./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 017d3654e23edd78942e40c40139f0cd7a1f3659 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 017d3654e23edd78942e40c40139f0cd7a1f3659 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:31:07,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:31:07,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:31:07,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:31:07,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:31:07,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:31:07,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:31:07,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:31:07,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:31:07,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:31:07,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:31:07,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:31:07,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:31:07,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:31:07,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:31:07,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:31:07,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:31:07,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:31:07,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:31:07,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:31:07,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:31:07,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:31:07,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:31:07,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:31:07,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:31:07,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:31:07,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:31:07,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:31:07,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:31:07,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:31:07,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:31:07,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:31:07,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:31:07,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:31:07,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:31:07,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:31:07,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:31:07,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:31:07,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:31:07,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:31:07,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:31:07,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 14:31:07,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:31:07,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:31:07,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:31:07,404 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:31:07,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:31:07,404 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:31:07,404 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 14:31:07,404 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:31:07,404 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:31:07,405 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 14:31:07,405 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 14:31:07,405 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:31:07,405 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 14:31:07,405 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 14:31:07,405 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 14:31:07,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:31:07,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:31:07,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:31:07,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:31:07,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:31:07,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:31:07,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:31:07,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:31:07,407 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:31:07,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:31:07,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:31:07,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:31:07,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:31:07,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:31:07,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:31:07,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:31:07,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:31:07,408 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 017d3654e23edd78942e40c40139f0cd7a1f3659 [2020-12-09 14:31:07,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:31:07,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:31:07,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:31:07,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:31:07,609 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:31:07,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-12-09 14:31:07,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/257e19db8/b902d804e3454f658a4d6f7f7377a615/FLAGe8ed4ed79 [2020-12-09 14:31:08,083 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:31:08,084 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-12-09 14:31:08,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/257e19db8/b902d804e3454f658a4d6f7f7377a615/FLAGe8ed4ed79 [2020-12-09 14:31:08,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/257e19db8/b902d804e3454f658a4d6f7f7377a615 [2020-12-09 14:31:08,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:31:08,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:31:08,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:31:08,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:31:08,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:31:08,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b473021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08, skipping insertion in model container [2020-12-09 14:31:08,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:31:08,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:31:08,262 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/sv-benchmarks/c/eca-rers2012/Problem10_label14.c[3703,3716] [2020-12-09 14:31:08,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:31:08,405 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:31:08,425 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/sv-benchmarks/c/eca-rers2012/Problem10_label14.c[3703,3716] [2020-12-09 14:31:08,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:31:08,500 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:31:08,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08 WrapperNode [2020-12-09 14:31:08,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:31:08,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:31:08,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:31:08,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:31:08,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:31:08,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:31:08,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:31:08,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:31:08,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... [2020-12-09 14:31:08,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:31:08,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:31:08,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:31:08,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:31:08,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/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 [2020-12-09 14:31:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 14:31:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:31:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:31:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:31:14,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:31:14,623 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 14:31:14,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:31:14 BoogieIcfgContainer [2020-12-09 14:31:14,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:31:14,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:31:14,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:31:14,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:31:14,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:31:08" (1/3) ... [2020-12-09 14:31:14,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6895f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:31:14, skipping insertion in model container [2020-12-09 14:31:14,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:31:08" (2/3) ... [2020-12-09 14:31:14,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6895f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:31:14, skipping insertion in model container [2020-12-09 14:31:14,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:31:14" (3/3) ... [2020-12-09 14:31:14,630 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label14.c [2020-12-09 14:31:14,640 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:31:14,643 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 14:31:14,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 14:31:14,665 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:31:14,665 