./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label38.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_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label38.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 3f36b3574a222deadefa083717d319eba8aaf260 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label38.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 3f36b3574a222deadefa083717d319eba8aaf260 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:11:43,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:11:43,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:11:43,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:11:43,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:11:43,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:11:43,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:11:43,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:11:43,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:11:43,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:11:43,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:11:43,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:11:43,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:11:43,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:11:43,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:11:43,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:11:43,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:11:43,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:11:43,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:11:43,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:11:43,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:11:43,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:11:43,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:11:43,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:11:43,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:11:43,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:11:43,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:11:43,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:11:43,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:11:43,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:11:43,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:11:43,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:11:43,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:11:43,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:11:43,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:11:43,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:11:43,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:11:43,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:11:43,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:11:43,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:11:43,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:11:43,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 11:11:43,180 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:11:43,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:11:43,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:11:43,182 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:11:43,182 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:11:43,182 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:11:43,182 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 11:11:43,182 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:11:43,183 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:11:43,183 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 11:11:43,183 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 11:11:43,183 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:11:43,183 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 11:11:43,183 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 11:11:43,183 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 11:11:43,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:11:43,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:11:43,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 11:11:43,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:11:43,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:11:43,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:11:43,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:11:43,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:11:43,185 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:11:43,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:11:43,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:11:43,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:11:43,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:11:43,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:11:43,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:11:43,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:11:43,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:11:43,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:11:43,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:11:43,186 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 11:11:43,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 11:11:43,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:11:43,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:11:43,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:11:43,187 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_a463bfc7-9ab9-4215-b066-2b1004bd636f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f36b3574a222deadefa083717d319eba8aaf260 [2020-12-09 11:11:43,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:11:43,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:11:43,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:11:43,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:11:43,371 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:11:43,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label38.c [2020-12-09 11:11:43,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/27ddcd5fd/d7f3bf7a64c74ccc9a91d1f45e536789/FLAG622a10cfa [2020-12-09 11:11:43,872 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:11:43,872 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/sv-benchmarks/c/eca-rers2012/Problem14_label38.c [2020-12-09 11:11:43,885 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/27ddcd5fd/d7f3bf7a64c74ccc9a91d1f45e536789/FLAG622a10cfa [2020-12-09 11:11:43,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/27ddcd5fd/d7f3bf7a64c74ccc9a91d1f45e536789 [2020-12-09 11:11:43,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:11:43,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:11:43,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:11:43,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:11:43,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:11:43,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:11:43" (1/1) ... [2020-12-09 11:11:43,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe087a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:43, skipping insertion in model container [2020-12-09 11:11:43,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:11:43" (1/1) ... [2020-12-09 11:11:43,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:11:43,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:11:44,088 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_a463bfc7-9ab9-4215-b066-2b1004bd636f/sv-benchmarks/c/eca-rers2012/Problem14_label38.c[5189,5202] [2020-12-09 11:11:44,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:11:44,201 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:11:44,217 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_a463bfc7-9ab9-4215-b066-2b1004bd636f/sv-benchmarks/c/eca-rers2012/Problem14_label38.c[5189,5202] [2020-12-09 11:11:44,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:11:44,289 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:11:44,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44 WrapperNode [2020-12-09 11:11:44,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:11:44,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:11:44,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:11:44,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:11:44,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:11:44,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:11:44,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:11:44,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:11:44,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... [2020-12-09 11:11:44,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:11:44,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:11:44,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:11:44,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:11:44,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:11:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 11:11:44,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:11:44,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:11:44,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:11:57,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:11:57,158 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 11:11:57,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:11:57 BoogieIcfgContainer [2020-12-09 11:11:57,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:11:57,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:11:57,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:11:57,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:11:57,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:11:43" (1/3) ... [2020-12-09 11:11:57,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc2892f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:11:57, skipping insertion in model container [2020-12-09 11:11:57,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:11:44" (2/3) ... [2020-12-09 11:11:57,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc2892f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:11:57, skipping insertion in model container [2020-12-09 11:11:57,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:11:57" (3/3) ... [2020-12-09 11:11:57,165 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-12-09 11:11:57,175 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:11:57,178 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 11:11:57,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 11:11:57,200 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:11:57,200 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:11:57,200 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:11:57,200 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:11:57,200 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:11:57,200 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:11:57,200 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:11:57,200 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:11:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 11:11:57,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 11:11:57,211 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:11:57,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 11:11:57,212 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:11:57,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:11:57,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1037750607, now seen corresponding path program 1 times [2020-12-09 11:11:57,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:11:57,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926223448] [2020-12-09 11:11:57,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:11:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:11:57,350 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 11:11:57,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926223448] [2020-12-09 11:11:57,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:11:57,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:11:57,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199896717] [2020-12-09 11:11:57,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:11:57,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 11:11:57,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:11:57,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 11:11:57,365 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 