./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label53.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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label53.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 af240f3a57e11730008159bfb37736abca76e7de ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label53.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 af240f3a57e11730008159bfb37736abca76e7de ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:14:01,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:14:01,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:14:01,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:14:01,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:14:01,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:14:01,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:14:01,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:14:01,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:14:01,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:14:01,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:14:01,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:14:01,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:14:01,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:14:01,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:14:01,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:14:01,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:14:01,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:14:01,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:14:01,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:14:01,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:14:01,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:14:01,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:14:01,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:14:01,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:14:01,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:14:01,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:14:01,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:14:01,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:14:01,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:14:01,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:14:01,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:14:01,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:14:01,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:14:01,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:14:01,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:14:01,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:14:01,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:14:01,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:14:01,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:14:01,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:14:01,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 17:14:01,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:14:01,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:14:01,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:14:01,407 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 17:14:01,407 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:14:01,408 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 17:14:01,408 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 17:14:01,408 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 17:14:01,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:14:01,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:14:01,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:14:01,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:14:01,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:14:01,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:14:01,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:14:01,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:14:01,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:14:01,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:14:01,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:14:01,411 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 17:14:01,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 17:14:01,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:14:01,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:14:01,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:14:01,411 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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af240f3a57e11730008159bfb37736abca76e7de [2020-12-09 17:14:01,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:14:01,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:14:01,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:14:01,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:14:01,625 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:14:01,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-12-09 17:14:01,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/5eda3a760/43bd7b0d15c3401e9f92840f2f114d7d/FLAG23619dd5a [2020-12-09 17:14:02,106 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:14:02,106 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-12-09 17:14:02,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/5eda3a760/43bd7b0d15c3401e9f92840f2f114d7d/FLAG23619dd5a [2020-12-09 17:14:02,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/5eda3a760/43bd7b0d15c3401e9f92840f2f114d7d [2020-12-09 17:14:02,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:14:02,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:14:02,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:14:02,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:14:02,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:14:02,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e8b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02, skipping insertion in model container [2020-12-09 17:14:02,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:14:02,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:14:02,322 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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/sv-benchmarks/c/eca-rers2012/Problem14_label53.c[5103,5116] [2020-12-09 17:14:02,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:14:02,437 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:14:02,453 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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/sv-benchmarks/c/eca-rers2012/Problem14_label53.c[5103,5116] [2020-12-09 17:14:02,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:14:02,521 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:14:02,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02 WrapperNode [2020-12-09 17:14:02,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:14:02,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:14:02,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:14:02,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:14:02,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:14:02,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:14:02,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:14:02,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:14:02,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... [2020-12-09 17:14:02,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:14:02,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:14:02,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:14:02,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:14:02,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 17:14:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:14:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:14:02,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:14:13,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:14:13,788 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 17:14:13,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:13 BoogieIcfgContainer [2020-12-09 17:14:13,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:14:13,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:14:13,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:14:13,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:14:13,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:14:02" (1/3) ... [2020-12-09 17:14:13,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101a2681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:14:13, skipping insertion in model container [2020-12-09 17:14:13,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:02" (2/3) ... [2020-12-09 17:14:13,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101a2681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:14:13, skipping insertion in model container [2020-12-09 17:14:13,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:13" (3/3) ... [2020-12-09 17:14:13,796 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label53.c [2020-12-09 17:14:13,805 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:14:13,808 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 17:14:13,815 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 17:14:13,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:14:13,835 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:14:13,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:14:13,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:14:13,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:14:13,836 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:14:13,836 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:14:13,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:14:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 17:14:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 17:14:13,847 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:13,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 17:14:13,848 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:13,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:13,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1037750351, now seen corresponding path program 1 times [2020-12-09 17:14:13,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:14:13,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276818443] [2020-12-09 17:14:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:14:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:14,003 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 17:14:14,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276818443] [2020-12-09 17:14:14,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:14:14,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:14:14,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472029079] [2020-12-09 17:14:14,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:14:14,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:14:14,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:14:14,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:14:14,019 