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:31:14,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:31:14,666 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:31:14,666 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:31:14,666 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:31:14,666 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:31:14,666 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:31:14,674 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 14:31:14,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 14:31:14,677 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:31:14,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 14:31:14,678 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:31:14,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:31:14,681 INFO L82 PathProgramCache]: Analyzing trace with hash 857611098, now seen corresponding path program 1 times [2020-12-09 14:31:14,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:31:14,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868238707] [2020-12-09 14:31:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:31:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:31:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:31:14,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868238707] [2020-12-09 14:31:14,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:31:14,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:31:14,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278428362] [2020-12-09 14:31:14,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:31:14,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:31:14,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:31:14,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:31:14,824 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 14:31:14,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:31:14,878 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 14:31:14,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:31:14,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 14:31:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:31:14,887 INFO L225 Difference]: With dead ends: 23 [2020-12-09 14:31:14,888 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 14:31:14,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:31:14,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 14:31:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 14:31:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 14:31:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 14:31:14,920 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 14:31:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:31:14,920 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 14:31:14,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:31:14,920 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 14:31:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 14:31:14,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:31:14,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 14:31:14,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 14:31:14,922 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:31:14,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:31:14,923 INFO L82 PathProgramCache]: Analyzing trace with hash 889162388, now seen corresponding path program 1 times [2020-12-09 14:31:14,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:31:14,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978170595] [2020-12-09 14:31:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:31:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:31:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:31:15,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978170595] [2020-12-09 14:31:15,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646428174] [2020-12-09 14:31:15,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/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 [2020-12-09 14:31:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:31:15,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 14:31:15,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:31:15,466 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 133 [2020-12-09 14:31:15,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,510 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,518 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,534 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,535 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,543 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,547 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,549 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,550 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,551 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,559 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,562 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,564 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 14:31:15,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 14:31:15,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 14:31:15,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,579 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,581 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,588 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,590 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 14:31:15,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 14:31:15,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:31:15,606 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 9, 4, 5, 4, 4, 4, 3, 4, 1] term [2020-12-09 14:31:15,607 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2020-12-09 14:31:15,609 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 5, 4, 4, 4, 3, 4, 1] term [2020-12-09 14:31:15,609 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 14:31:15,610 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 4, 4, 3, 4, 1] term [2020-12-09 14:31:15,610 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 14:31:15,611 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 4, 1] term [2020-12-09 14:31:15,611 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 14:31:15,615 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 4, 4, 3, 4, 1] term [2020-12-09 14:31:15,615 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 14:31:15,717 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 14:31:15,718 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 14:31:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:31:15,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:31:16,050 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 1666 DAG size of output: 1086 [2020-12-09 14:31:16,064 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 14:31:16,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [301244750] [2020-12-09 14:31:16,080 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 14:31:16,080 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 14:31:16,083 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 14:31:16,088 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 14:31:16,088 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 14:31:16,207 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2020-12-09 14:31:16,488 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2020-12-09 14:31:17,142 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 1692 DAG size of output: 1607 [2020-12-09 14:40:13,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 14:40:13,015 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: variable got div captured at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:319) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:141) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminate(DualJunctionDer.java:119) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1133) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 14:40:13,025 INFO L168 Benchmark]: Toolchain (without parser) took 544918.04 ms. Allocated memory was 83.9 MB in the beginning and 734.0 MB in the end (delta: 650.1 MB). Free memory was 52.1 MB in the beginning and 533.6 MB in the end (delta: -481.5 MB). Peak memory consumption was 489.9 MB. Max. memory is 16.1 GB. [2020-12-09 14:40:13,025 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:40:13,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.19 ms. Allocated memory is still 83.9 MB. Free memory was 51.9 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:40:13,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.46 ms. Allocated memory is still 83.9 MB. Free memory was 49.3 MB in the beginning and 41.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 14:40:13,027 INFO L168 Benchmark]: Boogie Preprocessor took 77.56 ms. Allocated memory is still 83.9 MB. Free memory was 41.3 MB in the beginning and 57.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:40:13,027 INFO L168 Benchmark]: RCFGBuilder took 5969.57 ms. Allocated memory was 83.9 MB in the beginning and 272.6 MB in the end (delta: 188.7 MB). Free memory was 57.4 MB in the beginning and 162.9 MB in the end (delta: -105.5 MB). Peak memory consumption was 138.8 MB. Max. memory is 16.1 GB. [2020-12-09 14:40:13,028 INFO L168 Benchmark]: TraceAbstraction took 538397.32 ms. Allocated memory was 272.6 MB in the beginning and 734.0 MB in the end (delta: 461.4 MB). Free memory was 162.9 MB in the beginning and 533.6 MB in the end (delta: -370.7 MB). Peak memory consumption was 411.6 MB. Max. memory is 16.1 GB. [2020-12-09 14:40:13,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 69.2 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 394.19 ms. Allocated memory is still 83.9 MB. Free memory was 51.9 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.46 ms. Allocated memory is still 83.9 MB. Free memory was 49.3 MB in the beginning and 41.