11:11:57,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:11:57,426 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 11:11:57,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:11:57,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 11:11:57,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:11:57,436 INFO L225 Difference]: With dead ends: 23 [2020-12-09 11:11:57,436 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 11:11:57,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 11:11:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 11:11:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 11:11:57,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 11:11:57,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 11:11:57,467 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 11:11:57,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:11:57,467 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 11:11:57,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:11:57,468 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 11:11:57,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 11:11:57,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:11:57,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 11:11:57,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 11:11:57,469 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:11:57,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:11:57,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1934987465, now seen corresponding path program 1 times [2020-12-09 11:11:57,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:11:57,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594205119] [2020-12-09 11:11:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:11:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:11:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:11:57,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594205119] [2020-12-09 11:11:57,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220118114] [2020-12-09 11:11:57,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:11:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:11:57,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:11:57,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:11:58,115 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1339 DAG size of output: 83 [2020-12-09 11:11:58,172 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,174 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,176 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,178 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,179 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,182 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,183 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,187 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,188 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,196 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,200 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,205 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,216 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,218 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,222 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,225 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,228 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,231 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,232 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,233 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,239 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,243 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,245 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,247 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,248 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,249 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,251 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,256 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,261 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,262 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,265 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,268 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:11:58,271 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,272 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,275 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,279 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,281 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,281 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,284 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,288 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,288 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,289 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,290 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,292 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,293 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,294 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,295 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,300 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,303 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,304 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,305 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,309 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,314 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,316 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,316 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,317 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,318 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,319 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,323 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:11:58,325 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,327 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,329 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,332 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,336 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:11:58,337 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 11:11:58,338 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,339 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,339 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,340 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,343 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 11:11:58,344 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,347 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:11:58,347 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,348 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,350 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,353 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 11:11:58,354 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 11:11:58,354 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,355 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,357 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 11:11:58,360 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 11:11:58,361 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 11:11:58,362 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 11:11:58,364 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 11:11:58,371 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 14, 4, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,372 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 11:11:58,373 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,373 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 11:11:58,373 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,374 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 11:11:58,374 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,375 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 11:11:58,375 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-09 11:11:58,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,376 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,376 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,377 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,377 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,378 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,378 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 11:11:58,379 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 11:11:58,379 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 11:11:58,380 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 11:11:58,380 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,383 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 11:11:58,384 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,384 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,391 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 11:11:58,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,394 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,395 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,395 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,398 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,401 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,405 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,408 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,409 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,411 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,414 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,415 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,417 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,419 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,423 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 11:11:58,424 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,424 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,428 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 11:11:58,429 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,431 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,432 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,432 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,434 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,441 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 11:11:58,441 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,444 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,445 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,451 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,453 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,453 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,458 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 11:11:58,458 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,459 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,459 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,461 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,462 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,466 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 11:11:58,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,468 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,469 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,469 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,474 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 11:11:58,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,477 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,480 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,480 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,482 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,484 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,487 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,488 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,494 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 11:11:58,494 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,496 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,497 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,498 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,503 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,504 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,508 INFO L639 QuantifierPusher]: Distributing 18 conjuncts over 2 disjuncts [2020-12-09 11:11:58,509 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 11:11:58,510 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,511 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,513 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,515 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 11:11:58,516 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,519 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,522 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,522 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,526 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,530 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 11:11:58,531 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 11:11:58,532 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,535 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,537 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 11:11:58,538 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,541 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,542 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,544 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,545 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,548 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,549 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,552 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,554 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,556 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 11:11:58,556 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,558 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,562 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,563 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,565 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,566 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,569 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,570 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,573 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,575 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 11:11:58,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,579 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,579 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,582 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,584 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,586 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,588 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,589 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,592 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,592 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,593 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,596 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,596 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,598 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 11:11:58,599 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,602 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,604 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,605 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,608 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 3 disjuncts [2020-12-09 11:11:58,609 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 11:11:58,610 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,613 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,615 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 11:11:58,615 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,618 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,619 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,621 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,622 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,625 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,625 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,627 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,629 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,630 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,633 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 11:11:58,633 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,635 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,635 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,638 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,640 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,642 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 11:11:58,642 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,644 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,646 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,648 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,649 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,651 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,651 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,654 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,655 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,657 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,660 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 11:11:58,660 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,663 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,670 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,670 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,673 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,674 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,677 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,679 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 11:11:58,679 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,680 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,683 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,683 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,685 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,688 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,689 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,692 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 11:11:58,692 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,694 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:11:58,697 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,698 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,700 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 11:11:58,702 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:11:58,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:11:58,707 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,708 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,710 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 11:11:58,710 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,712 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 11:11:58,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,714 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,715 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,716 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,716 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,717 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,719 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 11:11:58,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,721 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,721 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,722 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,723 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,725 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,726 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,727 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,728 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,730 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,731 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,732 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,734 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,735 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 11:11:58,736 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,736 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,738 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 11:11:58,738 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,739 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 11:11:58,739 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,741 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,744 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:11:58,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:11:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:11:58,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:11:59,131 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 2658 DAG size of output: 2498 [2020-12-09 11:11:59,152 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 11:11:59,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [52510002] [2020-12-09 11:11:59,169 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 11:11:59,169 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 11:11:59,186 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 11:11:59,191 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 11:11:59,191 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 11:11:59,323 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 45 [2020-12-09 11:11:59,988 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 45 [2020-12-09 11:12:01,063 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 2477 DAG size of output: 2336 [2020-12-09 11:12:16,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 11:12:16,980 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 11:12:16,990 INFO L168 Benchmark]: Toolchain (without parser) took 33089.10 ms. Allocated memory was 107.0 MB in the beginning and 721.4 MB in the end (delta: 614.5 MB). Free memory was 67.7 MB in the beginning and 396.5 MB in the end (delta: -328.8 MB). Peak memory consumption was 526.8 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:16,990 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 107.0 MB. Free memory was 86.3 MB in the beginning and 86.2 MB in the end (delta: 78.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:12:16,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.40 ms. Allocated memory is still 107.0 MB. Free memory was 67.5 MB in the beginning and 61.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:16,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.89 ms. Allocated memory is still 107.0 MB. Free memory was 61.6 MB in the beginning and 52.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:16,992 INFO L168 Benchmark]: Boogie Preprocessor took 85.56 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 52.0 MB in the beginning and 99.9 MB in the end (delta: -47.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:16,993 INFO L168 Benchmark]: RCFGBuilder took 12706.54 ms. Allocated memory was 130.0 MB in the beginning and 346.0 MB in the end (delta: 216.0 MB). Free memory was 99.9 MB in the beginning and 183.5 MB in the end (delta: -83.6 MB). Peak memory consumption was 264.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:16,993 INFO L168 Benchmark]: TraceAbstraction took 19826.02 ms. Allocated memory was 346.0 MB in the beginning and 721.4 MB in the end (delta: 375.4 MB). Free memory was 182.4 MB in the beginning and 396.5 MB in the end (delta: -214.1 MB). Peak memory consumption was 402.5 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:16,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 107.0 MB. Free memory was 86.3 MB in the beginning and 86.2 MB in the end (delta: 78.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.40 ms. Allocated memory is still 107.0 MB. Free memory was 67.5 MB in the beginning and 61.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.89 ms. Allocated memory is still 107.0 MB. Free memory was 61.6 MB in the beginning and 52.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.56 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 52.0 MB in the beginning and 99.9 MB in the end (delta: -47.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12706.54 ms. Allocated memory was 130.0 MB in the beginning and 346.0 MB in the end (delta: 216.0 MB). Free memory was 99.9 MB in the beginning and 183.5 MB in the end (delta: -83.6 MB). Peak memory consumption was 264.