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-12-09 17:14:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:14:14,162 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2020-12-09 17:14:14,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:14:14,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 17:14:14,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:14:14,169 INFO L225 Difference]: With dead ends: 29 [2020-12-09 17:14:14,170 INFO L226 Difference]: Without dead ends: 15 [2020-12-09 17:14:14,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:14:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-09 17:14:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-12-09 17:14:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-09 17:14:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-12-09 17:14:14,194 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2020-12-09 17:14:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:14:14,194 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-12-09 17:14:14,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:14:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-12-09 17:14:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 17:14:14,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:14,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2020-12-09 17:14:14,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 17:14:14,195 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:14,196 INFO L82 PathProgramCache]: Analyzing trace with hash -583628241, now seen corresponding path program 1 times [2020-12-09 17:14:14,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:14:14,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063935243] [2020-12-09 17:14:14,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:14:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:14:15,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063935243] [2020-12-09 17:14:15,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599366241] [2020-12-09 17:14:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:15,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-09 17:14:15,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:14:15,313 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 1337 DAG size of output: 79 [2020-12-09 17:14:15,351 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,352 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,354 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,356 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,357 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,358 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,360 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,367 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,373 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,383 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,384 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,391 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,395 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,401 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,409 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,414 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,416 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,430 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,434 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,451 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,458 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,459 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,462 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,465 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,475 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,481 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,486 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,496 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,498 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,500 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,509 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,510 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 17:14:15,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 17:14:15,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 17:14:15,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 17:14:15,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 17:14:15,524 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 7, 5, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,524 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 17:14:15,525 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,525 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 17:14:15,526 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,526 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 17:14:15,526 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-12-09 17:14:15,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:14:15,527 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,527 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 17:14:15,528 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 7, 5, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,528 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 17:14:15,529 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,529 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 17:14:15,530 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,530 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 17:14:15,530 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 1] term [2020-12-09 17:14:15,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:14:15,532 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 17:14:15,533 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 17:14:15,814 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1341 DAG size of output: 1310 [2020-12-09 17:14:15,941 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 1289 [2020-12-09 17:14:16,232 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 2321 DAG size of output: 2073 [2020-12-09 17:14:16,252 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 17:14:16,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1368737956] [2020-12-09 17:14:16,267 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 17:14:16,267 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 17:14:16,270 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 17:14:16,274 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 17:14:16,274 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 17:14:16,390 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 44 [2020-12-09 17:14:16,846 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 44 [2020-12-09 17:14:17,756 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 2478 DAG size of output: 2337 [2020-12-09 17:14:34,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 17:14:34,037 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.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.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 17:14:34,047 INFO L168 Benchmark]: Toolchain (without parser) took 31914.80 ms. Allocated memory was 98.6 MB in the beginning and 658.5 MB in the end (delta: 559.9 MB). Free memory was 56.7 MB in the beginning and 271.7 MB in the end (delta: -215.0 MB). Peak memory consumption was 471.8 MB. Max. memory is 16.1 GB. [2020-12-09 17:14:34,048 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 75.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:14:34,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.34 ms. Allocated memory is still 98.6 MB. Free memory was 56.5 MB in the beginning and 50.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:14:34,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.91 ms. Allocated memory is still 98.6 MB. Free memory was 50.1 MB in the beginning and 69.6 MB in the end (delta: -19.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:14:34,049 INFO L168 Benchmark]: Boogie Preprocessor took 68.86 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 63.6 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 17:14:34,050 INFO L168 Benchmark]: RCFGBuilder took 11105.38 ms. Allocated memory was 98.6 MB in the beginning and 367.0 MB in the end (delta: 268.4 MB). Free memory was 63.1 MB in the beginning and 131.5 MB in the end (delta: -68.3 MB). Peak memory consumption was 243.7 MB. Max. memory is 16.1 GB. [2020-12-09 17:14:34,050 INFO L168 Benchmark]: TraceAbstraction took 20252.54 ms. Allocated memory was 367.0 MB in the beginning and 658.5 MB in the end (delta: 291.5 MB). Free memory was 131.5 MB in the beginning and 271.7 MB in the end (delta: -140.3 MB). Peak memory consumption was 275.0 MB. Max. memory is 16.1 GB. [2020-12-09 17:14:34,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 75.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.34 ms. Allocated memory is still 98.6 MB. Free memory was 56.5 MB in the beginning and 50.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.91 ms. Allocated memory is still 98.6 MB. Free memory was 50.1 MB in the beginning and 69.6 MB in the end (delta: -19.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.86 ms. Allocated memory is still 98.6 MB. Free memory was 69.6 MB in the beginning and 63.6 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11105.38 ms. Allocated memory was 98.6 MB in the beginning and 367.0 MB in the end (delta: 268.4 MB). Free memory was 63.1 MB in the beginning and 131.5 MB in the end (delta: -68.3 MB). Peak memory consumption was 243.