./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/egcd2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95396db54d6803df90b045d200d759c42b2c22fc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 19:07:20,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:07:20,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:07:20,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:07:20,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:07:20,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:07:20,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:07:20,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:07:20,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:07:20,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:07:20,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:07:20,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:07:20,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:07:20,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:07:20,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:07:20,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:07:20,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:07:20,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:07:20,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:07:20,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:07:20,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:07:20,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:07:20,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:07:20,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:07:20,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:07:20,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:07:20,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:07:20,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:07:20,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:07:20,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:07:20,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:07:20,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:07:20,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:07:20,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:07:20,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:07:20,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:07:20,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:07:20,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:07:20,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:07:20,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:07:20,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:07:20,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:07:20,129 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:07:20,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:07:20,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:07:20,131 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:07:20,131 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:07:20,131 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:07:20,131 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:07:20,131 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:07:20,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:07:20,132 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:07:20,132 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:07:20,132 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:07:20,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:07:20,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:07:20,133 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:07:20,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:07:20,133 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:07:20,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:07:20,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:07:20,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:07:20,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:07:20,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:07:20,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:07:20,135 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:07:20,135 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:07:20,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:07:20,135 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:07:20,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:07:20,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:07:20,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:07:20,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:07:20,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:07:20,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:07:20,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:07:20,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:07:20,137 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:07:20,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:07:20,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:07:20,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:07:20,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:07:20,138 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan 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(__VERIFIER_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 -> 95396db54d6803df90b045d200d759c42b2c22fc [2019-12-07 19:07:20,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:07:20,247 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:07:20,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:07:20,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:07:20,251 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:07:20,251 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/../../sv-benchmarks/c/nla-digbench/egcd2.c [2019-12-07 19:07:20,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/data/d10acf4c0/a49257a1aae045138b3a19eb4326308e/FLAG17b1dd0fc [2019-12-07 19:07:20,600 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:07:20,600 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/sv-benchmarks/c/nla-digbench/egcd2.c [2019-12-07 19:07:20,604 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/data/d10acf4c0/a49257a1aae045138b3a19eb4326308e/FLAG17b1dd0fc [2019-12-07 19:07:20,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/data/d10acf4c0/a49257a1aae045138b3a19eb4326308e [2019-12-07 19:07:20,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:07:20,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:07:20,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:07:20,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:07:20,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:07:20,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160492d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20, skipping insertion in model container [2019-12-07 19:07:20,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:07:20,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:07:20,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:07:20,743 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:07:20,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:07:20,800 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:07:20,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20 WrapperNode [2019-12-07 19:07:20,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:07:20,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:07:20,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:07:20,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:07:20,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:07:20,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:07:20,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:07:20,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:07:20,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... [2019-12-07 19:07:20,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:07:20,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:07:20,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:07:20,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:07:20,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/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 [2019-12-07 19:07:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:07:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:07:21,023 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:07:21,023 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 19:07:21,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:07:21 BoogieIcfgContainer [2019-12-07 