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19826.02 ms. Allocated memory was 346.0 MB in the beginning and 721.4 MB in the end (delta: 375.4 MB). Free memory was 182.4 MB in the beginning and 396.5 MB in the end (delta: -214.1 MB). Peak memory consumption was 402.5 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 11:12:18,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:12:18,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:12:18,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:12:18,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:12:18,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:12:18,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:12:18,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:12:18,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:12:18,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:12:18,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:12:18,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:12:18,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:12:18,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:12:18,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:12:18,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:12:18,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:12:18,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:12:18,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:12:18,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:12:18,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:12:18,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:12:18,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:12:18,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:12:18,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:12:18,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:12:18,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:12:18,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:12:18,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:12:18,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:12:18,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:12:18,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:12:18,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:12:18,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:12:18,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:12:18,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:12:18,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:12:18,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:12:18,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:12:18,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:12:18,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:12:18,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 11:12:18,613 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:12:18,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:12:18,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:12:18,614 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:12:18,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:12:18,614 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:12:18,614 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:12:18,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:12:18,614 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:12:18,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:12:18,615 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:12:18,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:12:18,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:12:18,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:12:18,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:12:18,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:12:18,617 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 11:12:18,617 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 11:12:18,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:12:18,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:12:18,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:12:18,617 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_a463bfc7-9ab9-4215-b066-2b1004bd636f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f36b3574a222deadefa083717d319eba8aaf260 [2020-12-09 11:12:18,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:12:18,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:12:18,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:12:18,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:12:18,869 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:12:18,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label38.c [2020-12-09 11:12:18,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/65f0cb823/e74cd577f81c4019bdd2d469833ced7b/FLAG6f4042374 [2020-12-09 11:12:19,336 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:12:19,337 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/sv-benchmarks/c/eca-rers2012/Problem14_label38.c [2020-12-09 11:12:19,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/65f0cb823/e74cd577f81c4019bdd2d469833ced7b/FLAG6f4042374 [2020-12-09 11:12:19,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/data/65f0cb823/e74cd577f81c4019bdd2d469833ced7b [2020-12-09 11:12:19,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:12:19,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:12:19,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:19,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:12:19,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:12:19,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304ab8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19, skipping insertion in model container [2020-12-09 11:12:19,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:12:19,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:12:19,585 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_a463bfc7-9ab9-4215-b066-2b1004bd636f/sv-benchmarks/c/eca-rers2012/Problem14_label38.c[5189,5202] [2020-12-09 11:12:19,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:19,722 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:12:19,742 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_a463bfc7-9ab9-4215-b066-2b1004bd636f/sv-benchmarks/c/eca-rers2012/Problem14_label38.c[5189,5202] [2020-12-09 11:12:19,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:19,854 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:12:19,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19 WrapperNode [2020-12-09 11:12:19,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:19,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:19,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:12:19,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:12:19,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:19,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:12:19,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:12:19,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:12:19,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... [2020-12-09 11:12:19,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:12:19,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:12:19,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:12:19,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:12:19,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 11:12:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:12:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:12:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:12:22,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:12:22,424 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 11:12:22,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:22 BoogieIcfgContainer [2020-12-09 11:12:22,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:12:22,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:12:22,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:12:22,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:12:22,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:12:19" (1/3) ... [2020-12-09 11:12:22,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce498af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:22, skipping insertion in model container [2020-12-09 11:12:22,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:19" (2/3) ... [2020-12-09 11:12:22,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce498af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:22, skipping insertion in model container [2020-12-09 11:12:22,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:22" (3/3) ... [2020-12-09 11:12:22,430 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-12-09 11:12:22,439 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:12:22,442 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 11:12:22,449 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 11:12:22,467 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:12:22,467 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:12:22,467 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:12:22,467 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:12:22,467 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:12:22,467 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:12:22,467 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:12:22,468 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:12:22,480 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-09 11:12:22,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-09 11:12:22,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:22,485 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, 1] [2020-12-09 11:12:22,485 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:22,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:22,489 INFO L82 PathProgramCache]: Analyzing trace with hash 761214138, now seen corresponding path program 1 times [2020-12-09 11:12:22,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:22,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015102717] [2020-12-09 11:12:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:22,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 11:12:22,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:22,651 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 11:12:22,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:12:22,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015102717] [2020-12-09 11:12:22,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:12:22,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:12:22,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409563584] [2020-12-09 11:12:22,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:12:22,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:22,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:12:22,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 11:12:22,667 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-09 11:12:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:25,789 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-09 11:12:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:12:25,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-09 11:12:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:25,805 INFO L225 Difference]: With dead ends: 669 [2020-12-09 11:12:25,805 INFO L226 Difference]: Without dead ends: 360 [2020-12-09 11:12:25,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 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 11:12:25,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-09 11:12:25,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-09 11:12:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-09 11:12:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 522 transitions. [2020-12-09 11:12:25,851 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 522 transitions. Word has length 50 [2020-12-09 11:12:25,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:25,852 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 522 transitions. [2020-12-09 11:12:25,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:12:25,852 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 522 transitions. [2020-12-09 11:12:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-09 11:12:25,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:25,856 