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.56 ms. Allocated memory is still 83.9 MB. Free memory was 41.3 MB in the beginning and 57.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5969.57 ms. Allocated memory was 83.9 MB in the beginning and 272.6 MB in the end (delta: 188.7 MB). Free memory was 57.4 MB in the beginning and 162.9 MB in the end (delta: -105.5 MB). Peak memory consumption was 138.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 538397.32 ms. Allocated memory was 272.6 MB in the beginning and 734.0 MB in the end (delta: 461.4 MB). Free memory was 162.9 MB in the beginning and 533.6 MB in the end (delta: -370.7 MB). Peak memory consumption was 411.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: variable got div captured de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: variable got div captured: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:40:14,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:40:14,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:40:14,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:40:14,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:40:14,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:40:14,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:40:14,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:40:14,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:40:14,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:40:14,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:40:14,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:40:14,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:40:14,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:40:14,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:40:14,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:40:14,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:40:14,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:40:14,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:40:14,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:40:14,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:40:14,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:40:14,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:40:14,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:40:14,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:40:14,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:40:14,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:40:14,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:40:14,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:40:14,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:40:14,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:40:14,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:40:14,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:40:14,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:40:14,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:40:14,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:40:14,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:40:14,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:40:14,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:40:14,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:40:14,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:40:14,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 14:40:14,678 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:40:14,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:40:14,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:40:14,680 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:40:14,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:40:14,680 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:40:14,680 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:40:14,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:40:14,680 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:40:14,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:40:14,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:40:14,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:40:14,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:40:14,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:40:14,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:40:14,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:40:14,682 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:40:14,682 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 14:40:14,682 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 14:40:14,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:40:14,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:40:14,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:40:14,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:40:14,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:40:14,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 14:40:14,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:40:14,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:40:14,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:40:14,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:40:14,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:40:14,683 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 14:40:14,683 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 14:40:14,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:40:14,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:40:14,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:40:14,684 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 017d3654e23edd78942e40c40139f0cd7a1f3659 [2020-12-09 14:40:14,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:40:14,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:40:14,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:40:14,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:40:14,926 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:40:14,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-12-09 14:40:14,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/4c4962fad/566372dc589847c6a31b059d590fa343/FLAG98d9232a6 [2020-12-09 14:40:15,487 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:40:15,487 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/sv-benchmarks/c/eca-rers2012/Problem10_label14.c [2020-12-09 14:40:15,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/4c4962fad/566372dc589847c6a31b059d590fa343/FLAG98d9232a6 [2020-12-09 14:40:15,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/data/4c4962fad/566372dc589847c6a31b059d590fa343 [2020-12-09 14:40:15,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:40:15,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:40:15,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:40:15,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:40:15,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:40:15,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:40:15" (1/1) ... [2020-12-09 14:40:15,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a3704f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:15, skipping insertion in model container [2020-12-09 14:40:15,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:40:15" (1/1) ... [2020-12-09 14:40:15,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:40:16,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:40:16,120 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/sv-benchmarks/c/eca-rers2012/Problem10_label14.c[3703,3716] [2020-12-09 14:40:16,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:40:16,278 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:40:16,302 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/sv-benchmarks/c/eca-rers2012/Problem10_label14.c[3703,3716] [2020-12-09 14:40:16,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:40:16,373 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:40:16,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16 WrapperNode [2020-12-09 14:40:16,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:40:16,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:40:16,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:40:16,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:40:16,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:40:16,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:40:16,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:40:16,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:40:16,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... [2020-12-09 14:40:16,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:40:16,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:40:16,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:40:16,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:40:16,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/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 [2020-12-09 14:40:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 14:40:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:40:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:40:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:40:18,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:40:18,500 