19:07:21,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:07:21,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:07:21,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:07:21,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:07:21,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:07:20" (1/3) ... [2019-12-07 19:07:21,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa13cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:07:21, skipping insertion in model container [2019-12-07 19:07:21,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:07:20" (2/3) ... [2019-12-07 19:07:21,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa13cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:07:21, skipping insertion in model container [2019-12-07 19:07:21,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:07:21" (3/3) ... [2019-12-07 19:07:21,029 INFO L109 eAbstractionObserver]: Analyzing ICFG egcd2.c [2019-12-07 19:07:21,035 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:07:21,039 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-12-07 19:07:21,046 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-07 19:07:21,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:07:21,061 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:07:21,061 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:07:21,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:07:21,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:07:21,061 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:07:21,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:07:21,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:07:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-12-07 19:07:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 19:07:21,075 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:21,075 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 19:07:21,076 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:21,079 INFO L82 PathProgramCache]: Analyzing trace with hash 32849638, now seen corresponding path program 1 times [2019-12-07 19:07:21,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:21,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629113821] [2019-12-07 19:07:21,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:21,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629113821] [2019-12-07 19:07:21,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:07:21,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 19:07:21,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302048548] [2019-12-07 19:07:21,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:07:21,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:21,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:07:21,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:07:21,180 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-12-07 19:07:21,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:21,193 INFO L93 Difference]: Finished difference Result 61 states and 79 transitions. [2019-12-07 19:07:21,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:07:21,193 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-12-07 19:07:21,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:21,199 INFO L225 Difference]: With dead ends: 61 [2019-12-07 19:07:21,200 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 19:07:21,202 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:07:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 19:07:21,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 19:07:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 19:07:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-12-07 19:07:21,224 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 5 [2019-12-07 19:07:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:21,224 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-12-07 19:07:21,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:07:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-12-07 19:07:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 19:07:21,225 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:21,225 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 19:07:21,225 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:21,225 INFO L82 PathProgramCache]: Analyzing trace with hash 925834863, now seen corresponding path program 1 times [2019-12-07 19:07:21,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:21,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054236448] [2019-12-07 19:07:21,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:21,233 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:21,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469791123] [2019-12-07 19:07:21,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/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 [2019-12-07 19:07:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:21,260 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 19:07:21,263 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:21,281 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:21,286 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054236448] [2019-12-07 19:07:21,286 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:21,286 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469791123] [2019-12-07 19:07:21,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:07:21,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:07:21,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482255723] [2019-12-07 19:07:21,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:07:21,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:21,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:07:21,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:07:21,288 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 3 states. [2019-12-07 19:07:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:21,315 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2019-12-07 19:07:21,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:07:21,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 19:07:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:21,316 INFO L225 Difference]: With dead ends: 57 [2019-12-07 19:07:21,316 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 19:07:21,317 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:07:21,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 19:07:21,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 31. [2019-12-07 19:07:21,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 19:07:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-12-07 19:07:21,321 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 6 [2019-12-07 19:07:21,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:21,321 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-12-07 19:07:21,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:07:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-12-07 19:07:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 19:07:21,322 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:21,322 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 19:07:21,523 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:21,523 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:21,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:21,524 INFO L82 PathProgramCache]: Analyzing trace with hash 925838837, now seen corresponding path program 1 times [2019-12-07 19:07:21,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:21,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674684781] [2019-12-07 19:07:21,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:21,547 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:21,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778231327] [2019-12-07 19:07:21,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/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 [2019-12-07 19:07:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:21,596 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 19:07:21,597 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:21,609 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:21,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674684781] [2019-12-07 19:07:21,625 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:21,626 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778231327] [2019-12-07 19:07:21,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:07:21,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-12-07 19:07:21,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621334421] [2019-12-07 