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, 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] [2020-12-09 11:12:26,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 11:12:26,058 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:26,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1385871511, now seen corresponding path program 1 times [2020-12-09 11:12:26,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:26,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053534088] [2020-12-09 11:12:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:26,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 11:12:26,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:26,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:12:26,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053534088] [2020-12-09 11:12:26,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:12:26,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:12:26,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94268694] [2020-12-09 11:12:26,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:12:26,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:26,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:12:26,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 11:12:26,236 INFO L87 Difference]: Start difference. First operand 360 states and 522 transitions. Second operand 3 states. [2020-12-09 11:12:29,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:29,265 INFO L93 Difference]: Finished difference Result 1074 states and 1561 transitions. [2020-12-09 11:12:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:12:29,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-09 11:12:29,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:29,269 INFO L225 Difference]: With dead ends: 1074 [2020-12-09 11:12:29,269 INFO L226 Difference]: Without dead ends: 716 [2020-12-09 11:12:29,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 11:12:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-09 11:12:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-09 11:12:29,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-09 11:12:29,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 962 transitions. [2020-12-09 11:12:29,295 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 962 transitions. Word has length 116 [2020-12-09 11:12:29,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:29,295 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 962 transitions. [2020-12-09 11:12:29,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:12:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 962 transitions. [2020-12-09 11:12:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-09 11:12:29,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:29,297 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, 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] [2020-12-09 11:12:29,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 11:12:29,499 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:29,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:29,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1084575164, now seen corresponding path program 1 times [2020-12-09 11:12:29,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:29,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41831899] [2020-12-09 11:12:29,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:29,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 11:12:29,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:29,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:12:29,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41831899] [2020-12-09 11:12:29,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:12:29,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:12:29,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673895807] [2020-12-09 11:12:29,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:12:29,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:29,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:12:29,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 11:12:29,708 INFO L87 Difference]: Start difference. First operand 716 states and 962 transitions. Second operand 3 states. [2020-12-09 11:12:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:32,501 INFO L93 Difference]: Finished difference Result 1964 states and 2655 transitions. [2020-12-09 11:12:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:12:32,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-12-09 11:12:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:32,508 INFO L225 Difference]: With dead ends: 1964 [2020-12-09 11:12:32,508 INFO L226 Difference]: Without dead ends: 1250 [2020-12-09 11:12:32,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 11:12:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-09 11:12:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-12-09 11:12:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-09 11:12:32,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1556 transitions. [2020-12-09 11:12:32,534 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1556 transitions. Word has length 118 [2020-12-09 11:12:32,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:32,535 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1556 transitions. [2020-12-09 11:12:32,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:12:32,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1556 transitions. [2020-12-09 11:12:32,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-09 11:12:32,540 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:32,540 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, 3, 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 11:12:32,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 11:12:32,741 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:32,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:32,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1223458982, now seen corresponding path program 1 times [2020-12-09 11:12:32,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:32,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325457290] [2020-12-09 11:12:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:32,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 11:12:32,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:33,075 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-09 11:12:33,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:12:33,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325457290] [2020-12-09 11:12:33,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:12:33,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 11:12:33,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523656957] [2020-12-09 11:12:33,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 11:12:33,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:33,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 11:12:33,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 11:12:33,077 INFO L87 Difference]: Start difference. First operand 1250 states and 1556 transitions. Second operand 4 states. [2020-12-09 11:12:35,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:35,420 INFO L93 Difference]: Finished difference Result 2171 states and 2741 transitions. [2020-12-09 11:12:35,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 11:12:35,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2020-12-09 11:12:35,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:35,425 INFO L225 Difference]: With dead ends: 2171 [2020-12-09 11:12:35,425 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 11:12:35,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 196 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 11:12:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 11:12:35,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 11:12:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 11:12:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1327 transitions. [2020-12-09 11:12:35,442 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1327 transitions. Word has length 199 [2020-12-09 11:12:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:35,442 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1327 transitions. [2020-12-09 11:12:35,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 11:12:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1327 transitions. [2020-12-09 11:12:35,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-12-09 11:12:35,448 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:35,448 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, 3, 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 11:12:35,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 11:12:35,649 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:35,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:35,649 INFO L82 PathProgramCache]: Analyzing trace with hash 662481307, now seen corresponding path program 1 times [2020-12-09 11:12:35,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:35,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794514092] [2020-12-09 11:12:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:35,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 11:12:35,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:36,017 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-09 11:12:36,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:12:36,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794514092] [2020-12-09 11:12:36,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:12:36,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:12:36,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170299348] [2020-12-09 11:12:36,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:12:36,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:36,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:12:36,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 11:12:36,019 INFO L87 Difference]: Start difference. First operand 1072 states and 1327 transitions. Second operand 3 states. [2020-12-09 11:12:38,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:38,018 INFO L93 Difference]: Finished difference Result 1786 states and 2287 transitions. [2020-12-09 11:12:38,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:12:38,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-12-09 11:12:38,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:38,023 INFO L225 Difference]: With dead ends: 1786 [2020-12-09 11:12:38,023 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 11:12:38,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 223 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 11:12:38,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 11:12:38,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 11:12:38,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 11:12:38,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1321 transitions. [2020-12-09 11:12:38,040 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1321 transitions. Word has length 225 [2020-12-09 11:12:38,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:38,040 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1321 transitions. [2020-12-09 11:12:38,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:12:38,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1321 transitions. [2020-12-09 11:12:38,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-12-09 11:12:38,046 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:38,046 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, 4, 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 11:12:38,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 11:12:38,246 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:38,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1707405387, now seen corresponding path program 1 times [2020-12-09 11:12:38,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:38,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800856792] [2020-12-09 11:12:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:38,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 11:12:38,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 143 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 