./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI --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 c7ed30bee3fda0a70051912ec28c31301bd11923 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:26,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:26,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:26,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:26,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:26,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:26,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:26,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:26,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:26,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:26,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:26,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:26,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:26,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:26,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:26,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:26,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:26,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:26,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:26,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:26,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:26,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:26,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:26,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:26,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:26,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:26,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:26,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:26,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:26,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:26,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:26,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:26,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:26,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:26,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:26,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:26,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:26,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:26,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:26,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:26,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:26,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:26,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:26,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:26,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:26,818 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:26,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:26,819 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:26,819 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:26,819 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:26,820 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:26,820 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:26,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:26,821 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:26,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:26,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:26,822 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:26,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:26,823 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:26,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:26,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:26,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:26,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:26,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:26,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:26,825 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:26,825 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:26,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:26,826 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:26,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:26,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:26,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:26,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:26,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:26,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:26,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:26,830 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:26,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:26,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:26,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:26,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:26,831 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_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7ed30bee3fda0a70051912ec28c31301bd11923 [2021-10-11 02:32:27,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:27,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:27,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:27,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:27,144 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:27,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c [2021-10-11 02:32:27,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/data/fedee0380/a7370b1f000d489696965b5711d723a9/FLAGe803ce962 [2021-10-11 02:32:27,654 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:27,654 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c [2021-10-11 02:32:27,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/data/fedee0380/a7370b1f000d489696965b5711d723a9/FLAGe803ce962 [2021-10-11 02:32:27,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/data/fedee0380/a7370b1f000d489696965b5711d723a9 [2021-10-11 02:32:27,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:27,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:27,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:27,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:27,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:27,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b6398c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27, skipping insertion in model container [2021-10-11 02:32:27,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:27,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:27,877 WARN L226 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_cb439a39-4309-4f21-a2d1-03f47caf80cf/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c[538,551] [2021-10-11 02:32:27,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:27,903 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:27,916 WARN L226 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_cb439a39-4309-4f21-a2d1-03f47caf80cf/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound1.c[538,551] [2021-10-11 02:32:27,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:27,937 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:27,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27 WrapperNode [2021-10-11 02:32:27,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:27,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:27,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:27,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:27,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:27,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:27,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:27,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:27,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... [2021-10-11 02:32:27,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:27,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:27,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:28,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:28,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:28,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:28,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:28,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:28,596 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-11 02:32:28,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:28 BoogieIcfgContainer [2021-10-11 02:32:28,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:28,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:28,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:28,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:28,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:27" (1/3) ... [2021-10-11 02:32:28,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27efc578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:28, skipping insertion in model container [2021-10-11 02:32:28,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:27" (2/3) ... [2021-10-11 02:32:28,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27efc578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:28, skipping insertion in model container [2021-10-11 02:32:28,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:28" (3/3) ... [2021-10-11 02:32:28,607 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound1.c [2021-10-11 02:32:28,621 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:28,625 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-10-11 02:32:28,636 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-11 02:32:28,661 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:28,661 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:28,661 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:28,661 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:28,661 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:28,662 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:28,662 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:28,662 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2021-10-11 02:32:28,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:32:28,699 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:28,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:32:28,701 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:28,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:28,706 INFO L82 PathProgramCache]: Analyzing trace with hash 155587567, now seen corresponding path program 1 times [2021-10-11 02:32:28,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:28,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878315304] [2021-10-11 02:32:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:28,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:28,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878315304] [2021-10-11 02:32:28,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:28,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:28,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100296805] [2021-10-11 