19:07:21,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:07:21,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:21,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:07:21,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:07:21,627 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-12-07 19:07:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:21,693 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2019-12-07 19:07:21,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:07:21,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-12-07 19:07:21,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:21,694 INFO L225 Difference]: With dead ends: 50 [2019-12-07 19:07:21,694 INFO L226 Difference]: Without dead ends: 48 [2019-12-07 19:07:21,695 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 19:07:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-12-07 19:07:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2019-12-07 19:07:21,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 19:07:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2019-12-07 19:07:21,701 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 6 [2019-12-07 19:07:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:21,701 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2019-12-07 19:07:21,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:07:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-12-07 19:07:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 19:07:21,702 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:21,702 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:07:21,902 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:21,903 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:21,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:21,904 INFO L82 PathProgramCache]: Analyzing trace with hash 673048024, now seen corresponding path program 1 times [2019-12-07 19:07:21,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:21,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446038927] [2019-12-07 19:07:21,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:21,929 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:21,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215842881] [2019-12-07 19:07:21,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/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 [2019-12-07 19:07:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:21,970 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 19:07:21,971 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:21,987 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:21,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446038927] [2019-12-07 19:07:21,999 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:21,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215842881] [2019-12-07 19:07:21,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:07:22,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 19:07:22,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637178726] [2019-12-07 19:07:22,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:07:22,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:22,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:07:22,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:07:22,001 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 6 states. [2019-12-07 19:07:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:22,064 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2019-12-07 19:07:22,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:07:22,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-12-07 19:07:22,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:22,065 INFO L225 Difference]: With dead ends: 53 [2019-12-07 19:07:22,065 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 19:07:22,066 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-07 19:07:22,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 19:07:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2019-12-07 19:07:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 19:07:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-12-07 19:07:22,071 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 8 [2019-12-07 19:07:22,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:22,071 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2019-12-07 19:07:22,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 19:07:22,071 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2019-12-07 19:07:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 19:07:22,072 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:22,072 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:07:22,272 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:22,273 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:22,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:22,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1740754341, now seen corresponding path program 1 times [2019-12-07 19:07:22,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:22,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013621665] [2019-12-07 19:07:22,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:22,296 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:22,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549798032] [2019-12-07 19:07:22,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/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 [2019-12-07 19:07:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:22,366 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 19:07:22,367 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:22,382 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:22,403 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013621665] [2019-12-07 19:07:22,403 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:22,403 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549798032] [2019-12-07 19:07:22,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:07:22,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 19:07:22,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125697366] [2019-12-07 19:07:22,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:07:22,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:22,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:07:22,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:07:22,405 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 6 states. [2019-12-07 19:07:22,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:22,478 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2019-12-07 19:07:22,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 19:07:22,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 19:07:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:22,479 INFO L225 Difference]: With dead ends: 55 [2019-12-07 19:07:22,479 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 19:07:22,479 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-07 19:07:22,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 19:07:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2019-12-07 19:07:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 19:07:22,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2019-12-07 19:07:22,485 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 10 [2019-12-07 19:07:22,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:22,485 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2019-12-07 19:07:22,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 19:07:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2019-12-07 19:07:22,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 19:07:22,486 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:22,486 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:07:22,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:22,687 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:22,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:22,688 INFO L82 PathProgramCache]: Analyzing trace with hash -494183817, now seen corresponding path program 1 times [2019-12-07 19:07:22,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:22,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141283931] [2019-12-07 19:07:22,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:22,696 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:22,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928042978] [2019-12-07 19:07:22,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:22,755 INFO L264 