11:12:38,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 11:12:39,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800856792] [2020-12-09 11:12:39,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 11:12:39,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 11:12:39,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018275360] [2020-12-09 11:12:39,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:12:39,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:39,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:12:39,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 11:12:39,402 INFO L87 Difference]: Start difference. First operand 1072 states and 1321 transitions. Second operand 3 states. [2020-12-09 11:12:45,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:45,895 INFO L93 Difference]: Finished difference Result 2142 states and 2812 transitions. [2020-12-09 11:12:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:12:45,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2020-12-09 11:12:45,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:45,901 INFO L225 Difference]: With dead ends: 2142 [2020-12-09 11:12:45,901 INFO L226 Difference]: Without dead ends: 1428 [2020-12-09 11:12:45,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 652 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 11:12:45,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-12-09 11:12:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-12-09 11:12:45,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-09 11:12:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1767 transitions. [2020-12-09 11:12:45,927 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1767 transitions. Word has length 329 [2020-12-09 11:12:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:45,928 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1767 transitions. [2020-12-09 11:12:45,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:12:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1767 transitions. [2020-12-09 11:12:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-12-09 11:12:45,938 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:45,939 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, 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, 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 11:12:46,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 11:12:46,140 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:46,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:46,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1098397336, now seen corresponding path program 1 times [2020-12-09 11:12:46,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:46,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888467059] [2020-12-09 11:12:46,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:46,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 11:12:46,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 420 proven. 159 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-12-09 11:12:46,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 579 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-12-09 11:12:47,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888467059] [2020-12-09 11:12:47,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 11:12:47,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 11:12:47,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614650529] [2020-12-09 11:12:47,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:12:47,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:47,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:12:47,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 11:12:47,541 INFO L87 Difference]: Start difference. First operand 1428 states and 1767 transitions. Second operand 3 states. [2020-12-09 11:12:53,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:53,764 INFO L93 Difference]: Finished difference Result 3210 states and 4150 transitions. [2020-12-09 11:12:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:12:53,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 440 [2020-12-09 11:12:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:53,772 INFO L225 Difference]: With dead ends: 3210 [2020-12-09 11:12:53,772 INFO L226 Difference]: Without dead ends: 2140 [2020-12-09 11:12:53,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 874 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 11:12:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-09 11:12:53,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-09 11:12:53,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-09 11:12:53,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2666 transitions. [2020-12-09 11:12:53,801 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2666 transitions. Word has length 440 [2020-12-09 11:12:53,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:53,802 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2666 transitions. [2020-12-09 11:12:53,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:12:53,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2666 transitions. [2020-12-09 11:12:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2020-12-09 11:12:53,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:53,805 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, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:12:54,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 11:12:54,006 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:54,008 INFO L82 PathProgramCache]: Analyzing trace with hash 762806672, now seen corresponding path program 1 times [2020-12-09 11:12:54,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:54,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841374985] [2020-12-09 11:12:54,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:54,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 11:12:54,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 379 proven. 277 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-09 11:12:54,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 627 proven. 29 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-09 11:12:56,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841374985] [2020-12-09 11:12:56,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1049345922] [2020-12-09 11:12:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:56,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 11:12:56,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:57,267 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:12:57,268 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:12:57,268 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:12:57,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:12:57,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:12:57,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:12:57,279 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:12:57,282 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:12:57,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:12:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 436 proven. 48 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 11:12:57,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:57,744 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 11:12:57,745 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 11:12:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 460 proven. 24 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 11:12:58,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084874478] [2020-12-09 11:12:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:12:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:58,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:12:58,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 340 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 11:12:58,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 340 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 11:12:59,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 11:12:59,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 7, 7, 4, 4] total 18 [2020-12-09 11:12:59,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543380650] [2020-12-09 11:12:59,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 11:12:59,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:59,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 11:12:59,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2020-12-09 11:12:59,175 INFO L87 Difference]: Start difference. First operand 2140 states and 2666 transitions. Second operand 18 states. [2020-12-09 11:13:00,588 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 11:13:02,122 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 11:13:13,423 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 11:13:13,995 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 11:13:32,280 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 11:13:35,957 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-09 11:13:37,060 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 17 [2020-12-09 11:14:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:14:02,696 INFO L93 Difference]: Finished difference Result 5963 states and 7554 transitions. [2020-12-09 11:14:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-09 11:14:02,699 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 456 [2020-12-09 11:14:02,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:14:02,713 INFO L225 Difference]: With dead ends: 5963 [2020-12-09 11:14:02,714 INFO L226 Difference]: Without dead ends: 3922 [2020-12-09 11:14:02,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2747 GetRequests, 2717 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2020-12-09 11:14:02,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2020-12-09 11:14:02,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 3564. [2020-12-09 11:14:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-09 11:14:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3861 transitions. [2020-12-09 11:14:02,768 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3861 transitions. Word has length 456 [2020-12-09 11:14:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:14:02,768 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3861 transitions. [2020-12-09 11:14:02,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 11:14:02,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3861 transitions. [2020-12-09 11:14:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2020-12-09 11:14:02,772 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:14:02,772 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, 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, 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 11:14:03,374 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 11:14:03,376 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:14:03,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:14:03,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2081512993, now seen corresponding path program 1 times [2020-12-09 11:14:03,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:14:03,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867968286] [2020-12-09 11:14:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:14:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:14:03,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:14:03,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:14:04,941 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 11:14:04,942 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 11:14:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 0 proven. 1137 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 11:14:06,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:14:07,550 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 11:14:07,550 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:14:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 725 proven. 