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20252.54 ms. Allocated memory was 367.0 MB in the beginning and 658.5 MB in the end (delta: 291.5 MB). Free memory was 131.5 MB in the beginning and 271.7 MB in the end (delta: -140.3 MB). Peak memory consumption was 275.0 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 17:14:35,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:14:35,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:14:35,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:14:35,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:14:35,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:14:35,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:14:35,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:14:35,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:14:35,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:14:35,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:14:35,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:14:35,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:14:35,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:14:35,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:14:35,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:14:35,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:14:35,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:14:35,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:14:35,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:14:35,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:14:35,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:14:35,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:14:35,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:14:35,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:14:35,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:14:35,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:14:35,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:14:35,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:14:35,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:14:35,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:14:35,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:14:35,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:14:35,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:14:35,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:14:35,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:14:35,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:14:35,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:14:35,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:14:35,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:14:35,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:14:35,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 17:14:35,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:14:35,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:14:35,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:14:35,698 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:14:35,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:14:35,698 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:14:35,698 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:14:35,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:14:35,698 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:14:35,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:14:35,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:14:35,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:14:35,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:14:35,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:14:35,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:14:35,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:14:35,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:14:35,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 17:14:35,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:14:35,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:14:35,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:14:35,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:14:35,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:14:35,702 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 17:14:35,702 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 17:14:35,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:14:35,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:14:35,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:14:35,702 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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af240f3a57e11730008159bfb37736abca76e7de [2020-12-09 17:14:35,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:14:35,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:14:35,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:14:35,960 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:14:35,960 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:14:35,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-12-09 17:14:36,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/a01055b01/139b71808b634729afdfc6b123f45954/FLAG7f8136ed3 [2020-12-09 17:14:36,477 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:14:36,478 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/sv-benchmarks/c/eca-rers2012/Problem14_label53.c [2020-12-09 17:14:36,491 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/a01055b01/139b71808b634729afdfc6b123f45954/FLAG7f8136ed3 [2020-12-09 17:14:36,504 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/data/a01055b01/139b71808b634729afdfc6b123f45954 [2020-12-09 17:14:36,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:14:36,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:14:36,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:14:36,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:14:36,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:14:36,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:36,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f8b7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36, skipping insertion in model container [2020-12-09 17:14:36,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:36,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:14:36,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:14:36,713 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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/sv-benchmarks/c/eca-rers2012/Problem14_label53.c[5103,5116] [2020-12-09 17:14:36,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:14:36,868 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:14:36,887 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_f24afd13-2b88-45c7-b5c6-8f714ab7713a/sv-benchmarks/c/eca-rers2012/Problem14_label53.c[5103,5116] [2020-12-09 17:14:36,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:14:36,964 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:14:36,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36 WrapperNode [2020-12-09 17:14:36,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:14:36,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:14:36,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:14:36,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:14:36,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:36,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:14:37,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:14:37,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:14:37,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:14:37,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... [2020-12-09 17:14:37,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:14:37,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:14:37,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:14:37,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:14:37,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 17:14:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:14:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:14:37,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:14:39,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:14:39,508 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 17:14:39,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:39 BoogieIcfgContainer [2020-12-09 17:14:39,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:14:39,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:14:39,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:14:39,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:14:39,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:14:36" (1/3) ... [2020-12-09 17:14:39,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4327fe6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:14:39, skipping insertion in model container [2020-12-09 17:14:39,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:14:36" (2/3) ... [2020-12-09 17:14:39,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4327fe6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:14:39, skipping insertion in model container [2020-12-09 17:14:39,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:39" (3/3) ... [2020-12-09 17:14:39,515 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label53.c [2020-12-09 17:14:39,525 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:14:39,528 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 17:14:39,535 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 17:14:39,555 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:14:39,555 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:14:39,555 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:14:39,555 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:14:39,555 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:14:39,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:14:39,555 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:14:39,555 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:14:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-09 17:14:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-09 17:14:39,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:39,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:14:39,578 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:39,582 INFO L82 PathProgramCache]: Analyzing trace with hash 301649817, now seen corresponding path program 1 times [2020-12-09 17:14:39,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:14:39,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713997401] [2020-12-09 17:14:39,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:39,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 17:14:39,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:14:39,749 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 17:14:39,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:14:39,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713997401] [2020-12-09 17:14:39,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:14:39,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:14:39,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208635566] [2020-12-09 17:14:39,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:14:39,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:14:39,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:14:39,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:14:39,768 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-09 17:14:42,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:14:42,806 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-09 17:14:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:14:42,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-12-09 17:14:42,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:14:42,817 INFO L225 Difference]: With dead ends: 669 [2020-12-09 17:14:42,817 INFO L226 Difference]: Without dead ends: 360 [2020-12-09 17:14:42,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 17:14:42,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-09 17:14:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-09 17:14:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-09 17:14:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 522 transitions. [2020-12-09 17:14:42,862 