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 19:07:22,757 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:22,804 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:22,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141283931] [2019-12-07 19:07:22,824 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:22,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928042978] [2019-12-07 19:07:22,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [950773771] [2019-12-07 19:07:22,840 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-12-07 19:07:22,840 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:07:22,844 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:07:22,848 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:07:22,849 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:07:23,045 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:07:23,267 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-12-07 19:07:23,485 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2019-12-07 19:07:23,660 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-12-07 19:07:28,469 WARN L192 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2019-12-07 19:07:28,545 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:28,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 19:07:28,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-12-07 19:07:28,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450310187] [2019-12-07 19:07:28,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 19:07:28,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:28,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 19:07:28,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2019-12-07 19:07:28,546 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 7 states. [2019-12-07 19:07:28,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:28,664 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-12-07 19:07:28,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 19:07:28,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-07 19:07:28,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:28,665 INFO L225 Difference]: With dead ends: 90 [2019-12-07 19:07:28,665 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 19:07:28,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2019-12-07 19:07:28,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 19:07:28,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 38. [2019-12-07 19:07:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 19:07:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2019-12-07 19:07:28,670 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 15 [2019-12-07 19:07:28,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:28,671 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2019-12-07 19:07:28,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 19:07:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-12-07 19:07:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 19:07:28,671 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:28,671 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:07:28,872 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:28,872 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:28,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:28,873 INFO L82 PathProgramCache]: Analyzing trace with hash 615409956, now seen corresponding path program 1 times [2019-12-07 19:07:28,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:28,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815275318] [2019-12-07 19:07:28,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:28,883 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:28,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49476713] [2019-12-07 19:07:28,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:28,927 INFO L264 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:07:28,928 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:28,938 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:28,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815275318] [2019-12-07 19:07:28,948 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:28,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49476713] [2019-12-07 19:07:28,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1731708306] [2019-12-07 19:07:28,949 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2019-12-07 19:07:28,949 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:07:28,950 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:07:28,950 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:07:28,950 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:07:29,139 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:07:29,877 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:29,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 19:07:29,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 19:07:29,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838665166] [2019-12-07 19:07:29,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:07:29,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:29,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:07:29,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2019-12-07 19:07:29,879 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 5 states. [2019-12-07 19:07:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:29,935 INFO L93 Difference]: Finished difference Result 130 states and 137 transitions. [2019-12-07 19:07:29,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:07:29,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-07 19:07:29,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:29,937 INFO L225 Difference]: With dead ends: 130 [2019-12-07 19:07:29,937 INFO L226 Difference]: Without dead ends: 122 [2019-12-07 19:07:29,937 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2019-12-07 19:07:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-12-07 19:07:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 80. [2019-12-07 19:07:29,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-07 19:07:29,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2019-12-07 19:07:29,946 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 96 transitions. Word has length 18 [2019-12-07 19:07:29,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:29,946 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 96 transitions. [2019-12-07 19:07:29,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:07:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 96 transitions. [2019-12-07 19:07:29,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 19:07:29,947 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:29,947 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:07:30,147 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:30,148 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:30,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1292544179, now seen corresponding path program 1 times [2019-12-07 19:07:30,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:30,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388636619] [2019-12-07 19:07:30,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:30,162 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:30,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327733101] [2019-12-07 19:07:30,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:30,217 INFO L264 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core [2019-12-07 19:07:30,218 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:30,237 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:30,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388636619] [2019-12-07 19:07:30,264 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:30,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327733101] [2019-12-07 19:07:30,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [931617647] [2019-12-07 19:07:30,265 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-12-07 19:07:30,265 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:07:30,265 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:07:30,265 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:07:30,265 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:07:30,328 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 11 iterations. Over-approximation may be very coarse. [2019-12-07 19:07:30,387 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:07:31,113 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:31,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 