10-16 02:15:50,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 02:15:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 38 states have internal predecessors, (53), 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) [2021-10-16 02:15:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:15:50,857 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:50,858 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:50,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:50,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:50,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-16 02:15:50,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:15:50,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847376426] [2021-10-16 02:15:50,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:50,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:15:50,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:15:50,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:15:50,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:15:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:50,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:15:50,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:51,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:51,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:51,036 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:15:51,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847376426] [2021-10-16 02:15:51,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847376426] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:51,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:51,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:15:51,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630361272] [2021-10-16 02:15:51,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:15:51,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:15:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:15:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:15:51,059 INFO L87 Difference]: Start difference. First operand has 39 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 38 states have internal predecessors, (53), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-16 02:15:51,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:51,077 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2021-10-16 02:15:51,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:15:51,079 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-16 02:15:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:51,087 INFO L225 Difference]: With dead ends: 75 [2021-10-16 02:15:51,087 INFO L226 Difference]: Without dead ends: 35 [2021-10-16 02:15:51,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:15:51,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-16 02:15:51,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-16 02:15:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 34 states have internal predecessors, (37), 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) [2021-10-16 02:15:51,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-10-16 02:15:51,122 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2021-10-16 02:15:51,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:51,123 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-10-16 02:15:51,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-16 02:15:51,123 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-10-16 02:15:51,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:15:51,124 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:51,124 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:51,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:15:51,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:15:51,335 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:51,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:51,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-16 02:15:51,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:15:51,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931544093] [2021-10-16 02:15:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:51,338 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:15:51,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:15:51,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:15:51,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:15:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:51,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:15:51,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:51,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:51,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:51,491 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:15:51,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931544093] [2021-10-16 02:15:51,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931544093] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:51,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:51,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-16 02:15:51,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808475514] [2021-10-16 02:15:51,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:15:51,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:15:51,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:15:51,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:15:51,510 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-10-16 02:15:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:51,734 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-10-16 02:15:51,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:15:51,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 7 [2021-10-16 02:15:51,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:51,739 INFO L225 Difference]: With dead ends: 54 [2021-10-16 02:15:51,739 INFO L226 Difference]: Without dead ends: 52 [2021-10-16 02:15:51,740 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:15:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-16 02:15:51,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 33. [2021-10-16 02:15:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-10-16 02:15:51,752 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 7 [2021-10-16 02:15:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:51,753 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-10-16 02:15:51,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-10-16 02:15:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-10-16 02:15:51,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:15:51,754 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:51,754 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:51,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:15:51,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:15:51,955 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:51,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:51,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-16 02:15:51,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:15:51,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124784382] [2021-10-16 02:15:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:51,958 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:15:51,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:15:51,959 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:15:51,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:15:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:52,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:15:52,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:52,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:52,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:52,112 