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 522 transitions. Word has length 49 [2020-12-09 17:14:42,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:14:42,863 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 522 transitions. [2020-12-09 17:14:42,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:14:42,863 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 522 transitions. [2020-12-09 17:14:42,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-09 17:14:42,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:42,867 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, 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] [2020-12-09 17:14:43,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 17:14:43,068 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:43,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:43,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1022482583, now seen corresponding path program 1 times [2020-12-09 17:14:43,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:14:43,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061845011] [2020-12-09 17:14:43,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:43,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 17:14:43,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:14:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:14:43,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:14:43,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061845011] [2020-12-09 17:14:43,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:14:43,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:14:43,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538006329] [2020-12-09 17:14:43,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:14:43,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:14:43,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:14:43,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:14:43,308 INFO L87 Difference]: Start difference. First operand 360 states and 522 transitions. Second operand 3 states. [2020-12-09 17:14:46,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:14:46,503 INFO L93 Difference]: Finished difference Result 1074 states and 1561 transitions. [2020-12-09 17:14:46,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:14:46,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-12-09 17:14:46,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:14:46,507 INFO L225 Difference]: With dead ends: 1074 [2020-12-09 17:14:46,507 INFO L226 Difference]: Without dead ends: 716 [2020-12-09 17:14:46,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 17:14:46,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-09 17:14:46,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-09 17:14:46,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-09 17:14:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 962 transitions. [2020-12-09 17:14:46,536 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 962 transitions. Word has length 115 [2020-12-09 17:14:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:14:46,536 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 962 transitions. [2020-12-09 17:14:46,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:14:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 962 transitions. [2020-12-09 17:14:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-09 17:14:46,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:46,538 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, 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] [2020-12-09 17:14:46,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 17:14:46,739 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:46,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1611979118, now seen corresponding path program 1 times [2020-12-09 17:14:46,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:14:46,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910754863] [2020-12-09 17:14:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:46,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 17:14:46,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:14:46,952 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:14:46,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:14:46,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910754863] [2020-12-09 17:14:46,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:14:46,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:14:46,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186411290] [2020-12-09 17:14:46,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:14:46,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:14:46,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:14:46,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:14:46,954 INFO L87 Difference]: Start difference. First operand 716 states and 962 transitions. Second operand 3 states. [2020-12-09 17:14:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:14:49,701 INFO L93 Difference]: Finished difference Result 1964 states and 2655 transitions. [2020-12-09 17:14:49,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:14:49,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-09 17:14:49,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:14:49,706 INFO L225 Difference]: With dead ends: 1964 [2020-12-09 17:14:49,707 INFO L226 Difference]: Without dead ends: 1250 [2020-12-09 17:14:49,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 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 17:14:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-09 17:14:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-12-09 17:14:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-09 17:14:49,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1556 transitions. [2020-12-09 17:14:49,728 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1556 transitions. Word has length 117 [2020-12-09 17:14:49,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:14:49,729 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1556 transitions. [2020-12-09 17:14:49,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:14:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1556 transitions. [2020-12-09 17:14:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-09 17:14:49,732 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:49,732 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:14:49,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 17:14:49,934 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:49,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:49,934 INFO L82 PathProgramCache]: Analyzing trace with hash 2139811195, now seen corresponding path program 1 times [2020-12-09 17:14:49,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:14:49,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234485340] [2020-12-09 17:14:49,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:50,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 17:14:50,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:14:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-09 17:14:50,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:14:50,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234485340] [2020-12-09 17:14:50,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:14:50,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:14:50,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986156422] [2020-12-09 17:14:50,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:14:50,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:14:50,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:14:50,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:14:50,220 INFO L87 Difference]: Start difference. First operand 1250 states and 1556 transitions. Second operand 4 states. [2020-12-09 17:14:52,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:14:52,530 INFO L93 Difference]: Finished difference Result 2171 states and 2741 transitions. [2020-12-09 17:14:52,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:14:52,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2020-12-09 17:14:52,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:14:52,535 INFO L225 Difference]: With dead ends: 2171 [2020-12-09 17:14:52,535 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 17:14:52,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:14:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 17:14:52,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 17:14:52,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 17:14:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1327 transitions. [2020-12-09 17:14:52,556 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1327 transitions. Word has length 198 [2020-12-09 17:14:52,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:14:52,556 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1327 transitions. [2020-12-09 17:14:52,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:14:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1327 transitions. [2020-12-09 17:14:52,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-12-09 17:14:52,558 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:52,559 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, 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, 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 17:14:52,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 17:14:52,761 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:52,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:52,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1722742746, now seen corresponding path program 1 times [2020-12-09 17:14:52,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:14:52,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799025328] [2020-12-09 17:14:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:52,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 17:14:52,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:14:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-09 17:14:53,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:14:53,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799025328] [2020-12-09 17:14:53,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:14:53,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:14:53,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613143269] [2020-12-09 17:14:53,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:14:53,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:14:53,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:14:53,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:14:53,186 INFO L87 Difference]: Start difference. First operand 1072 states and 1327 transitions. Second operand 3 states. [2020-12-09 17:14:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:14:55,241 INFO L93 Difference]: Finished difference Result 1786 states and 