19:07:31,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-12-07 19:07:31,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603662286] [2019-12-07 19:07:31,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 19:07:31,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:31,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 19:07:31,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2019-12-07 19:07:31,114 INFO L87 Difference]: Start difference. First operand 80 states and 96 transitions. Second operand 8 states. [2019-12-07 19:07:31,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:31,873 INFO L93 Difference]: Finished difference Result 139 states and 168 transitions. [2019-12-07 19:07:31,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 19:07:31,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-12-07 19:07:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:31,875 INFO L225 Difference]: With dead ends: 139 [2019-12-07 19:07:31,875 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 19:07:31,876 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2019-12-07 19:07:31,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 19:07:31,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 124. [2019-12-07 19:07:31,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-12-07 19:07:31,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 153 transitions. [2019-12-07 19:07:31,887 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 153 transitions. Word has length 20 [2019-12-07 19:07:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:31,887 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 153 transitions. [2019-12-07 19:07:31,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 19:07:31,887 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 153 transitions. [2019-12-07 19:07:31,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 19:07:31,887 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:31,887 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:07:32,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:32,088 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:32,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:32,088 INFO L82 PathProgramCache]: Analyzing trace with hash -889251184, now seen corresponding path program 1 times [2019-12-07 19:07:32,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:32,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524805285] [2019-12-07 19:07:32,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:32,092 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:32,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230956483] [2019-12-07 19:07:32,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:32,116 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 27 conjunts are in the unsatisfiable core [2019-12-07 19:07:32,117 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:32,147 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:32,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524805285] [2019-12-07 19:07:32,185 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:32,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230956483] [2019-12-07 19:07:32,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1638809559] [2019-12-07 19:07:32,186 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-12-07 19:07:32,186 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:07:32,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:07:32,187 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:07:32,187 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:07:32,281 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:07:32,974 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2019-12-07 19:07:33,171 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2019-12-07 19:07:35,741 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:35,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 19:07:35,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2019-12-07 19:07:35,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35548072] [2019-12-07 19:07:35,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 19:07:35,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:35,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 19:07:35,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2019-12-07 19:07:35,742 INFO L87 Difference]: Start difference. First operand 124 states and 153 transitions. Second operand 10 states. [2019-12-07 19:07:36,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:36,414 INFO L93 Difference]: Finished difference Result 237 states and 290 transitions. [2019-12-07 19:07:36,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 19:07:36,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-12-07 19:07:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:36,415 INFO L225 Difference]: With dead ends: 237 [2019-12-07 19:07:36,415 INFO L226 Difference]: Without dead ends: 227 [2019-12-07 19:07:36,416 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=295, Invalid=1265, Unknown=0, NotChecked=0, Total=1560 [2019-12-07 19:07:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-12-07 19:07:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 146. [2019-12-07 19:07:36,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 19:07:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 179 transitions. [2019-12-07 19:07:36,428 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 179 transitions. Word has length 22 [2019-12-07 19:07:36,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:36,429 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 179 transitions. [2019-12-07 19:07:36,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 19:07:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 179 transitions. [2019-12-07 19:07:36,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 19:07:36,429 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:36,429 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:07:36,630 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:36,630 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:36,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:36,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1236394662, now seen corresponding path program 1 times [2019-12-07 19:07:36,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:36,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192024203] [2019-12-07 19:07:36,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:36,634 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:36,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159849298] [2019-12-07 19:07:36,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:36,658 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 37 conjunts are in the unsatisfiable core [2019-12-07 19:07:36,659 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:36,728 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:36,728 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:36,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192024203] [2019-12-07 19:07:36,809 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:36,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159849298] [2019-12-07 19:07:36,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2010966598] [2019-12-07 19:07:36,810 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2019-12-07 19:07:36,810 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:07:36,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:07:36,811 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:07:36,811 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:07:36,951 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 14 iterations. Over-approximation may be very coarse. [2019-12-07 19:07:36,961 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 14 iterations. Over-approximation may be very coarse. [2019-12-07 19:07:36,984 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:07:39,630 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 50 [2019-12-07 19:07:43,876 WARN L192 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-12-07 19:07:55,545 WARN L192 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2019-12-07 19:07:55,600 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:55,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 19:07:55,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2019-12-07 19:07:55,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096496122] [2019-12-07 19:07:55,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 