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:15:52,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124784382] [2021-10-16 02:15:52,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124784382] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:52,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:52,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-16 02:15:52,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760938562] [2021-10-16 02:15:52,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:15:52,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:15:52,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:15:52,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:15:52,116 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-16 02:15:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:52,333 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2021-10-16 02:15:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:15:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 9 [2021-10-16 02:15:52,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:52,335 INFO L225 Difference]: With dead ends: 52 [2021-10-16 02:15:52,346 INFO L226 Difference]: Without dead ends: 50 [2021-10-16 02:15:52,346 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:15:52,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-16 02:15:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2021-10-16 02:15:52,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:52,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-10-16 02:15:52,354 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 9 [2021-10-16 02:15:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:52,355 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-16 02:15:52,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-16 02:15:52,355 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-10-16 02:15:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:15:52,356 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:52,356 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:52,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:15:52,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:15:52,567 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:52,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:52,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-16 02:15:52,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:15:52,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814291986] [2021-10-16 02:15:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:52,569 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:15:52,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:15:52,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:15:52,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:15:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:52,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:15:52,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:52,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:53,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:15:53,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814291986] [2021-10-16 02:15:53,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814291986] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:53,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:53,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:15:53,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180304116] [2021-10-16 02:15:53,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:15:53,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:15:53,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:15:53,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:15:53,012 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:15:55,885 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2021-10-16 02:15:55,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:15:55,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-16 02:15:55,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:15:55,888 INFO L225 Difference]: With dead ends: 96 [2021-10-16 02:15:55,888 INFO L226 Difference]: Without dead ends: 74 [2021-10-16 02:15:55,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.7ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:15:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-16 02:15:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 56. [2021-10-16 02:15:55,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 55 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) [2021-10-16 02:15:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2021-10-16 02:15:55,902 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 11 [2021-10-16 02:15:55,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:15:55,903 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2021-10-16 02:15:55,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:15:55,903 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2021-10-16 02:15:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 02:15:55,904 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:15:55,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:15:55,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:15:56,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:15:56,112 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:15:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:15:56,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1783857492, now seen corresponding path program 1 times [2021-10-16 02:15:56,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:15:56,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653774334] [2021-10-16 02:15:56,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:15:56,115 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:15:56,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:15:56,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:15:56,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:15:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:15:56,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:15:56,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:15:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:56,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:15:57,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:15:57,666 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:15:57,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653774334] [2021-10-16 02:15:57,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653774334] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:15:57,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:15:57,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 10 [2021-10-16 02:15:57,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100172338] [2021-10-16 02:15:57,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:15:57,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:15:57,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:15:57,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:15:57,669 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 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) [2021-10-16 02:16:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:16:00,552 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-10-16 02:16:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 02:16:00,554 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 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 14 [2021-10-16 02:16:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:16:00,555 INFO L225 Difference]: With dead ends: 76 [2021-10-16 02:16:00,555 INFO L226 Difference]: Without dead ends: 65 [2021-10-16 02:16:00,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2328.5ms TimeCoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2021-10-16 02:16:00,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-10-16 02:16:00,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2021-10-16 02:16:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.22) internal successors, (61), 54 states have internal predecessors, (61), 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) [2021-10-16 02:16:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2021-10-16 02:16:00,567 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 14 [2021-10-16 02:16:00,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:16:00,568 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2021-10-16 02:16:00,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 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) [2021-10-16 02:16:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2021-10-16 02:16:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:16:00,569 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:16:00,569 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-16 02:16:00,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:16:00,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:16:00,784 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:16:00,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:16:00,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 1 times [2021-10-16 02:16:00,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:16:00,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169829062] [2021-10-16 02:16:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:16:00,785 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:16:00,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:16:00,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:16:00,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:16:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:16:00,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:16:00,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:16:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:01,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:16:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:01,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:16:01,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169829062] [2021-10-16 02:16:01,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169829062] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:16:01,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1732448419] [2021-10-16 02:16:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:16:01,447 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:16:01,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:16:01,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:16:01,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-16 02:16:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:16:01,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:16:01,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:16:02,030 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:02,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:16:05,208 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 2 refuted. 7 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:05,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1732448419] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:16:05,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267045290] [2021-10-16 02:16:05,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:16:05,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:16:05,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:16:05,225 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:16:05,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-16 02:16:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:16:05,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 02:16:05,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:16:05,738 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:05,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:16:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 2 refuted. 7 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:10,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267045290] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:16:10,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:16:10,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 8, 8] total 22 [2021-10-16 02:16:10,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325253194] [2021-10-16 02:16:10,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-16 02:16:10,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:16:10,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-16 02:16:10,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=375, Unknown=3, NotChecked=0, Total=462 [2021-10-16 02:16:10,763 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 22 states have internal predecessors, (92), 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) [2021-10-16 02:16:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:16:11,864 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2021-10-16 02:16:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 02:16:11,865 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 22 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-16 02:16:11,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:16:11,866 INFO L225 Difference]: With dead ends: 75 [2021-10-16 02:16:11,866 INFO L226 Difference]: Without dead ends: 40 [2021-10-16 02:16:11,867 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 8238.4ms TimeCoverageRelationStatistics Valid=274, Invalid=779, Unknown=3, NotChecked=0, Total=1056 [2021-10-16 02:16:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-16 02:16:11,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-10-16 02:16:11,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 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) [2021-10-16 02:16:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-10-16 02:16:11,882 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 25 [2021-10-16 02:16:11,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:16:11,883 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-10-16 02:16:11,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.181818181818182) internal successors, (92), 22 states have internal predecessors, (92), 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) [2021-10-16 02:16:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-10-16 02:16:11,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 02:16:11,884 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:16:11,885 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:16:11,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:16:12,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:16:12,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:16:12,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:16:12,500 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:16:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:16:12,500 INFO L82 PathProgramCache]: Analyzing trace with hash 115055918, now seen corresponding path program 1 times [2021-10-16 02:16:12,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:16:12,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845985065] [2021-10-16 02:16:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:16:12,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:16:12,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:16:12,502 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:16:12,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 02:16:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:16:12,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 