2287 transitions. [2020-12-09 17:14:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:14:55,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-12-09 17:14:55,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:14:55,246 INFO L225 Difference]: With dead ends: 1786 [2020-12-09 17:14:55,246 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 17:14:55,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 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 17:14:55,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 17:14:55,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 17:14:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 17:14:55,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1321 transitions. [2020-12-09 17:14:55,262 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1321 transitions. Word has length 224 [2020-12-09 17:14:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:14:55,263 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1321 transitions. [2020-12-09 17:14:55,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:14:55,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1321 transitions. [2020-12-09 17:14:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-12-09 17:14:55,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:14:55,268 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, 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, 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 17:14:55,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 17:14:55,468 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:14:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:14:55,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1080393271, now seen corresponding path program 1 times [2020-12-09 17:14:55,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:14:55,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906465650] [2020-12-09 17:14:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:14:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:14:55,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 17:14:55,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:14:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 140 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 17:14:55,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:14:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 17:14:56,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906465650] [2020-12-09 17:14:56,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 17:14:56,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 17:14:56,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087722320] [2020-12-09 17:14:56,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:14:56,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:14:56,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:14:56,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:14:56,525 INFO L87 Difference]: Start difference. First operand 1072 states and 1321 transitions. Second operand 3 states. [2020-12-09 17:15:03,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:15:03,199 INFO L93 Difference]: Finished difference Result 2142 states and 2812 transitions. [2020-12-09 17:15:03,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:15:03,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2020-12-09 17:15:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:15:03,204 INFO L225 Difference]: With dead ends: 2142 [2020-12-09 17:15:03,204 INFO L226 Difference]: Without dead ends: 1428 [2020-12-09 17:15:03,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 650 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:15:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-12-09 17:15:03,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-12-09 17:15:03,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-09 17:15:03,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1767 transitions. [2020-12-09 17:15:03,226 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1767 transitions. Word has length 328 [2020-12-09 17:15:03,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:15:03,227 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1767 transitions. [2020-12-09 17:15:03,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:15:03,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1767 transitions. [2020-12-09 17:15:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-12-09 17:15:03,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:15:03,237 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:15:03,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 17:15:03,439 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:15:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:15:03,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1673003691, now seen corresponding path program 1 times [2020-12-09 17:15:03,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:15:03,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447552804] [2020-12-09 17:15:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:15:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:15:03,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 17:15:03,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:15:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 417 proven. 159 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-12-09 17:15:04,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:15:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-12-09 17:15:04,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447552804] [2020-12-09 17:15:04,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 17:15:04,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 17:15:04,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069608157] [2020-12-09 17:15:04,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:15:04,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:15:04,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:15:04,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:15:04,858 INFO L87 Difference]: Start difference. First operand 1428 states and 1767 transitions. Second operand 3 states. [2020-12-09 17:15:10,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:15:10,823 INFO L93 Difference]: Finished difference Result 3210 states and 4150 transitions. [2020-12-09 17:15:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:15:10,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 439 [2020-12-09 17:15:10,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:15:10,831 INFO L225 Difference]: With dead ends: 3210 [2020-12-09 17:15:10,831 INFO L226 Difference]: Without dead ends: 2140 [2020-12-09 17:15:10,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 872 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:15:10,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-09 17:15:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-09 17:15:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-09 17:15:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2666 transitions. [2020-12-09 17:15:10,867 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2666 transitions. Word has length 439 [2020-12-09 17:15:10,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:15:10,867 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2666 transitions. [2020-12-09 17:15:10,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:15:10,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2666 transitions. [2020-12-09 17:15:10,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2020-12-09 17:15:10,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:15:10,870 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:15:11,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 17:15:11,072 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:15:11,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:15:11,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1243691133, now seen corresponding path program 1 times [2020-12-09 17:15:11,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:15:11,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484390756] [2020-12-09 17:15:11,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:15:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:15:11,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 17:15:11,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:15:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 0 proven. 653 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-12-09 17:15:11,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:15:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 481 proven. 172 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-12-09 17:15:13,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484390756] [2020-12-09 17:15:13,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [991580965] [2020-12-09 17:15:13,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:15:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:15:13,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 17:15:13,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:15:14,237 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 17:15:14,238 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:15:14,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:15:14,243 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:15:14,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:15:14,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:15:14,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:15:14,251 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:15:14,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:15:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 433 proven. 47 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 17:15:14,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:15:14,713 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 17:15:14,714 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 17:15:15,015 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 456 proven. 