19:07:55,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:07:55,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 19:07:55,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2019-12-07 19:07:55,601 INFO L87 Difference]: Start difference. First operand 146 states and 179 transitions. Second operand 14 states. [2019-12-07 19:07:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:07:57,778 INFO L93 Difference]: Finished difference Result 349 states and 416 transitions. [2019-12-07 19:07:57,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-12-07 19:07:57,778 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2019-12-07 19:07:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:07:57,780 INFO L225 Difference]: With dead ends: 349 [2019-12-07 19:07:57,780 INFO L226 Difference]: Without dead ends: 338 [2019-12-07 19:07:57,781 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=617, Invalid=3289, Unknown=0, NotChecked=0, Total=3906 [2019-12-07 19:07:57,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-12-07 19:07:57,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 279. [2019-12-07 19:07:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-12-07 19:07:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 341 transitions. [2019-12-07 19:07:57,807 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 341 transitions. Word has length 27 [2019-12-07 19:07:57,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:07:57,807 INFO L462 AbstractCegarLoop]: Abstraction has 279 states and 341 transitions. [2019-12-07 19:07:57,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 19:07:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 341 transitions. [2019-12-07 19:07:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 19:07:57,809 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:07:57,809 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2019-12-07 19:07:58,009 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:58,010 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:07:58,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:07:58,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1167035600, now seen corresponding path program 1 times [2019-12-07 19:07:58,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:07:58,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616195291] [2019-12-07 19:07:58,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:07:58,025 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:07:58,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273292568] [2019-12-07 19:07:58,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:07:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:07:58,079 INFO L264 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 39 conjunts are in the unsatisfiable core [2019-12-07 19:07:58,081 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:07:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:58,160 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:07:58,245 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:07:58,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616195291] [2019-12-07 19:07:58,246 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:07:58,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273292568] [2019-12-07 19:07:58,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [255438861] [2019-12-07 19:07:58,247 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-12-07 19:07:58,247 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 19:07:58,247 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 19:07:58,247 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 19:07:58,247 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 19:07:58,352 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 14 iterations. Over-approximation may be very coarse. [2019-12-07 19:07:58,360 WARN L222 IntervalDomain]: Interval conversion did not stabilize in 14 iterations. Over-approximation may be very coarse. [2019-12-07 19:07:58,375 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 19:07:58,512 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-12-07 19:07:59,321 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-12-07 19:08:00,143 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:08:00,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 19:08:00,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2019-12-07 19:08:00,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164905340] [2019-12-07 19:08:00,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 19:08:00,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:08:00,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 19:08:00,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=426, Unknown=1, NotChecked=0, Total=506 [2019-12-07 19:08:00,144 INFO L87 Difference]: Start difference. First operand 279 states and 341 transitions. Second operand 14 states. [2019-12-07 19:08:01,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:08:01,278 INFO L93 Difference]: Finished difference Result 333 states and 406 transitions. [2019-12-07 19:08:01,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 19:08:01,278 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2019-12-07 19:08:01,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:08:01,280 INFO L225 Difference]: With dead ends: 333 [2019-12-07 19:08:01,280 INFO L226 Difference]: Without dead ends: 321 [2019-12-07 19:08:01,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 91 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=214, Invalid=906, Unknown=2, NotChecked=0, Total=1122 [2019-12-07 19:08:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-12-07 19:08:01,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 112. [2019-12-07 19:08:01,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-12-07 19:08:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2019-12-07 19:08:01,297 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 40 [2019-12-07 19:08:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:08:01,298 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2019-12-07 19:08:01,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 19:08:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2019-12-07 19:08:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 19:08:01,299 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:08:01,299 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-12-07 19:08:01,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:08:01,500 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:08:01,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:08:01,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1938381657, now seen corresponding path program 2 times [2019-12-07 19:08:01,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:08:01,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504589089] [2019-12-07 19:08:01,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:08:01,511 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 19:08:01,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [530704648] [2019-12-07 19:08:01,511 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:08:01,536 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-12-07 19:08:01,536 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 19:08:01,537 WARN L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 40 conjunts are in the unsatisfiable core [2019-12-07 19:08:01,538 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:08:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-12-07 19:08:01,724 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:08:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-12-07 19:08:23,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504589089] [2019-12-07 19:08:23,381 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 19:08:23,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530704648] [2019-12-07 19:08:23,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:08:23,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 21 [2019-12-07 19:08:23,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253534806] [2019-12-07 19:08:23,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-12-07 19:08:23,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:08:23,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-12-07 19:08:23,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=347, Unknown=9, NotChecked=0, Total=420 [2019-12-07 19:08:23,382 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand 21 states. [2019-12-07 19:08:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:08:26,804 