02:16:12,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:16:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:13,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:16:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:20,770 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:16:20,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845985065] [2021-10-16 02:16:20,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845985065] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:16:20,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [982091420] [2021-10-16 02:16:20,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:16:20,771 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:16:20,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:16:20,777 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:16:20,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-16 02:16:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:16:21,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-16 02:16:21,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:16:22,095 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:22,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:16:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:26,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [982091420] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:16:26,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190471664] [2021-10-16 02:16:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:16:26,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:16:26,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:16:26,652 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:16:26,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-16 02:16:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:16:27,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-16 02:16:27,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:16:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:27,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:16:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:16:40,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190471664] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:16:40,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:16:40,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6, 7, 10, 10] total 23 [2021-10-16 02:16:40,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25561386] [2021-10-16 02:16:40,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 02:16:40,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:16:40,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 02:16:40,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2021-10-16 02:16:40,175 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 23 states have internal predecessors, (99), 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) [2021-10-16 02:16:59,321 WARN L207 SmtUtils]: Spent 16.68 s on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-10-16 02:17:16,218 WARN L207 SmtUtils]: Spent 14.71 s on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2021-10-16 02:17:16,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:17:16,298 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-10-16 02:17:16,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:17:16,314 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 23 states have internal predecessors, (99), 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 [2021-10-16 02:17:16,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:17:16,315 INFO L225 Difference]: With dead ends: 44 [2021-10-16 02:17:16,315 INFO L226 Difference]: Without dead ends: 33 [2021-10-16 02:17:16,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 46386.1ms TimeCoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870 [2021-10-16 02:17:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-16 02:17:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-16 02:17:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.0) internal successors, (32), 32 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2021-10-16 02:17:16,322 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 27 [2021-10-16 02:17:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:17:16,322 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2021-10-16 02:17:16,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.304347826086956) internal successors, (99), 23 states have internal predecessors, (99), 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) [2021-10-16 02:17:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2021-10-16 02:17:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:17:16,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:17:16,324 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:17:16,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2021-10-16 02:17:16,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:17:16,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:17:16,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:17:16,939 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-16 02:17:16,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:17:16,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1492250324, now seen corresponding path program 1 times [2021-10-16 02:17:16,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:17:16,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443519390] [2021-10-16 02:17:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:17:16,940 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:17:16,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:17:16,941 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:17:16,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:17:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:17:17,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 02:17:17,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:17:18,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:18,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:17:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:26,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:17:26,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443519390] [2021-10-16 02:17:26,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443519390] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:17:26,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [145007705] [2021-10-16 02:17:26,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:17:26,317 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:17:26,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:17:26,323 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:17:26,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-16 02:17:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:17:26,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-16 02:17:26,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:17:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:28,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:17:35,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:35,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [145007705] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:17:35,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481515465] [2021-10-16 02:17:35,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:17:35,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:17:35,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:17:35,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:17:35,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-16 02:17:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:17:35,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-16 