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 14:40:18,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:40:18 BoogieIcfgContainer [2020-12-09 14:40:18,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:40:18,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:40:18,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:40:18,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:40:18,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:40:15" (1/3) ... [2020-12-09 14:40:18,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c382d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:40:18, skipping insertion in model container [2020-12-09 14:40:18,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:40:16" (2/3) ... [2020-12-09 14:40:18,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c382d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:40:18, skipping insertion in model container [2020-12-09 14:40:18,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:40:18" (3/3) ... [2020-12-09 14:40:18,510 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label14.c [2020-12-09 14:40:18,523 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:40:18,526 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 14:40:18,533 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 14:40:18,551 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:40:18,551 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:40:18,551 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:40:18,551 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:40:18,551 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:40:18,551 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:40:18,551 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:40:18,551 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:40:18,564 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2020-12-09 14:40:18,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-09 14:40:18,568 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:40:18,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:40:18,569 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:40:18,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:40:18,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1843609039, now seen corresponding path program 1 times [2020-12-09 14:40:18,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:40:18,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589797144] [2020-12-09 14:40:18,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 14:40:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:40:18,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:40:18,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:40:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:40:18,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:40:18,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589797144] [2020-12-09 14:40:18,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:40:18,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:40:18,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058149039] [2020-12-09 14:40:18,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:40:18,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:40:18,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:40:18,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:18,730 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2020-12-09 14:40:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:40:21,452 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2020-12-09 14:40:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:40:21,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-09 14:40:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:40:21,463 INFO L225 Difference]: With dead ends: 552 [2020-12-09 14:40:21,463 INFO L226 Difference]: Without dead ends: 282 [2020-12-09 14:40:21,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:21,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-09 14:40:21,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-09 14:40:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-09 14:40:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 407 transitions. [2020-12-09 14:40:21,502 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 407 transitions. Word has length 31 [2020-12-09 14:40:21,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:40:21,502 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 407 transitions. [2020-12-09 14:40:21,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:40:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 407 transitions. [2020-12-09 14:40:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-09 14:40:21,505 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:40:21,505 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:40:21,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 14:40:21,708 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:40:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:40:21,710 INFO L82 PathProgramCache]: Analyzing trace with hash 992861769, now seen corresponding path program 1 times [2020-12-09 14:40:21,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:40:21,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040529697] [2020-12-09 14:40:21,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 14:40:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:40:21,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:40:21,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:40:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:40:21,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:40:21,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040529697] [2020-12-09 14:40:21,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:40:21,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:40:21,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103325236] [2020-12-09 14:40:21,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:40:21,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:40:21,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:40:21,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:21,893 INFO L87 Difference]: Start difference. First operand 282 states and 407 transitions. Second operand 3 states. [2020-12-09 14:40:24,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:40:24,518 INFO L93 Difference]: Finished difference Result 840 states and 1216 transitions. [2020-12-09 14:40:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:40:24,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-12-09 14:40:24,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:40:24,522 INFO L225 Difference]: With dead ends: 840 [2020-12-09 14:40:24,522 INFO L226 Difference]: Without dead ends: 560 [2020-12-09 14:40:24,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-09 14:40:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-12-09 14:40:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-09 14:40:24,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 715 transitions. [2020-12-09 14:40:24,546 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 715 transitions. Word has length 99 [2020-12-09 14:40:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:40:24,547 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 715 transitions. [2020-12-09 14:40:24,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:40:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 715 transitions. [2020-12-09 14:40:24,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-09 14:40:24,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:40:24,549 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:40:24,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 14:40:24,750 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:40:24,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:40:24,752 INFO L82 PathProgramCache]: Analyzing trace with hash -890125352, now seen corresponding path program 1 times [2020-12-09 14:40:24,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:40:24,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681803189] [2020-12-09 14:40:24,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 14:40:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:40:24,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 14:40:24,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:40:24,981 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:40:24,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:40:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:40:25,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681803189] [2020-12-09 14:40:25,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 14:40:25,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 14:40:25,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468843987] [2020-12-09 14:40:25,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:40:25,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:40:25,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:40:25,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:40:25,217 INFO L87 Difference]: Start difference. First operand 560 states and 715 transitions. Second operand 4 states. [2020-12-09 14:40:52,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:40:52,583 INFO L93 Difference]: Finished difference Result 1554 states and 2000 