412 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 11:14:10,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867968286] [2020-12-09 11:14:10,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1698609742] [2020-12-09 11:14:10,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:14:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:14:10,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 11:14:10,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:14:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-12-09 11:14:11,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:14:11,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 11:14:11,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 11] total 22 [2020-12-09 11:14:11,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358098020] [2020-12-09 11:14:11,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 11:14:11,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:14:11,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 11:14:11,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-12-09 11:14:11,320 INFO L87 Difference]: Start difference. First operand 3564 states and 3861 transitions. Second operand 4 states. [2020-12-09 11:14:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:14:15,540 INFO L93 Difference]: Finished difference Result 8016 states and 8922 transitions. [2020-12-09 11:14:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 11:14:15,540 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 704 [2020-12-09 11:14:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:14:15,557 INFO L225 Difference]: With dead ends: 8016 [2020-12-09 11:14:15,557 INFO L226 Difference]: Without dead ends: 5166 [2020-12-09 11:14:15,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2111 GetRequests, 2070 SyntacticMatches, 20 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-12-09 11:14:15,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2020-12-09 11:14:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2020-12-09 11:14:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5166 states. [2020-12-09 11:14:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5654 transitions. [2020-12-09 11:14:15,621 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5654 transitions. Word has length 704 [2020-12-09 11:14:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:14:15,622 INFO L481 AbstractCegarLoop]: Abstraction has 5166 states and 5654 transitions. [2020-12-09 11:14:15,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 11:14:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5654 transitions. [2020-12-09 11:14:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-12-09 11:14:15,627 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:14:15,628 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, 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, 6, 6, 6, 6, 6, 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 11:14:16,029 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 11:14:16,030 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:14:16,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:14:16,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1710126857, now seen corresponding path program 1 times [2020-12-09 11:14:16,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:14:16,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475156440] [2020-12-09 11:14:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:14:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:14:16,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:14:16,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:14:19,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 678 proven. 898 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2020-12-09 11:14:19,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:14:20,046 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 11:14:20,046 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:14:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 1308 proven. 268 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2020-12-09 11:14:23,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475156440] [2020-12-09 11:14:23,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2086510753] [2020-12-09 11:14:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/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 11:14:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:14:23,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 11:14:23,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:14:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2020-12-09 11:14:24,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:14:24,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 11:14:24,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 21 [2020-12-09 11:14:24,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902294871] [2020-12-09 11:14:24,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 11:14:24,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:14:24,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 11:14:24,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-12-09 11:14:24,258 INFO L87 Difference]: Start difference. First operand 5166 states and 5654 transitions. Second operand 4 states. [2020-12-09 11:14:28,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:14:28,312 INFO L93 Difference]: Finished difference Result 11268 states and 12397 transitions. [2020-12-09 11:14:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 11:14:28,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 792 [2020-12-09 11:14:28,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:14:28,334 INFO L225 Difference]: With dead ends: 11268 [2020-12-09 11:14:28,334 INFO L226 Difference]: Without dead ends: 6638 [2020-12-09 11:14:28,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2375 GetRequests, 2338 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-12-09 11:14:28,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2020-12-09 11:14:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6412. [2020-12-09 11:14:28,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6412 states. [2020-12-09 11:14:28,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6891 transitions. [2020-12-09 11:14:28,405 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6891 transitions. Word has length 792 [2020-12-09 11:14:28,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:14:28,406 INFO L481 AbstractCegarLoop]: Abstraction has 6412 states and 6891 transitions. [2020-12-09 11:14:28,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 11:14:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6891 transitions. [2020-12-09 11:14:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1004 [2020-12-09 11:14:28,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:14:28,417 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-09 11:14:28,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2020-12-09 11:14:28,819 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:14:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:14:28,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1682650518, now seen corresponding path program 1 times [2020-12-09 11:14:28,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:14:28,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414786698] [2020-12-09 11:14:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-12-09 11:14:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:14:29,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:14:29,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:14:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2800 backedges. 1459 proven. 898 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2020-12-09 11:14:32,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:14:33,900 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 11:14:33,900 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:14:37,092 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 11:14:40,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2800 backedges. 2089 proven. 268 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2020-12-09 11:14:40,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414786698] [2020-12-09 11:14:40,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [852720316] [2020-12-09 11:14:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt [2020-12-09 11:14:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:14:40,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 11:14:40,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:14:41,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:14:41,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:14:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2800 backedges. 1064 proven. 48 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2020-12-09 11:14:42,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:14:42,539 INFO L639 QuantifierPusher]: Distributing 4 disjuncts over 3 conjuncts [2020-12-09 11:14:42,540 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 11:14:42,541 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 11:14:42,542 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-12-09 11:14:42,542 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 11:14:42,544 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-12-09 11:14:42,546 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-12-09 11:14:42,546 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 11:14:42,547 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-12-09 11:14:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2800 backedges. 1102 proven. 10 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2020-12-09 11:14:43,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783713652] [2020-12-09 11:14:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 11:14:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:14:43,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:14:43,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:14:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2800 backedges. 394 proven. 718 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2020-12-09 11:14:45,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:14:46,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2800 backedges. 394 proven. 718 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2020-12-09 11:14:46,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 11:14:46,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 7, 7, 4, 4] total 31 [2020-12-09 11:14:46,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865381459] [2020-12-09 11:14:46,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-12-09 11:14:46,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:14:46,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-12-09 11:14:46,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2020-12-09 11:14:46,545 INFO L87 Difference]: Start difference. First operand 6412 states and 6891 transitions. Second operand 31 states. [2020-12-09 11:15:01,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:15:01,156 INFO L93 Difference]: Finished difference Result 12386 states and 13336 transitions. [2020-12-09 11:15:01,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-09 11:15:01,156 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 1003 [2020-12-09 11:15:01,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:15:01,177 INFO L225 Difference]: With dead ends: 12386 [2020-12-09 11:15:01,177 INFO L226 Difference]: Without dead ends: 6750 [2020-12-09 11:15:01,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6023 GetRequests, 5976 SyntacticMatches, 12 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=284, Invalid=1048, Unknown=0, NotChecked=0, Total=1332 [2020-12-09 11:15:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6750 states. [2020-12-09 11:15:01,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6750 to 6047. [2020-12-09 11:15:01,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6047 states. [2020-12-09 11:15:01,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6047 states to 6047 states and 6483 transitions. [2020-12-09 11:15:01,238 INFO L78 Accepts]: Start accepts. Automaton has 6047 states and 6483 transitions. Word has length 1003 [2020-12-09 11:15:01,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:15:01,238 INFO L481 AbstractCegarLoop]: Abstraction has 6047 states and 6483 transitions. [2020-12-09 11:15:01,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-12-09 11:15:01,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6047 states and 6483 transitions. [2020-12-09 11:15:01,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2020-12-09 11:15:01,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:15:01,249 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:15:01,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 cvc4 --incremental --print-success --lang smt [2020-12-09 11:15:01,852 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:15:01,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:15:01,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1161626891, now seen corresponding path program 1 times [2020-12-09 11:15:01,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:15:01,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280274149] [2020-12-09 11:15:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-12-09 11:15:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:15:02,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:15:02,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:15:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3892 backedges. 