24 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 17:15:15,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123324444] [2020-12-09 17:15:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:15:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:15:15,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 17:15:15,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:15:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 336 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 17:15:15,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:15:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 336 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 17:15:16,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 17:15:16,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 7, 7, 4, 4] total 18 [2020-12-09 17:15:16,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713047175] [2020-12-09 17:15:16,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 17:15:16,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:15:16,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 17:15:16,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2020-12-09 17:15:16,180 INFO L87 Difference]: Start difference. First operand 2140 states and 2666 transitions. Second operand 18 states. [2020-12-09 17:15:17,715 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 17:15:19,320 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 17:15:30,958 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 17:15:31,591 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 17:15:48,926 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2020-12-09 17:15:50,516 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 17:15:54,802 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-09 17:15:55,987 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 17 [2020-12-09 17:16:28,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:16:28,319 INFO L93 Difference]: Finished difference Result 5961 states and 7553 transitions. [2020-12-09 17:16:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-09 17:16:28,322 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 455 [2020-12-09 17:16:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:16:28,335 INFO L225 Difference]: With dead ends: 5961 [2020-12-09 17:16:28,335 INFO L226 Difference]: Without dead ends: 3920 [2020-12-09 17:16:28,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2749 GetRequests, 2715 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=232, Invalid=824, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 17:16:28,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-09 17:16:28,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2020-12-09 17:16:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-09 17:16:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3861 transitions. [2020-12-09 17:16:28,380 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3861 transitions. Word has length 455 [2020-12-09 17:16:28,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:16:28,381 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3861 transitions. [2020-12-09 17:16:28,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 17:16:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3861 transitions. [2020-12-09 17:16:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-12-09 17:16:28,384 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:16:28,385 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:16:28,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:16:28,989 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:16:28,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:16:28,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1079575501, now seen corresponding path program 1 times [2020-12-09 17:16:28,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:16:28,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100518470] [2020-12-09 17:16:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 17:16:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:16:29,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 17:16:29,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:16:31,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 234 proven. 898 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 17:16:31,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:16:32,757 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 17:16:32,757 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 17:16:35,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 864 proven. 268 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 17:16:35,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100518470] [2020-12-09 17:16:35,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [898502248] [2020-12-09 17:16:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 17:16:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:16:36,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 17:16:36,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:16:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-12-09 17:16:36,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:16:36,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 17:16:36,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 21 [2020-12-09 17:16:36,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168984509] [2020-12-09 17:16:36,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:16:36,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:16:36,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:16:36,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-12-09 17:16:36,868 INFO L87 Difference]: Start difference. First operand 3564 states and 3861 transitions. Second operand 4 states. [2020-12-09 17:16:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:16:40,157 INFO L93 Difference]: Finished difference Result 8082 states and 8988 transitions. [2020-12-09 17:16:40,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 17:16:40,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 703 [2020-12-09 17:16:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:16:40,174 INFO L225 Difference]: With dead ends: 8082 [2020-12-09 17:16:40,174 INFO L226 Difference]: Without dead ends: 5232 [2020-12-09 17:16:40,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2108 GetRequests, 2080 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-12-09 17:16:40,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5232 states. [2020-12-09 17:16:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5232 to 5166. [2020-12-09 17:16:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5166 states. [2020-12-09 17:16:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5654 transitions. [2020-12-09 17:16:40,238 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5654 transitions. Word has length 703 [2020-12-09 17:16:40,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:16:40,239 INFO L481 AbstractCegarLoop]: Abstraction has 5166 states and 5654 transitions. [2020-12-09 17:16:40,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:16:40,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5654 transitions. [2020-12-09 17:16:40,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-12-09 17:16:40,244 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:16:40,244 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:16:40,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 17:16:40,646 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:16:40,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:16:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash -287829589, now seen corresponding path program 1 times [2020-12-09 17:16:40,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:16:40,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752319722] [2020-12-09 17:16:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:16:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:16:40,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 17:16:40,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:16:42,068 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-12-09 17:16:42,266 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-12-09 17:16:42,350 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 17:16:42,350 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 17:16:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 0 proven. 1541 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-12-09 17:16:44,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:16:45,231 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 17:16:45,231 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 17:16:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 900 proven. 641 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-12-09 17:16:48,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752319722] [2020-12-09 17:16:48,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [550750646] [2020-12-09 17:16:48,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/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 17:16:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:16:48,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 17:16:48,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:16:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 281 proven. 1307 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 17:16:49,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:16:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 933 proven. 655 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 17:16:52,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155031059] [2020-12-09 17:16:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:16:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:16:52,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 17:16:52,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:16:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 281 proven. 1307 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 17:16:53,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:16:54,713 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 17:16:56,048 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 17:16:57,688 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 17:17:00,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 886 proven. 