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2019-12-07 19:08:26,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 19:08:26,805 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 48 [2019-12-07 19:08:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:08:26,805 INFO L225 Difference]: With dead ends: 112 [2019-12-07 19:08:26,805 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 19:08:26,806 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=137, Invalid=556, Unknown=9, NotChecked=0, Total=702 [2019-12-07 19:08:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 19:08:26,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 19:08:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 19:08:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 19:08:26,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2019-12-07 19:08:26,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:08:26,807 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 19:08:26,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-12-07 19:08:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 19:08:26,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 19:08:27,007 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 19:08:27,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 19:08:27,662 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 65 [2019-12-07 19:08:45,684 WARN L192 SmtUtils]: Spent 18.02 s on a formula simplification. DAG size of input: 224 DAG size of output: 38 [2019-12-07 19:08:49,791 WARN L192 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 221 DAG size of output: 60 [2019-12-07 19:08:56,877 WARN L192 SmtUtils]: Spent 7.08 s on a formula simplification. DAG size of input: 224 DAG size of output: 38 [2019-12-07 19:09:06,709 WARN L192 SmtUtils]: Spent 9.82 s on a formula simplification. DAG size of input: 224 DAG size of output: 38 [2019-12-07 19:09:13,803 WARN L192 SmtUtils]: Spent 7.09 s on a formula simplification. DAG size of input: 224 DAG size of output: 39 [2019-12-07 19:09:13,806 INFO L242 CegarLoopResult]: At program point L6-5(lines 5 11) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~c~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (exists ((ULTIMATE.start_main_~p~0 Int) (ULTIMATE.start_main_~r~0 Int) (ULTIMATE.start_main_~k~0 Int)) (= (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) ULTIMATE.start_main_~b~0) (+ (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~q~0)) (* ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~s~0 (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~k~0)))))) (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0)) (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0))) ULTIMATE.start_main_~c~0)) (<= 1 ULTIMATE.start_main_~y~0)) [2019-12-07 19:09:13,806 INFO L242 CegarLoopResult]: At program point L35-2(lines 35 44) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0))) (or (and (= ULTIMATE.start_main_~s~0 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse0 (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~y~0 (+ (* ULTIMATE.start_main_~s~0 (- 2)) ULTIMATE.start_main_~r~0)) (* ULTIMATE.start_main_~b~0 2) (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~q~0 (- 2)) ULTIMATE.start_main_~p~0)))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 (exists ((ULTIMATE.start_main_~p~0 Int) (ULTIMATE.start_main_~r~0 Int) (ULTIMATE.start_main_~k~0 Int)) (= (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) ULTIMATE.start_main_~b~0) (+ (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~q~0)) (* ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~s~0 (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~k~0)))))) (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0)) (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0))) ULTIMATE.start_main_~c~0))))) [2019-12-07 19:09:13,806 INFO L246 CegarLoopResult]: For program point L6-6(lines 6 9) no Hoare annotation was computed. [2019-12-07 19:09:13,806 INFO L246 CegarLoopResult]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2019-12-07 19:09:13,806 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 19:09:13,806 INFO L242 CegarLoopResult]: At program point L6-8(lines 5 11) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~c~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (exists ((ULTIMATE.start_main_~p~0 Int) (ULTIMATE.start_main_~r~0 Int) (ULTIMATE.start_main_~k~0 Int)) (= (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) ULTIMATE.start_main_~b~0) (+ (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~q~0)) (* ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~s~0 (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~k~0)))))) (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0)) (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0))) ULTIMATE.start_main_~c~0)) (<= 1 ULTIMATE.start_main_~y~0)) [2019-12-07 19:09:13,806 INFO L246 CegarLoopResult]: For program point L6-9(lines 6 9) no Hoare annotation was computed. [2019-12-07 19:09:13,806 INFO L242 CegarLoopResult]: At program point L6-11(lines 40 41) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~c~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (exists ((ULTIMATE.start_main_~p~0 Int) (ULTIMATE.start_main_~r~0 Int) (ULTIMATE.start_main_~k~0 Int)) (= (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) ULTIMATE.start_main_~b~0) (+ (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~q~0)) (* ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~s~0 (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~k~0)))))) (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0)) (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0))) ULTIMATE.start_main_~c~0)) (<= 1 ULTIMATE.start_main_~y~0)) [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L6-12(lines 6 9) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L242 CegarLoopResult]: At program point L6-14(lines 5 11) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L6-15(lines 6 9) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L249 CegarLoopResult]: At program point L6-17(lines 5 11) the Hoare annotation is: true [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L7(lines 7 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L7-1(lines 7 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L7-2(lines 7 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L7-3(lines 7 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L7-4(lines 7 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point L7-5(lines 7 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 19:09:13,807 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 19:09:13,808 INFO L242 CegarLoopResult]: At program point L29-2(lines 29 56) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse1 (exists ((ULTIMATE.start_main_~p~0 Int) (ULTIMATE.start_main_~r~0 Int) (ULTIMATE.start_main_~k~0 Int)) (= (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) ULTIMATE.start_main_~b~0) (+ (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~q~0)) (* ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~s~0 (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~k~0)))))))) (or (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~y~0 (+ (* ULTIMATE.start_main_~s~0 (- 2)) ULTIMATE.start_main_~r~0)) (* ULTIMATE.start_main_~b~0 2) (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~q~0 (- 2)) ULTIMATE.start_main_~p~0)))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 .cse1) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (or (not (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0)) (= (let ((.cse2 (+ ULTIMATE.start_main_~k~0 1))) (+ (* (+ (* (* ULTIMATE.start_main_~s~0 .cse2) (- 1)) ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~y~0) (* (+ (* (* ULTIMATE.start_main_~q~0 .cse2) (- 1)) ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~x~0))) 0)) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~q~0 0) (<= 1 ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse0 .cse1))) [2019-12-07 19:09:13,808 INFO L246 CegarLoopResult]: For program point L29-3(lines 29 56) no Hoare annotation was computed. [2019-12-07 19:09:13,808 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 19:09:13,808 INFO L246 CegarLoopResult]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-12-07 19:09:13,808 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 19:09:13,808 INFO L246 CegarLoopResult]: For program point L6(lines 6 9) no Hoare annotation was computed. [2019-12-07 19:09:13,808 INFO L242 CegarLoopResult]: At program point L6-2(lines 5 11) the Hoare