02:32:28,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:28,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:28,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:28,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:28,945 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 4 states. [2021-10-11 02:32:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:29,110 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2021-10-11 02:32:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:29,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 02:32:29,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:29,124 INFO L225 Difference]: With dead ends: 92 [2021-10-11 02:32:29,125 INFO L226 Difference]: Without dead ends: 54 [2021-10-11 02:32:29,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:29,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-11 02:32:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 31. [2021-10-11 02:32:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:32:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-10-11 02:32:29,176 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 5 [2021-10-11 02:32:29,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:29,177 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-10-11 02:32:29,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:29,177 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-10-11 02:32:29,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:29,178 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:29,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:29,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:29,179 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:29,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:29,182 INFO L82 PathProgramCache]: Analyzing trace with hash -804784526, now seen corresponding path program 1 times [2021-10-11 02:32:29,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:29,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002693608] [2021-10-11 02:32:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:29,228 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:32:29,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760832770] [2021-10-11 02:32:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:29,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:32:29,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:29,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:29,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:29,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002693608] [2021-10-11 02:32:29,387 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:32:29,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760832770] [2021-10-11 02:32:29,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:29,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-11 02:32:29,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290276314] [2021-10-11 02:32:29,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:29,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:29,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:29,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:29,401 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2021-10-11 02:32:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:29,434 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2021-10-11 02:32:29,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:29,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:32:29,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:29,436 INFO L225 Difference]: With dead ends: 51 [2021-10-11 02:32:29,436 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 02:32:29,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 02:32:29,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 02:32:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:32:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-10-11 02:32:29,451 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 7 [2021-10-11 02:32:29,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:29,451 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-10-11 02:32:29,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:29,452 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-10-11 02:32:29,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:29,452 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:29,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:29,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:32:29,653 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:29,653 INFO L82 PathProgramCache]: Analyzing trace with hash -804047694, now seen corresponding path program 1 times [2021-10-11 02:32:29,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:29,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082426778] [2021-10-11 02:32:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:29,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082426778] [2021-10-11 02:32:29,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:29,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:29,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162026437] [2021-10-11 02:32:29,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:29,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:29,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:29,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:29,777 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 4 states. [2021-10-11 02:32:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:29,845 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2021-10-11 02:32:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:29,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:32:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:29,847 INFO L225 Difference]: With dead ends: 51 [2021-10-11 02:32:29,847 INFO L226 Difference]: Without dead ends: 49 [2021-10-11 02:32:29,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:29,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-11 02:32:29,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 31. [2021-10-11 02:32:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:32:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-10-11 02:32:29,854 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 7 [2021-10-11 02:32:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:29,854 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-10-11 02:32:29,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-10-11 02:32:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:29,855 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:29,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:29,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:32:29,856 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:29,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:29,856 INFO L82 PathProgramCache]: Analyzing trace with hash 404435477, now seen corresponding path program 1 times [2021-10-11 02:32:29,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:29,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558831218] [2021-10-11 02:32:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:29,869 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:32:29,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570927544] [2021-10-11 02:32:29,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:29,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 02:32:29,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:29,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:29,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:30,042 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2021-10-11 02:32:30,042 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:32:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:30,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558831218] [2021-10-11 02:32:30,065 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:32:30,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570927544] [2021-10-11 02:32:30,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:30,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-11 02:32:30,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649929228] [2021-10-11 02:32:30,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:32:30,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:30,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:32:30,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:32:30,068 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 10 states. [2021-10-11 02:32:30,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:30,321 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2021-10-11 02:32:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-11 02:32:30,322 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2021-10-11 02:32:30,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:30,323 INFO L225 Difference]: With dead ends: 95 [2021-10-11 02:32:30,323 INFO L226 Difference]: Without dead ends: 71 [2021-10-11 02:32:30,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:32:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-11 02:32:30,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 48. [2021-10-11 02:32:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-10-11 02:32:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2021-10-11 02:32:30,334 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 9 [2021-10-11 02:32:30,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:30,335 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2021-10-11 02:32:30,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:32:30,335 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2021-10-11 02:32:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:32:30,336 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:30,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:30,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:30,549 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:30,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:30,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1567670847, now seen corresponding path program 1 times [2021-10-11 02:32:30,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:30,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777694780] [2021-10-11 02:32:30,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:30,563 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:32:30,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32312711] [2021-10-11 02:32:30,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:30,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:30,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:30,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:30,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777694780] [2021-10-11 02:32:30,655 