transitions. [2020-12-09 14:40:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:40:52,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2020-12-09 14:40:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:40:52,591 INFO L225 Difference]: With dead ends: 1554 [2020-12-09 14:40:52,591 INFO L226 Difference]: Without dead ends: 977 [2020-12-09 14:40:52,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:40:52,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-12-09 14:40:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 560. [2020-12-09 14:40:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-09 14:40:52,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 711 transitions. [2020-12-09 14:40:52,607 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 711 transitions. Word has length 106 [2020-12-09 14:40:52,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:40:52,608 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 711 transitions. [2020-12-09 14:40:52,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:40:52,608 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 711 transitions. [2020-12-09 14:40:52,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-09 14:40:52,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:40:52,611 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:40:52,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 14:40:52,812 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:40:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:40:52,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1375104924, now seen corresponding path program 1 times [2020-12-09 14:40:52,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:40:52,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308856605] [2020-12-09 14:40:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 14:40:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:40:52,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:40:52,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:40:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:40:53,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:40:53,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308856605] [2020-12-09 14:40:53,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:40:53,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:40:53,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183445501] [2020-12-09 14:40:53,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:40:53,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:40:53,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:40:53,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:53,033 INFO L87 Difference]: Start difference. First operand 560 states and 711 transitions. Second operand 3 states. [2020-12-09 14:40:55,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:40:55,682 INFO L93 Difference]: Finished difference Result 1396 states and 1822 transitions. [2020-12-09 14:40:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:40:55,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-12-09 14:40:55,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:40:55,686 INFO L225 Difference]: With dead ends: 1396 [2020-12-09 14:40:55,686 INFO L226 Difference]: Without dead ends: 838 [2020-12-09 14:40:55,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:55,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-12-09 14:40:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 699. [2020-12-09 14:40:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-12-09 14:40:55,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 860 transitions. [2020-12-09 14:40:55,698 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 860 transitions. Word has length 165 [2020-12-09 14:40:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:40:55,698 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 860 transitions. [2020-12-09 14:40:55,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:40:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 860 transitions. [2020-12-09 14:40:55,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-09 14:40:55,700 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:40:55,700 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:40:55,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 14:40:55,902 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:40:55,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:40:55,903 INFO L82 PathProgramCache]: Analyzing trace with hash 2017308939, now seen corresponding path program 1 times [2020-12-09 14:40:55,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:40:55,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152901332] [2020-12-09 14:40:55,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 14:40:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:40:56,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 14:40:56,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:40:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 14:40:56,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:40:56,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152901332] [2020-12-09 14:40:56,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:40:56,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:40:56,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692790932] [2020-12-09 14:40:56,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:40:56,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:40:56,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:40:56,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:56,150 INFO L87 Difference]: Start difference. First operand 699 states and 860 transitions. Second operand 3 states. [2020-12-09 14:40:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:40:58,127 INFO L93 Difference]: Finished difference Result 1535 states and 1866 transitions. [2020-12-09 14:40:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:40:58,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2020-12-09 14:40:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:40:58,131 INFO L225 Difference]: With dead ends: 1535 [2020-12-09 14:40:58,131 INFO L226 Difference]: Without dead ends: 838 [2020-12-09 14:40:58,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-12-09 14:40:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-12-09 14:40:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-12-09 14:40:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1003 transitions. [2020-12-09 14:40:58,144 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1003 transitions. Word has length 172 [2020-12-09 14:40:58,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:40:58,144 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1003 transitions. [2020-12-09 14:40:58,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:40:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1003 transitions. [2020-12-09 14:40:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-12-09 14:40:58,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:40:58,147 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:40:58,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 14:40:58,348 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:40:58,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:40:58,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1307349622, now seen corresponding path program 1 times [2020-12-09 14:40:58,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:40:58,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077211070] [2020-12-09 14:40:58,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 14:40:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:40:58,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:40:58,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:40:58,634 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-12-09 14:40:58,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:40:58,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077211070] [2020-12-09 14:40:58,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:40:58,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:40:58,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423796139] [2020-12-09 14:40:58,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:40:58,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:40:58,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:40:58,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:40:58,636 INFO L87 Difference]: Start difference. First operand 838 states and 1003 transitions. Second operand 3 states. [2020-12-09 14:41:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:41:01,300 INFO L93 Difference]: Finished difference Result 1813 states and 2233 transitions. [2020-12-09 14:41:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:41:01,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-12-09 14:41:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:41:01,306 INFO L225 Difference]: With dead ends: 1813 [2020-12-09 14:41:01,306 INFO L226 Difference]: Without dead ends: 1116 [2020-12-09 14:41:01,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:41:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-12-09 14:41:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-12-09 14:41:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-12-09 14:41:01,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1316 transitions. [2020-12-09 14:41:01,332 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1316 