02:17:35,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:17:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:37,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:17:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:53,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481515465] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:17:53,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:17:53,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 8, 14, 13] total 39 [2021-10-16 02:17:53,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491635135] [2021-10-16 02:17:53,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-16 02:17:53,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:17:53,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-16 02:17:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1227, Unknown=0, NotChecked=0, Total=1482 [2021-10-16 02:17:53,495 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand has 39 states, 39 states have (on average 4.17948717948718) internal successors, (163), 39 states have internal predecessors, (163), 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) [2021-10-16 02:17:56,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:17:56,654 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2021-10-16 02:17:56,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:17:56,657 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.17948717948718) internal successors, (163), 39 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-16 02:17:56,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:17:56,657 INFO L225 Difference]: With dead ends: 33 [2021-10-16 02:17:56,657 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:17:56,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 146 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 22674.0ms TimeCoverageRelationStatistics Valid=387, Invalid=1593, Unknown=0, NotChecked=0, Total=1980 [2021-10-16 02:17:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:17:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:17:56,659 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) [2021-10-16 02:17:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:17:56,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-10-16 02:17:56,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:17:56,660 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:17:56,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.17948717948718) internal successors, (163), 39 states have internal predecessors, (163), 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) [2021-10-16 02:17:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:17:56,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:17:56,663 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:56,663 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:56,664 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:56,664 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:56,664 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:56,664 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:56,664 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:56,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-10-16 02:17:56,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:17:57,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-16 02:17:57,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:17:57,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:17:57,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:17:57,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:18:03,735 INFO L860 garLoopResultBuilder]: At program point L60(lines 22 61) the Hoare annotation is: true [2021-10-16 02:18:03,735 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:18:03,735 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-10-16 02:18:03,735 INFO L857 garLoopResultBuilder]: For program point L52-2(lines 22 61) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point L44-1(lines 44 56) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:18:03,736 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:18:03,737 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (bvsle ULTIMATE.start_main_~A~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (.cse3 (= ULTIMATE.start_main_~B~0 (_ bv1 32))) (.cse4 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 (= ULTIMATE.start_main_~q~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~B~0) (= ULTIMATE.start_main_~p~0 (_ bv1 32)) (bvsge ULTIMATE.start_main_~A~0 (_ bv0 32))) (and .cse0 .cse1 .cse2 .cse3 (= (_ bv2 32) ULTIMATE.start_main_~p~0) (bvsge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~B~0) .cse4 (= ULTIMATE.start_main_~A~0 (bvadd (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~B~0) ULTIMATE.start_main_~r~0)) (= ULTIMATE.start_main_~d~0 (bvmul (_ bv2 32) ULTIMATE.start_main_~B~0))))) [2021-10-16 02:18:03,737 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:18:03,737 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (bvsle ULTIMATE.start_main_~A~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (.cse3 (= ULTIMATE.start_main_~B~0 (_ bv1 32))) (.cse4 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 (= ULTIMATE.start_main_~q~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~B~0) (= ULTIMATE.start_main_~p~0 (_ bv1 32)) (bvsge ULTIMATE.start_main_~A~0 (_ bv0 32))) (and .cse0 .cse1 .cse2 .cse3 (= (_ bv2 32) ULTIMATE.start_main_~p~0) (bvsge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~B~0) .cse4 (= ULTIMATE.start_main_~A~0 (bvadd (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~B~0) ULTIMATE.start_main_~r~0)) (= ULTIMATE.start_main_~d~0 (bvmul (_ bv2 32) ULTIMATE.start_main_~B~0))))) [2021-10-16 02:18:03,737 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:18:03,738 INFO L853 garLoopResultBuilder]: At program point L15-8(line 38) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (bvsle ULTIMATE.start_main_~A~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (.cse3 (= ULTIMATE.start_main_~B~0 (_ bv1 32))) (.cse4 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 (= ULTIMATE.start_main_~q~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~B~0) (= ULTIMATE.start_main_~p~0 (_ bv1 32)) (bvsge ULTIMATE.start_main_~A~0 (_ bv0 32))) (and .cse0 .cse1 .cse2 .cse3 (= (_ bv2 32) ULTIMATE.start_main_~p~0) (bvsge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~B~0) .cse4 (= ULTIMATE.start_main_~A~0 (bvadd (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~B~0) ULTIMATE.start_main_~r~0)) (= ULTIMATE.start_main_~d~0 (bvmul (_ bv2 32) ULTIMATE.start_main_~B~0))))) [2021-10-16 02:18:03,738 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:18:03,738 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (.cse6 (bvsge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~B~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse7 (bvsle ULTIMATE.start_main_~A~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start_main_~B~0 (_ bv1 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~B~0)) (.cse5 (= ULTIMATE.start_main_~p~0 (_ bv1 32)))) (or (and .cse0 (= ULTIMATE.start_main_~q~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 .cse5 (bvsge ULTIMATE.start_main_~A~0 (_ bv0 32)) (not .cse6)) (and .cse0 .cse7 .cse1 .cse2 (= (_ bv2 32) ULTIMATE.start_main_~p~0) .cse6 .cse3 (= ULTIMATE.start_main_~A~0 (bvadd (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~B~0) ULTIMATE.start_main_~r~0)) (= ULTIMATE.start_main_~d~0 (bvmul (_ bv2 32) ULTIMATE.start_main_~B~0))) (and .cse0 .cse7 (= (bvadd ULTIMATE.start_main_~A~0 (bvneg (bvsdiv (bvmul ULTIMATE.start_main_~B~0 (_ bv2 32)) (_ bv2 32)))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 (bvsge ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~B~0) (= (bvadd ULTIMATE.start_main_~r~0 (bvmul ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~q~0) (bvmul ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~p~0) (bvneg ULTIMATE.start_main_~d~0)) ULTIMATE.start_main_~A~0) .cse5))) [2021-10-16 02:18:03,738 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:18:03,739 INFO L853 garLoopResultBuilder]: At program point L15-14(line 48) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (.cse6 (bvsge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~B~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse7 (bvsle ULTIMATE.start_main_~A~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start_main_~B~0 (_ bv1 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~B~0)) (.cse5 (= ULTIMATE.start_main_~p~0 (_ bv1 32)))) (or (and .cse0 (= ULTIMATE.start_main_~q~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 .cse5 (bvsge ULTIMATE.start_main_~A~0 (_ bv0 32)) (not .cse6)) (and .cse0 .cse7 .cse1 .cse2 (= (_ bv2 32) ULTIMATE.start_main_~p~0) .cse6 .cse3 (= ULTIMATE.start_main_~A~0 (bvadd (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~B~0) ULTIMATE.start_main_~r~0)) (= ULTIMATE.start_main_~d~0 (bvmul (_ bv2 32) ULTIMATE.start_main_~B~0))) (and .cse0 .cse7 (= (bvadd ULTIMATE.start_main_~A~0 (bvneg (bvsdiv (bvmul ULTIMATE.start_main_~B~0 (_ bv2 32)) (_ bv2 32)))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 (bvsge ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~B~0) (= (bvadd ULTIMATE.start_main_~r~0 (bvmul ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~q~0) (bvmul ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~p~0) (bvneg ULTIMATE.start_main_~d~0)) ULTIMATE.start_main_~A~0) .cse5))) [2021-10-16 02:18:03,739 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:18:03,739 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:18:03,739 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~B~0 (_ bv1 32)) (= ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~B~0) (= ULTIMATE.start_main_~p~0 (_ bv1 32))) [2021-10-16 02:18:03,739 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-16 02:18:03,740 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-16 02:18:03,740 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:18:03,740 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:18:03,740 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:18:03,740 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:18:03,740 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:18:03,741 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:18:03,741 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:18:03,741 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-16 02:18:03,741 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:18:03,741 INFO L853 garLoopResultBuilder]: At program point L34-2(lines 34 42) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (bvsle ULTIMATE.start_main_~A~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (.cse3 (= ULTIMATE.start_main_~B~0 (_ bv1 32)))) (or (and .cse0 (= ULTIMATE.start_main_~q~0 (_ bv0 32)) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~B~0) (= ULTIMATE.start_main_~p~0 (_ bv1 32)) (bvsge ULTIMATE.start_main_~A~0 (_ bv0 32))) (and .cse0 .cse1 .cse2 .cse3 (= (_ bv2 32) ULTIMATE.start_main_~p~0) (bvsge ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~B~0) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (= ULTIMATE.start_main_~A~0 (bvadd (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~B~0) ULTIMATE.start_main_~r~0)) (= ULTIMATE.start_main_~d~0 (bvmul (_ bv2 32) ULTIMATE.start_main_~B~0))))) [2021-10-16 02:18:03,741 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-16 02:18:03,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:18:03,750 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) [2021-10-16 02:18:03,753 INFO L168 Benchmark]: Toolchain (without parser) took 134023.77 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 31.2 MB in the beginning and 48.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:03,754 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:03,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.77 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.0 MB in the beginning and 52.7 MB in the end (delta: -21.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:03,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 69.2 MB. Free memory was 52.5 MB in the beginning and 50.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:03,755 INFO L168 Benchmark]: Boogie Preprocessor took 55.55 ms. Allocated memory is still 69.2 MB. Free memory was 50.9 MB in the beginning and 49.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:18:03,756 INFO L168 Benchmark]: RCFGBuilder took 535.44 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 38.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:03,756 INFO L168 Benchmark]: TraceAbstraction took 133005.37 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 38.3 MB in the beginning and 48.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:18:03,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.77 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.0 MB in the beginning and 52.7 MB in the end (delta: -21.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.50 ms. Allocated memory is still 69.2 MB. Free memory was 52.5 MB in the beginning and 50.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.55 ms. Allocated memory is still 69.2 MB. Free memory was 50.9 MB in the beginning and 49.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 535.44 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 38.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 133005.37 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 38.3 MB in the beginning and 48.8 MB in the end (delta: -10.6 MB). Peak memory consumption was 37.0 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: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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, 39 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 132930.1ms, OverallIterations: 8, TraceHistogramMax: 3, EmptinessCheckTime: 30.2ms, AutomataDifference: 46700.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 6456.6ms, InitialAbstractionConstructionTime: 8.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 156 SDtfs, 626 SDslu, 302 SDs, 0 SdLazy, 854 SolverSat, 470 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 7917.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 616 GetRequests, 473 SyntacticMatches, 4 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 79968.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=4, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 84.7ms AutomataMinimizationTime, 8 MinimizatonAttempts, 69 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 27 NumberOfFragments, 481 HoareAnnotationTreeSize, 9 FomulaSimplifications, 941 FormulaSimplificationTreeSizeReduction, 205.2ms HoareSimplificationTime, 9 FomulaSimplificationsInter, 377 FormulaSimplificationTreeSizeReductionInter, 6242.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 105.8ms SsaConstructionTime, 861.9ms SatisfiabilityAnalysisTime, 73507.9ms InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 572 ConstructedInterpolants, 0 QuantifiedInterpolants, 7013 SizeOfPredicates, 94 NumberOfNonLiveVariables, 810 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 28 InterpolantComputations, 10 PerfectInterpolantSequences, 44/240 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 7 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. [2021-10-16 02:18:03,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c79943e-9324-4fb5-b059-c512d9954d2e/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...