702 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 17:17:00,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 17:17:00,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 6, 7, 5, 6] total 31 [2020-12-09 17:17:00,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715378153] [2020-12-09 17:17:00,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-12-09 17:17:00,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:17:00,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-12-09 17:17:00,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2020-12-09 17:17:00,780 INFO L87 Difference]: Start difference. First operand 5166 states and 5654 transitions. Second operand 31 states. [2020-12-09 17:17:33,631 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-09 17:17:34,839 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-09 17:17:36,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:17:36,270 INFO L93 Difference]: Finished difference Result 11736 states and 12850 transitions. [2020-12-09 17:17:36,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-09 17:17:36,271 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 785 [2020-12-09 17:17:36,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:17:36,292 INFO L225 Difference]: With dead ends: 11736 [2020-12-09 17:17:36,292 INFO L226 Difference]: Without dead ends: 6928 [2020-12-09 17:17:36,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4730 GetRequests, 4663 SyntacticMatches, 22 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=589, Invalid=1573, Unknown=0, NotChecked=0, Total=2162 [2020-12-09 17:17:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2020-12-09 17:17:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 5869. [2020-12-09 17:17:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5869 states. [2020-12-09 17:17:36,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 6159 transitions. [2020-12-09 17:17:36,369 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 6159 transitions. Word has length 785 [2020-12-09 17:17:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:17:36,370 INFO L481 AbstractCegarLoop]: Abstraction has 5869 states and 6159 transitions. [2020-12-09 17:17:36,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-12-09 17:17:36,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 6159 transitions. [2020-12-09 17:17:36,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2020-12-09 17:17:36,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:17:36,377 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:17:36,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2020-12-09 17:17:36,980 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:17:36,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:17:36,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1826834751, now seen corresponding path program 1 times [2020-12-09 17:17:36,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:17:36,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949873831] [2020-12-09 17:17:36,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-12-09 17:17:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:17:37,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 17:17:37,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:17:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 1561 proven. 420 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2020-12-09 17:17:41,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:17:41,948 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 17:17:41,948 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 17:17:45,030 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 19 DAG size of output: 7 [2020-12-09 17:17:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 1981 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2020-12-09 17:17:47,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949873831] [2020-12-09 17:17:47,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 17:17:47,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2020-12-09 17:17:47,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424717799] [2020-12-09 17:17:47,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 17:17:47,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:17:47,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 17:17:47,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2020-12-09 17:17:47,773 INFO L87 Difference]: Start difference. First operand 5869 states and 6159 transitions. Second operand 11 states. [2020-12-09 17:17:51,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:17:51,811 INFO L93 Difference]: Finished difference Result 11544 states and 12124 transitions. [2020-12-09 17:17:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 17:17:51,818 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 964 [2020-12-09 17:17:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:17:51,837 INFO L225 Difference]: With dead ends: 11544 [2020-12-09 17:17:51,837 INFO L226 Difference]: Without dead ends: 6024 [2020-12-09 17:17:51,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1926 GetRequests, 1862 SyntacticMatches, 46 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2020-12-09 17:17:51,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6024 states. [2020-12-09 17:17:51,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6024 to 6024. [2020-12-09 17:17:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6024 states. [2020-12-09 17:17:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6024 states to 6024 states and 6315 transitions. [2020-12-09 17:17:51,901 INFO L78 Accepts]: Start accepts. Automaton has 6024 states and 6315 transitions. Word has length 964 [2020-12-09 17:17:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:17:51,901 INFO L481 AbstractCegarLoop]: Abstraction has 6024 states and 6315 transitions. [2020-12-09 17:17:51,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 17:17:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6024 states and 6315 transitions. [2020-12-09 17:17:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2020-12-09 17:17:51,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:17:51,909 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:17:52,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-12-09 17:17:52,111 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:17:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:17:52,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1004294170, now seen corresponding path program 1 times [2020-12-09 17:17:52,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:17:52,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822114306] [2020-12-09 17:17:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-12-09 17:17:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:17:52,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 17:17:52,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:17:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3137 backedges. 671 proven. 2285 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2020-12-09 17:17:55,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:17:56,588 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 1] term [2020-12-09 17:17:56,588 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 17:18:02,134 WARN L197 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2020-12-09 17:18:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3137 backedges. 2475 proven. 118 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-12-09 17:18:04,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822114306] [2020-12-09 17:18:04,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [589523757] [2020-12-09 17:18:04,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt [2020-12-09 17:18:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:18:05,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 17:18:05,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:18:06,057 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-12-09 17:18:06,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:18:06,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 17:18:06,241 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 17:18:06,245 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 17:18:06,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:18:06,251 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 17:18:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3137 backedges. 1142 proven. 47 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 17:18:07,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:18:08,482 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-09 17:18:08,482 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-09 17:18:08,483 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 17:18:08,484 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-09 17:18:08,486 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-09 17:18:08,486 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-09 17:18:08,488 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 17:18:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3137 backedges. 1142 proven. 47 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 17:18:09,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040536433] [2020-12-09 17:18:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:18:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:18:10,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 17:18:10,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:18:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3137 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2020-12-09 17:18:11,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:18:11,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 17:18:11,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13, 12, 9, 9] total 37 [2020-12-09 17:18:11,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933259802] [2020-12-09 17:18:11,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:18:11,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:18:11,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:18:11,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2020-12-09 17:18:11,580 INFO L87 Difference]: Start difference. First operand 6024 states and 6315 transitions. Second operand 4 states. [2020-12-09 17:18:13,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:18:13,502 INFO L93 Difference]: Finished difference Result 11530 states and 12085 transitions. [2020-12-09 17:18:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:18:13,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1041 [2020-12-09 17:18:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:18:13,503 INFO L225 Difference]: With dead ends: 11530 [2020-12-09 17:18:13,503 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 17:18:13,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5200 GetRequests, 5163 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2020-12-09 17:18:13,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 17:18:13,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 17:18:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 17:18:13,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 17:18:13,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1041 [2020-12-09 17:18:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:18:13,510 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 17:18:13,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:18:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 17:18:13,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 17:18:14,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3,19 cvc4 --incremental --print-success --lang smt,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:18:14,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 17:18:14,301 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 150 [2020-12-09 17:18:16,171 WARN L197 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 145 DAG size of output: 64 [2020-12-09 17:18:18,010 WARN L197 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 145 DAG size of output: 64 [2020-12-09 17:18:18,012 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-09 17:18:18,012 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 17:18:18,012 