transitions. Word has length 210 [2020-12-09 14:41:01,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:41:01,333 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1316 transitions. [2020-12-09 14:41:01,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:41:01,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1316 transitions. [2020-12-09 14:41:01,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-12-09 14:41:01,336 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:41:01,337 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:41:01,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 14:41:01,537 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:41:01,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:41:01,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1928352419, now seen corresponding path program 1 times [2020-12-09 14:41:01,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:41:01,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493625403] [2020-12-09 14:41:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 14:41:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:41:01,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:41:01,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:41:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:41:01,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:41:01,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493625403] [2020-12-09 14:41:01,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:41:01,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:41:01,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731938930] [2020-12-09 14:41:01,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:41:01,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:41:01,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:41:01,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:41:01,791 INFO L87 Difference]: Start difference. First operand 1116 states and 1316 transitions. Second operand 3 states. [2020-12-09 14:41:04,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:41:04,250 INFO L93 Difference]: Finished difference Result 2369 states and 2889 transitions. [2020-12-09 14:41:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:41:04,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-12-09 14:41:04,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:41:04,256 INFO L225 Difference]: With dead ends: 2369 [2020-12-09 14:41:04,256 INFO L226 Difference]: Without dead ends: 1394 [2020-12-09 14:41:04,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:41:04,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-12-09 14:41:04,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2020-12-09 14:41:04,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-12-09 14:41:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1639 transitions. [2020-12-09 14:41:04,273 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1639 transitions. Word has length 220 [2020-12-09 14:41:04,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:41:04,274 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1639 transitions. [2020-12-09 14:41:04,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:41:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1639 transitions. [2020-12-09 14:41:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-12-09 14:41:04,277 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:41:04,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:41:04,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 14:41:04,478 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:41:04,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:41:04,480 INFO L82 PathProgramCache]: Analyzing trace with hash 834841586, now seen corresponding path program 1 times [2020-12-09 14:41:04,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:41:04,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861648680] [2020-12-09 14:41:04,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 14:41:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:41:04,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 14:41:04,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:41:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 26 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:41:05,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:41:06,401 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 14:41:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 26 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:41:06,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861648680] [2020-12-09 14:41:06,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [4975774] [2020-12-09 14:41:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt [2020-12-09 14:41:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:41:06,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 14:41:06,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:41:07,492 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 14:41:07,493 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 14:41:07,493 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 14:41:07,497 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 14:41:07,500 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 14:41:07,503 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 14:41:07,505 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 14:41:07,507 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 14:41:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-12-09 14:41:07,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:41:07,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 14:41:07,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4] total 13 [2020-12-09 14:41:07,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111387113] [2020-12-09 14:41:07,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 14:41:07,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:41:07,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 14:41:07,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-09 14:41:07,667 INFO L87 Difference]: Start difference. First operand 1394 states and 1639 transitions. Second operand 7 states. [2020-12-09 14:41:11,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:41:11,062 INFO L93 Difference]: Finished difference Result 2811 states and 3372 transitions. [2020-12-09 14:41:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 14:41:11,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 279 [2020-12-09 14:41:11,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:41:11,067 INFO L225 Difference]: With dead ends: 2811 [2020-12-09 14:41:11,067 INFO L226 Difference]: Without dead ends: 1394 [2020-12-09 14:41:11,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 824 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-12-09 14:41:11,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-12-09 14:41:11,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2020-12-09 14:41:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-12-09 14:41:11,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1630 transitions. [2020-12-09 14:41:11,084 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1630 transitions. Word has length 279 [2020-12-09 14:41:11,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:41:11,084 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1630 transitions. [2020-12-09 14:41:11,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 14:41:11,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1630 transitions. [2020-12-09 14:41:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-12-09 14:41:11,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:41:11,087 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:41:11,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt [2020-12-09 14:41:11,489 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:41:11,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:41:11,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1031152901, now seen corresponding path program 1 times [2020-12-09 14:41:11,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:41:11,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180889035] [2020-12-09 14:41:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 14:41:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:41:11,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 14:41:11,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:41:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 240 proven. 72 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 14:41:11,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:41:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 240 proven. 72 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 14:41:12,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180889035] [2020-12-09 14:41:12,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [645372778] [2020-12-09 14:41:12,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt [2020-12-09 14:41:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:41:13,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 14:41:13,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:41:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 240 proven. 72 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 14:41:13,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:41:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 240 proven. 