annotation is: (and (= ULTIMATE.start_main_~a~0 (+ (* ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~c~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (exists ((ULTIMATE.start_main_~p~0 Int) (ULTIMATE.start_main_~r~0 Int) (ULTIMATE.start_main_~k~0 Int)) (= (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0))) ULTIMATE.start_main_~b~0) (+ (* ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~q~0)) (* ULTIMATE.start_main_~y~0 (+ ULTIMATE.start_main_~s~0 (* ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~k~0)))))) (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~p~0)) (+ (* ULTIMATE.start_main_~k~0 (+ (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~s~0))) ULTIMATE.start_main_~c~0))) [2019-12-07 19:09:13,808 INFO L246 CegarLoopResult]: For program point L6-3(lines 6 9) no Hoare annotation was computed. [2019-12-07 19:09:13,815 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,821 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,822 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,836 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,837 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,840 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,842 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:09:13 BoogieIcfgContainer [2019-12-07 19:09:13,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:09:13,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:09:13,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:09:13,844 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:09:13,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:07:21" (3/4) ... [2019-12-07 19:09:13,847 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 19:09:13,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 19:09:13,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 19:09:13,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 19:09:13,877 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((a == y * (s * -2 + r) + b * 2 + x * (q * -2 + p) && 1 == cond) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) || ((((((((b == y && (!(c == b) || (s * (k + 1) * -1 + r) * y + (q * (k + 1) * -1 + p) * x == 0)) && p == 1) && q == 0) && 1 <= a) && r == 0) && a == x) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) [2019-12-07 19:09:13,877 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((s == 1 && b == y) && p == 1) && k == 0) && q == 0) && r == 0) && a == x) && 1 <= y) && 1 <= c) && c == a) || ((((a == y * (s * -2 + r) + b * 2 + x * (q * -2 + p) && 1 == cond) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) [2019-12-07 19:09:13,877 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((a == k * b + c && 1 == cond) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c [2019-12-07 19:09:13,877 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((a == k * b + c && 1 == cond) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) && 1 <= y [2019-12-07 19:09:13,878 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((a == k * b + c && 1 == cond) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) && 1 <= y [2019-12-07 19:09:13,878 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((a == k * b + c && 1 == cond) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) && 1 <= y [2019-12-07 19:09:13,895 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c28870a4-7ff5-492e-9556-7d9bc2e9cb37/bin/utaipan/witness.graphml [2019-12-07 19:09:13,895 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:09:13,896 INFO L168 Benchmark]: Toolchain (without parser) took 113280.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 939.9 MB in the beginning and 835.2 MB in the end (delta: 104.7 MB). Peak memory consumption was 264.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:13,896 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:09:13,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:13,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:09:13,897 INFO L168 Benchmark]: Boogie Preprocessor took 15.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:09:13,897 INFO L168 Benchmark]: RCFGBuilder took 183.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:13,897 INFO L168 Benchmark]: TraceAbstraction took 112818.90 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.1 GB in the beginning and 844.8 MB in the end (delta: 228.7 MB). Peak memory consumption was 341.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:13,898 INFO L168 Benchmark]: Witness Printer took 51.51 ms. Allocated memory is still 1.2 GB. Free memory was 844.8 MB in the beginning and 835.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:09:13,899 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 183.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 112818.90 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.1 GB in the beginning and 844.8 MB in the end (delta: 228.7 MB). Peak memory consumption was 341.2 MB. Max. memory is 11.5 GB. * Witness Printer took 51.51 ms. Allocated memory is still 1.2 GB. Free memory was 844.8 MB in the beginning and 835.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant [2019-12-07 19:09:13,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((a == k * b + c && 1 == cond) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) && 1 <= y - InvariantResult [Line: 29]: Loop Invariant [2019-12-07 19:09:13,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((a == y * (s * -2 + r) + b * 2 + x * (q * -2 + p) && 1 == cond) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) || ((((((((b == y && (!(c == b) || (s * (k + 1) * -1 + r) * y + (q * (k + 1) * -1 + p) * x == 0)) && p == 1) && q == 0) && 1 <= a) && r == 0) && a == x) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) - InvariantResult [Line: 5]: Loop Invariant [2019-12-07 19:09:13,910 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,910 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,910 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((a == k * b + c && 1 == cond) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) && 1 <= y - InvariantResult [Line: 35]: Loop Invariant [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((((((((s == 1 && b == y) && p == 1) && k == 0) && q == 0) && r == 0) && a == x) && 1 <= y) && 1 <= c) && c == a) || ((((a == y * (s * -2 + r) + b * 2 + x * (q * -2 + p) && 1 == cond) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: a == y * r + x * p && !(0 == cond) - InvariantResult [Line: 5]: Loop Invariant [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((a == k * b + c && 1 == cond) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c) && 1 <= y - InvariantResult [Line: 5]: Loop Invariant [2019-12-07 19:09:13,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~p~0,QUANTIFIED] [2019-12-07 19:09:13,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2019-12-07 19:09:13,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~r~0,QUANTIFIED] [2019-12-07 19:09:13,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((a == k * b + c && 1 == cond) && 1 <= y) && (\exists ULTIMATE.start_main_~p~0 : int, ULTIMATE.start_main_~r~0 : int, ULTIMATE.start_main_~k~0 : int :: ULTIMATE.start_main_~k~0 * (y * ULTIMATE.start_main_~r~0 + x * ULTIMATE.start_main_~p~0) + b == x * (ULTIMATE.start_main_~p~0 * ULTIMATE.start_main_~k~0 + q) + y * (s + ULTIMATE.start_main_~r~0 * ULTIMATE.start_main_~k~0))) && y * r + x * p == k * (x * q + y * s) + c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 6 error locations. Result: SAFE, OverallTime: 65.9s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 46.7s, HoareTripleCheckerStatistics: 253 SDtfs, 826 SDslu, 631 SDs, 0 SdLazy, 1283 SolverSat, 551 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 399 SyntacticMatches, 25 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1970 ImplicationChecksByTransitivity, 56.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 497 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 68 NumberOfFragments, 501 HoareAnnotationTreeSize, 8 FomulaSimplifications, 27166 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 8 FomulaSimplificationsInter, 45195 FormulaSimplificationTreeSizeReductionInter, 46.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.5s InterpolantComputationTime, 225 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 422 ConstructedInterpolants, 42 QuantifiedInterpolants, 162149 SizeOfPredicates, 109 NumberOfNonLiveVariables, 825 ConjunctsInSsa, 222 ConjunctsInUnsatCore, 23 InterpolantComputations, 11 PerfectInterpolantSequences, 122/274 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...