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-09 17:18:18,012 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-09 17:18:18,012 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-09 17:18:18,012 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,012 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-09 17:18:18,013 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 17:18:18,014 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,015 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-09 17:18:18,016 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 17:18:18,017 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-09 17:18:18,018 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-09 17:18:18,019 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 17:18:18,020 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,021 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,022 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~a24~0)) (.cse11 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367247 32))))) (.cse6 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse10 (= (_ bv9 32) ~a21~0)) (.cse9 (= (_ bv8 32) ~a21~0))) (let ((.cse1 (or (not (bvslt (_ bv11 32) ~a12~0)) (not (bvsge (_ bv80 32) ~a12~0)))) (.cse5 (= (_ bv5 32) ~a15~0)) (.cse7 (= (_ bv6 32) ~a21~0)) (.cse3 (or .cse11 (and .cse6 (= (_ bv8 32) ~a15~0) (or .cse10 (= (_ bv10 32) ~a21~0) .cse9)))) (.cse4 (or .cse11 (not (= (_ bv0 32) (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967291 32)))) (not .cse0))) (.cse2 (not .cse6)) (.cse8 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32)))) (or (and .cse0 .cse1 .cse2 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367312 32))))) (and .cse0 .cse3 .cse4 (not (bvslt (_ bv80 32) ~a12~0)) .cse1) (and .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse5 .cse7) (and .cse0 .cse3 .cse4 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse8) (and .cse0 (not (= (_ bv7 32) ~a15~0)) .cse2 .cse8)))) [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,023 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 17:18:18,024 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,025 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-09 17:18:18,025 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~a24~0)) (.cse11 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367247 32))))) (.cse6 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse10 (= (_ bv9 32) ~a21~0)) (.cse9 (= (_ bv8 32) ~a21~0))) (let ((.cse1 (or (not (bvslt (_ bv11 32) ~a12~0)) (not (bvsge (_ bv80 32) ~a12~0)))) (.cse5 (= (_ bv5 32) ~a15~0)) (.cse7 (= (_ bv6 32) ~a21~0)) (.cse3 (or .cse11 (and .cse6 (= (_ bv8 32) ~a15~0) (or .cse10 (= (_ bv10 32) ~a21~0) .cse9)))) (.cse4 (or .cse11 (not (= (_ bv0 32) (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967291 32)))) (not .cse0))) (.cse2 (not .cse6)) (.cse8 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32)))) (or (and .cse0 .cse1 .cse2 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367312 32))))) (and .cse0 .cse3 .cse4 (not (bvslt (_ bv80 32) ~a12~0)) .cse1) (and .cse5 .cse6 .cse3 .cse7) (and .cse0 .cse5 .cse7) (and .cse0 .cse3 .cse4 .cse8 .cse9) (and .cse0 .cse10 .cse2 .cse8) (and .cse0 (not (= (_ bv7 32) ~a15~0)) .cse2 .cse8)))) [2020-12-09 17:18:18,025 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-09 17:18:18,027 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-09 17:18:18,027 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 17:18:18,027 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 17:18:18,027 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 17:18:18,028 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 17:18:18,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:18:18 BoogieIcfgContainer [2020-12-09 17:18:18,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:18:18,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:18:18,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:18:18,046 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:18:18,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:14:39" (3/4) ... [2020-12-09 17:18:18,048 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 17:18:18,069 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 17:18:18,070 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 17:18:18,072 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 17:18:18,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 17:18:18,177 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f24afd13-2b88-45c7-b5c6-8f714ab7713a/bin/utaipan/witness.graphml [2020-12-09 17:18:18,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:18:18,178 INFO L168 Benchmark]: Toolchain (without parser) took 221669.71 ms. Allocated memory was 60.8 MB in the beginning and 497.0 MB in the end (delta: 436.2 MB). Free memory was 39.9 MB in the beginning and 384.1 MB in the end (delta: -344.1 MB). Peak memory consumption was 90.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:18:18,178 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 43.4 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:18:18,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.68 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 39.6 MB in the beginning and 51.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:18:18,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.44 ms. Allocated memory is still 75.5 MB. Free memory was 51.3 MB in the beginning and 44.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 17:18:18,179 INFO L168 Benchmark]: Boogie Preprocessor took 51.26 ms. Allocated memory is still 75.5 MB. Free memory was 44.9 MB in the beginning and 39.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 17:18:18,179 INFO L168 Benchmark]: RCFGBuilder took 2434.06 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 39.7 MB in the beginning and 50.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-12-09 17:18:18,179 INFO L168 Benchmark]: TraceAbstraction took 218534.78 ms. Allocated memory was 94.4 MB in the beginning and 497.0 MB in the end (delta: 402.7 MB). Free memory was 50.1 MB in the beginning and 402.9 MB in the end (delta: -352.9 MB). Peak memory consumption was 344.6 MB. Max. memory is 16.1 GB. [2020-12-09 17:18:18,179 INFO L168 Benchmark]: Witness Printer took 131.12 ms. Allocated memory is still 497.0 MB. Free memory was 402.9 MB in the beginning and 384.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 17:18:18,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 43.4 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 455.68 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 39.6 MB in the beginning and 51.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.44 ms. Allocated memory is still 75.5 MB. Free memory was 51.3 MB in the beginning and 44.9 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.26 ms. Allocated memory is still 75.5 MB. Free memory was 44.9 MB in the beginning and 39.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2434.06 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 39.7 MB in the beginning and 50.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 218534.78 ms. Allocated memory was 94.4 MB in the beginning and 497.0 MB in the end (delta: 402.7 MB). Free memory was 50.1 MB in the beginning and 402.9 MB in the end (delta: -352.9 MB). Peak memory consumption was 344.6 MB. Max. memory is 16.1 GB. * Witness Printer took 131.12 ms. Allocated memory is still 497.0 MB. Free memory was 402.9 MB in the beginning and 384.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 161]: 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((1bv32 == a24 && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12))) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367312bv32))) || ((((1bv32 == a24 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && ((!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || !(0bv32 == ~bvadd64(input, 4294967291bv32))) || !(1bv32 == a24))) && !~bvslt32(80bv32, a12)) && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12)))) || (((5bv32 == a15 && ~bvsle32(a12, 4294967253bv32)) && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && 6bv32 == a21)) || ((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21)) || ((((1bv32 == a24 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && ((!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || !(0bv32 == ~bvadd64(input, 4294967291bv32))) || !(1bv32 == a24))) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 8bv32 == a21)) || (((1bv32 == a24 && 9bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32))) || (((1bv32 == a24 && !(7bv32 == a15)) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((1bv32 == a24 && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12))) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367312bv32))) || ((((1bv32 == a24 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && ((!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || !(0bv32 == ~bvadd64(input, 4294967291bv32))) || !(1bv32 == a24))) && !~bvslt32(80bv32, a12)) && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12)))) || (((5bv32 == a15 && ~bvsle32(a12, 4294967253bv32)) && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && 6bv32 == a21)) || ((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21)) || ((((1bv32 == a24 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && ((!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || !(0bv32 == ~bvadd64(input, 4294967291bv32))) || !(1bv32 == a24))) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 8bv32 == a21)) || (((1bv32 == a24 && 9bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32))) || (((1bv32 == a24 && !(7bv32 == a15)) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 214.5s, OverallIterations: 12, TraceHistogramMax: 9, AutomataDifference: 143.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 933 SDtfs, 7573 SDslu, 301 SDs, 0 SdLazy, 21474 SolverSat, 2656 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 126.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18941 GetRequests, 18697 SyntacticMatches, 83 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1356 ImplicationChecksByTransitivity, 28.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6024occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1481 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 89 NumberOfFragments, 449 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3968 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4192 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 62.6s InterpolantComputationTime, 10683 NumberOfCodeBlocks, 10683 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 18888 ConstructedInterpolants, 0 QuantifiedInterpolants, 156832208 SizeOfPredicates, 69 NumberOfNonLiveVariables, 12145 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 31 InterpolantComputations, 10 PerfectInterpolantSequences, 31238/42952 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...