72 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 14:41:13,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282521324] [2020-12-09 14:41:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 14:41:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:41:14,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 14:41:14,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:41:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 240 proven. 72 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 14:41:14,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:41:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 240 proven. 72 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-09 14:41:14,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 14:41:14,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3, 3, 3, 3] total 5 [2020-12-09 14:41:14,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661434237] [2020-12-09 14:41:14,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 14:41:14,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:41:14,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 14:41:14,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:41:14,811 INFO L87 Difference]: Start difference. First operand 1394 states and 1630 transitions. Second operand 6 states. [2020-12-09 14:41:15,467 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 14:42:19,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:42:19,070 INFO L93 Difference]: Finished difference Result 3620 states and 4192 transitions. [2020-12-09 14:42:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 14:42:19,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 330 [2020-12-09 14:42:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:42:19,080 INFO L225 Difference]: With dead ends: 3620 [2020-12-09 14:42:19,080 INFO L226 Difference]: Without dead ends: 2367 [2020-12-09 14:42:19,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1975 GetRequests, 1970 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-12-09 14:42:19,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2020-12-09 14:42:19,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 1950. [2020-12-09 14:42:19,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2020-12-09 14:42:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2202 transitions. [2020-12-09 14:42:19,107 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2202 transitions. Word has length 330 [2020-12-09 14:42:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:42:19,107 INFO L481 AbstractCegarLoop]: Abstraction has 1950 states and 2202 transitions. [2020-12-09 14:42:19,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 14:42:19,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2202 transitions. [2020-12-09 14:42:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-12-09 14:42:19,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:42:19,110 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:42:19,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3,12 cvc4 --incremental --print-success --lang smt [2020-12-09 14:42:19,713 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:42:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:42:19,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1413062826, now seen corresponding path program 1 times [2020-12-09 14:42:19,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:42:19,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899122654] [2020-12-09 14:42:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-12-09 14:42:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:42:19,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:42:19,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:42:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 63 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:42:20,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:42:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 269 proven. 8 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-12-09 14:42:21,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899122654] [2020-12-09 14:42:21,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [719499595] [2020-12-09 14:42:21,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt [2020-12-09 14:42:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:42:21,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 14:42:21,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:42:21,688 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-12-09 14:42:21,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:42:21,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 14:42:21,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 9 [2020-12-09 14:42:21,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570856574] [2020-12-09 14:42:21,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:42:21,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:42:21,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:42:21,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-09 14:42:21,690 INFO L87 Difference]: Start difference. First operand 1950 states and 2202 transitions. Second operand 3 states. [2020-12-09 14:42:24,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:42:24,146 INFO L93 Difference]: Finished difference Result 3759 states and 4360 transitions. [2020-12-09 14:42:24,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:42:24,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 344 [2020-12-09 14:42:24,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:42:24,154 INFO L225 Difference]: With dead ends: 3759 [2020-12-09 14:42:24,154 INFO L226 Difference]: Without dead ends: 2228 [2020-12-09 14:42:24,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1029 GetRequests, 1021 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-09 14:42:24,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-12-09 14:42:24,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2089. [2020-12-09 14:42:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-12-09 14:42:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2355 transitions. [2020-12-09 14:42:24,183 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2355 transitions. Word has length 344 [2020-12-09 14:42:24,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:42:24,183 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2355 transitions. [2020-12-09 14:42:24,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:42:24,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2355 transitions. [2020-12-09 14:42:24,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-12-09 14:42:24,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:42:24,187 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:42:24,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2020-12-09 14:42:24,588 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:42:24,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:42:24,590 INFO L82 PathProgramCache]: Analyzing trace with hash -918739027, now seen corresponding path program 1 times [2020-12-09 14:42:24,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:42:24,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739240108] [2020-12-09 14:42:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-12-09 14:42:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:42:24,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:42:24,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:42:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 86 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:42:25,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 14:42:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-12-09 14:42:26,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739240108] [2020-12-09 14:42:26,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 14:42:26,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-09 14:42:26,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408338796] [2020-12-09 14:42:26,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:42:26,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:42:26,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:42:26,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 14:42:26,006 INFO L87 Difference]: Start difference. First operand 2089 states and 2355 transitions. Second operand 4 states. [2020-12-09 14:42:29,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:42:29,448 INFO L93 Difference]: Finished difference Result 3935 states and 4498 transitions. [2020-12-09 14:42:29,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 14:42:29,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 349 [2020-12-09 14:42:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:42:29,449 INFO L225 Difference]: With dead ends: 3935 [2020-12-09 14:42:29,449 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 14:42:29,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 691 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-09 14:42:29,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 14:42:29,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 14:42:29,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 14:42:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 14:42:29,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-12-09 14:42:29,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:42:29,452 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 