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:32:30,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32312711] [2021-10-11 02:32:30,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:30,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-11 02:32:30,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613597688] [2021-10-11 02:32:30,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:30,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:30,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:30,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:30,658 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 5 states. [2021-10-11 02:32:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:30,682 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2021-10-11 02:32:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:30,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:32:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:30,683 INFO L225 Difference]: With dead ends: 58 [2021-10-11 02:32:30,683 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 02:32:30,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 02:32:30,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-11 02:32:30,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:32:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-10-11 02:32:30,690 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 13 [2021-10-11 02:32:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:30,690 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-11 02:32:30,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-10-11 02:32:30,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:32:30,691 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:30,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:30,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:30,914 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:30,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:30,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1353129295, now seen corresponding path program 1 times [2021-10-11 02:32:30,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:30,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548485806] [2021-10-11 02:32:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:30,936 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:32:30,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403591175] [2021-10-11 02:32:30,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:30,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:32:30,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:31,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:31,058 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2021-10-11 02:32:31,058 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:32:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:31,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548485806] [2021-10-11 02:32:31,067 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:32:31,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403591175] [2021-10-11 02:32:31,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:31,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-11 02:32:31,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775623139] [2021-10-11 02:32:31,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:32:31,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:31,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:32:31,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:31,069 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 8 states. [2021-10-11 02:32:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:31,070 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-10-11 02:32:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:31,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2021-10-11 02:32:31,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:31,071 INFO L225 Difference]: With dead ends: 31 [2021-10-11 02:32:31,071 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:32:31,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:31,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:32:31,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:32:31,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:32:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:32:31,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-11 02:32:31,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:31,073 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:32:31,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:32:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:32:31,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:32:31,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:31,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:32:31,330 INFO L258 CegarLoopResult]: At program point L35-3(lines 35 43) the Hoare annotation is: false [2021-10-11 02:32:31,330 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:32:31,335 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:32:31,335 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:32:31,335 INFO L262 CegarLoopResult]: For program point L53-2(lines 23 62) no Hoare annotation was computed. [2021-10-11 02:32:31,335 INFO L262 CegarLoopResult]: For program point L45(lines 45 57) no Hoare annotation was computed. [2021-10-11 02:32:31,335 INFO L262 CegarLoopResult]: For program point L45-2(lines 45 57) no Hoare annotation was computed. [2021-10-11 02:32:31,335 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L258 CegarLoopResult]: At program point L15-2(lines 14 20) the Hoare annotation is: false [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L258 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: false [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L258 CegarLoopResult]: At program point L15-8(line 39) the Hoare annotation is: false [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L258 CegarLoopResult]: At program point L15-11(lines 14 20) the Hoare annotation is: false [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:32:31,336 INFO L258 CegarLoopResult]: At program point L15-14(line 49) the Hoare annotation is: false [2021-10-11 02:32:31,336 INFO L262 CegarLoopResult]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L258 CegarLoopResult]: At program point L15-17(lines 14 20) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~d~0 (mod ULTIMATE.start_main_~B~0 4294967296)) (= ULTIMATE.start_main_~p~0 1)) [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L258 CegarLoopResult]: At program point L15-20(lines 14 20) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:32:31,337 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:32:31,338 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:32:31,338 INFO L262 CegarLoopResult]: For program point L35-1(lines 35 43) no Hoare annotation was computed. [2021-10-11 02:32:31,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:31 BoogieIcfgContainer [2021-10-11 02:32:31,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:31,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:31,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:31,370 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:31,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:28" (3/4) ... [2021-10-11 02:32:31,373 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:32:31,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-11 02:32:31,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:32:31,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:32:31,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:31,428 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb439a39-4309-4f21-a2d1-03f47caf80cf/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:31,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:31,430 INFO L168 Benchmark]: Toolchain (without parser) took 3749.38 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 57.6 MB in the beginning and 90.9 MB in the end (delta: -33.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:31,430 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 63.7 MB in the beginning and 63.7 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:31,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.97 ms. Allocated memory is still 92.3 MB. Free memory was 57.4 MB in the beginning and 67.3 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:31,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.97 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 65.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:31,431 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 ms. Allocated memory is still 92.3 MB. Free memory was 65.7 MB in the beginning and 64.7 MB in the end (delta: 959.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:31,432 INFO L168 Benchmark]: RCFGBuilder took 599.72 ms. Allocated memory is still 92.3 MB. Free memory was 64.7 MB in the beginning and 42.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:31,432 INFO L168 Benchmark]: TraceAbstraction took 2768.74 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 41.7 MB in the beginning and 94.0 MB in the end (delta: -52.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:31,433 INFO L168 Benchmark]: Witness Printer took 58.67 ms. Allocated memory is still 119.5 MB. Free memory was 94.0 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:31,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 63.7 MB in the beginning and 63.7 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.97 ms. Allocated memory is still 92.3 MB. Free memory was 57.4 MB in the beginning and 67.3 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.97 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 65.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.00 ms. Allocated memory is still 92.3 MB. Free memory was 65.7 MB in the beginning and 64.7 MB in the end (delta: 959.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 599.72 ms. Allocated memory is still 92.3 MB. Free memory was 64.7 MB in the beginning and 42.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2768.74 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 41.7 MB in the beginning and 94.0 MB in the end (delta: -52.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * Witness Printer took 58.67 ms. Allocated memory is still 119.5 MB. Free memory was 94.0 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (!(0 == cond) && d == B % 4294967296) && p == 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 133 SDtfs, 215 SDslu, 190 SDs, 0 SdLazy, 139 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 64 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 12 NumberOfFragments, 23 HoareAnnotationTreeSize, 8 FomulaSimplifications, 118 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 3892 SizeOfPredicates, 16 NumberOfNonLiveVariables, 289 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...