14:42:29,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:42:29,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 14:42:29,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 14:42:29,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-12-09 14:42:29,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 14:42:29,764 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2020-12-09 14:42:32,772 WARN L197 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2020-12-09 14:42:35,473 WARN L197 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-12-09 14:42:35,476 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 14:42:35,477 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,478 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-12-09 14:42:35,479 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 14:42:35,480 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L258 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse4 (bvsdiv ~a1~0 (_ bv5 32)))) (let ((.cse0 (= (_ bv1 32) ~a10~0)) (.cse3 (= (_ bv0 32) ~a10~0)) (.cse2 (= (_ bv4 32) ~a10~0)) (.cse5 (= (_ bv9 32) ~a19~0)) (.cse1 (not (bvsle (bvadd (bvsdiv (bvmul .cse4 (_ bv5 32)) (_ bv5 32)) (_ bv505228 32)) (_ bv4294967283 32))))) (or (= (_ bv2 32) ~a10~0) (and (= (_ bv10 32) ~a19~0) .cse0 .cse1) (and .cse2 .cse1) (and (not (bvsle ~a1~0 (_ bv4294967283 32))) .cse0) (and (or (and (bvslt (_ bv38 32) ~a1~0) (bvsge (_ bv218 32) ~a1~0)) (and (bvslt (_ bv4294967283 32) ~a1~0) (bvsge (_ bv38 32) ~a1~0))) (= (_ bv3 32) ~a10~0)) (and .cse3 (bvslt (_ bv218 32) (bvadd .cse4 (_ bv331501 32)))) (and .cse5 .cse3) (and .cse2 (= (_ bv8 32) ~a19~0)) (and .cse5 .cse1)))) [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L262 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-12-09 14:42:35,481 INFO L265 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-12-09 14:42:35,482 INFO L262 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L258 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse4 (bvsdiv ~a1~0 (_ bv5 32)))) (let ((.cse0 (= (_ bv1 32) ~a10~0)) (.cse3 (= (_ bv0 32) ~a10~0)) (.cse2 (= (_ bv4 32) ~a10~0)) (.cse5 (= (_ bv9 32) ~a19~0)) (.cse1 (not (bvsle (bvadd (bvsdiv (bvmul .cse4 (_ bv5 32)) (_ bv5 32)) (_ bv505228 32)) (_ bv4294967283 32))))) (or (= (_ bv2 32) ~a10~0) (and (= (_ bv10 32) ~a19~0) .cse0 .cse1) (and .cse2 .cse1) (and (not (bvsle ~a1~0 (_ bv4294967283 32))) .cse0) (and (or (and (bvslt (_ bv38 32) ~a1~0) (bvsge (_ bv218 32) ~a1~0)) (and (bvslt (_ bv4294967283 32) ~a1~0) (bvsge (_ bv38 32) ~a1~0))) (= (_ bv3 32) ~a10~0)) (and .cse3 (bvslt (_ bv218 32) (bvadd .cse4 (_ bv331501 32)))) (and .cse5 .cse3) (and .cse2 (= (_ bv8 32) ~a19~0)) (and .cse5 .cse1)))) [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-12-09 14:42:35,483 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 107) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 14:42:35,484 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 14:42:35,485 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 14:42:35,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:42:35 BoogieIcfgContainer [2020-12-09 14:42:35,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:42:35,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:42:35,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:42:35,499 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:42:35,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:40:18" (3/4) ... [2020-12-09 14:42:35,501 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 14:42:35,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 14:42:35,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 14:42:35,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 14:42:35,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 14:42:35,594 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a160b558-fb70-4cb4-bc6e-035949ed0548/bin/utaipan/witness.graphml [2020-12-09 14:42:35,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:42:35,595 INFO L168 Benchmark]: Toolchain (without parser) took 139634.41 ms. Allocated memory was 69.2 MB in the beginning and 195.0 MB in the end (delta: 125.8 MB). Free memory was 49.1 MB in the beginning and 62.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 113.9 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:35,596 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 69.2 MB. Free memory was 52.5 MB in the beginning and 52.4 MB in the end (delta: 84.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:42:35,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.41 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 49.0 MB in the beginning and 63.2 MB in the end (delta: -14.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:35,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.01 ms. Allocated memory is still 92.3 MB. Free memory was 63.2 MB in the beginning and 58.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:35,596 INFO L168 Benchmark]: Boogie Preprocessor took 65.74 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 53.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:35,597 INFO L168 Benchmark]: RCFGBuilder took 1996.78 ms. Allocated memory is still 92.3 MB. Free memory was 53.5 MB in the beginning and 69.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:35,597 INFO L168 Benchmark]: TraceAbstraction took 136994.43 ms. Allocated memory was 92.3 MB in the beginning and 195.0 MB in the end (delta: 102.8 MB). Free memory was 69.3 MB in the beginning and 77.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 128.9 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:35,597 INFO L168 Benchmark]: Witness Printer took 95.86 ms. Allocated memory is still 195.0 MB. Free memory was 76.6 MB in the beginning and 62.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 14:42:35,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 69.2 MB. Free memory was 52.5 MB in the beginning and 52.4 MB in the end (delta: 84.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 412.41 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 49.0 MB in the beginning and 63.2 MB in the end (delta: -14.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.01 ms. Allocated memory is still 92.3 MB. Free memory was 63.2 MB in the beginning and 58.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.74 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 53.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1996.78 ms. Allocated memory is still 92.3 MB. Free memory was 53.5 MB in the beginning and 69.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 136994.43 ms. Allocated memory was 92.3 MB in the beginning and 195.0 MB in the end (delta: 102.8 MB). Free memory was 69.3 MB in the beginning and 77.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 128.9 MB. Max. memory is 16.1 GB. * Witness Printer took 95.86 ms. Allocated memory is still 195.0 MB. Free memory was 76.6 MB in the beginning and 62.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((((2bv32 == a10 || ((10bv32 == a19 && 1bv32 == a10) && !~bvsle32(~bvadd64(~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32), 505228bv32), 4294967283bv32))) || (4bv32 == a10 && !~bvsle32(~bvadd64(~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32), 505228bv32), 4294967283bv32))) || (!~bvsle32(a1, 4294967283bv32) && 1bv32 == a10)) || (((~bvslt32(38bv32, a1) && ~bvsge32(218bv32, a1)) || (~bvslt32(4294967283bv32, a1) && ~bvsge32(38bv32, a1))) && 3bv32 == a10)) || (0bv32 == a10 && ~bvslt32(218bv32, ~bvadd64(~bvsdiv32(a1, 5bv32), 331501bv32)))) || (9bv32 == a19 && 0bv32 == a10)) || (4bv32 == a10 && 8bv32 == a19)) || (9bv32 == a19 && !~bvsle32(~bvadd64(~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32), 505228bv32), 4294967283bv32)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((2bv32 == a10 || ((10bv32 == a19 && 1bv32 == a10) && !~bvsle32(~bvadd64(~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32), 505228bv32), 4294967283bv32))) || (4bv32 == a10 && !~bvsle32(~bvadd64(~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32), 505228bv32), 4294967283bv32))) || (!~bvsle32(a1, 4294967283bv32) && 1bv32 == a10)) || (((~bvslt32(38bv32, a1) && ~bvsge32(218bv32, a1)) || (~bvslt32(4294967283bv32, a1) && ~bvsge32(38bv32, a1))) && 3bv32 == a10)) || (0bv32 == a10 && ~bvslt32(218bv32, ~bvadd64(~bvsdiv32(a1, 5bv32), 331501bv32)))) || (9bv32 == a19 && 0bv32 == a10)) || (4bv32 == a10 && 8bv32 == a19)) || (9bv32 == a19 && !~bvsle32(~bvadd64(~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32), 505228bv32), 4294967283bv32)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 131.1s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 116.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1523 SDtfs, 1745 SDslu, 98 SDs, 0 SdLazy, 5744 SolverSat, 1049 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5639 GetRequests, 5597 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred 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, 11 MinimizatonAttempts, 1112 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 215 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2712 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 512 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 3588 NumberOfCodeBlocks, 3588 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5634 ConstructedInterpolants, 0 QuantifiedInterpolants, 9487503 SizeOfPredicates, 29 NumberOfNonLiveVariables, 4446 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 3603/4896 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...