2180 proven. 1115 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2020-12-09 11:15:06,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:15:07,070 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 11:15:07,070 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:15:07,757 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 11:15:08,274 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 11:15:18,263 WARN L197 SmtUtils]: Spent 2.58 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:15:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3892 backedges. 2722 proven. 0 refuted. 573 times theorem prover too weak. 597 trivial. 0 not checked. [2020-12-09 11:15:22,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280274149] [2020-12-09 11:15:22,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [667191527] [2020-12-09 11:15:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt [2020-12-09 11:15:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:15:23,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 11:15:23,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:15:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3892 backedges. 1808 proven. 0 refuted. 0 times theorem prover too weak. 2084 trivial. 0 not checked. [2020-12-09 11:15:24,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:15:24,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 11:15:24,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 11] total 26 [2020-12-09 11:15:24,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226027937] [2020-12-09 11:15:24,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 11:15:24,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:15:24,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 11:15:24,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=472, Unknown=2, NotChecked=0, Total=650 [2020-12-09 11:15:24,515 INFO L87 Difference]: Start difference. First operand 6047 states and 6483 transitions. Second operand 6 states. [2020-12-09 11:15:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:15:26,007 INFO L93 Difference]: Finished difference Result 11568 states and 12354 transitions. [2020-12-09 11:15:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 11:15:26,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1134 [2020-12-09 11:15:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:15:26,016 INFO L225 Difference]: With dead ends: 11568 [2020-12-09 11:15:26,016 INFO L226 Difference]: Without dead ends: 5691 [2020-12-09 11:15:26,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3399 GetRequests, 3350 SyntacticMatches, 25 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=176, Invalid=472, Unknown=2, NotChecked=0, Total=650 [2020-12-09 11:15:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2020-12-09 11:15:26,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5691. [2020-12-09 11:15:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5691 states. [2020-12-09 11:15:26,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5691 states to 5691 states and 6022 transitions. [2020-12-09 11:15:26,066 INFO L78 Accepts]: Start accepts. Automaton has 5691 states and 6022 transitions. Word has length 1134 [2020-12-09 11:15:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:15:26,066 INFO L481 AbstractCegarLoop]: Abstraction has 5691 states and 6022 transitions. [2020-12-09 11:15:26,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 11:15:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5691 states and 6022 transitions. [2020-12-09 11:15:26,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1150 [2020-12-09 11:15:26,076 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:15:26,077 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:15:26,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3,20 cvc4 --incremental --print-success --lang smt [2020-12-09 11:15:26,479 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:15:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:15:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash -769519708, now seen corresponding path program 1 times [2020-12-09 11:15:26,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:15:26,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603703006] [2020-12-09 11:15:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-12-09 11:15:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:15:26,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:15:26,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:15:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3982 backedges. 2255 proven. 1115 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-12-09 11:15:30,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:15:31,488 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-09 11:15:31,657 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 11:15:31,657 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:15:32,374 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 11:15:32,932 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 11:15:43,506 WARN L197 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:15:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3982 backedges. 2797 proven. 0 refuted. 573 times theorem prover too weak. 612 trivial. 0 not checked. [2020-12-09 11:15:48,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603703006] [2020-12-09 11:15:48,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1964037181] [2020-12-09 11:15:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt [2020-12-09 11:15:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:15:48,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 11:15:48,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:15:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3982 backedges. 1834 proven. 0 refuted. 0 times theorem prover too weak. 2148 trivial. 0 not checked. [2020-12-09 11:15:49,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:15:49,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 11:15:49,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 11] total 26 [2020-12-09 11:15:49,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476961484] [2020-12-09 11:15:49,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 11:15:49,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:15:49,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 11:15:49,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=472, Unknown=2, NotChecked=0, Total=650 [2020-12-09 11:15:49,971 INFO L87 Difference]: Start difference. First operand 5691 states and 6022 transitions. Second operand 6 states. [2020-12-09 11:15:51,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:15:51,922 INFO L93 Difference]: Finished difference Result 11252 states and 11911 transitions. [2020-12-09 11:15:51,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 11:15:51,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1149 [2020-12-09 11:15:51,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:15:51,928 INFO L225 Difference]: With dead ends: 11252 [2020-12-09 11:15:51,928 INFO L226 Difference]: Without dead ends: 5691 [2020-12-09 11:15:51,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3444 GetRequests, 3393 SyntacticMatches, 27 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=176, Invalid=472, Unknown=2, NotChecked=0, Total=650 [2020-12-09 11:15:51,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2020-12-09 11:15:51,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5691. [2020-12-09 11:15:51,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5691 states. [2020-12-09 11:15:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5691 states to 5691 states and 5998 transitions. [2020-12-09 11:15:51,978 INFO L78 Accepts]: Start accepts. Automaton has 5691 states and 5998 transitions. Word has length 1149 [2020-12-09 11:15:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:15:51,978 INFO L481 AbstractCegarLoop]: Abstraction has 5691 states and 5998 transitions. [2020-12-09 11:15:51,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 11:15:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5691 states and 5998 transitions. [2020-12-09 11:15:51,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2020-12-09 11:15:51,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:15:51,989 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:15:52,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3,22 cvc4 --incremental --print-success --lang smt [2020-12-09 11:15:52,391 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:15:52,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:15:52,392 INFO L82 PathProgramCache]: Analyzing trace with hash -127204005, now seen corresponding path program 1 times [2020-12-09 11:15:52,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:15:52,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270264342] [2020-12-09 11:15:52,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2020-12-09 11:15:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:15:52,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:15:52,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:15:56,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4066 backedges. 2322 proven. 1115 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2020-12-09 11:15:56,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:15:57,398 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 11:15:57,398 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:15:58,177 WARN L197 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 11:16:09,225 WARN L197 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:16:13,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4066 backedges. 2864 proven. 0 refuted. 573 times theorem prover too weak. 629 trivial. 0 not checked. [2020-12-09 11:16:13,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270264342] [2020-12-09 11:16:13,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1814775540] [2020-12-09 11:16:13,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt [2020-12-09 11:16:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:16:14,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 11:16:14,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:16:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4066 backedges. 2422 proven. 79 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2020-12-09 11:16:16,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:16:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4066 backedges. 1873 proven. 0 refuted. 0 times theorem prover too weak. 2193 trivial. 0 not checked. [2020-12-09 11:16:18,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 11:16:18,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11, 11, 6] total 27 [2020-12-09 11:16:18,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329016245] [2020-12-09 11:16:18,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 11:16:18,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:16:18,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 11:16:18,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=485, Unknown=2, NotChecked=0, Total=702 [2020-12-09 11:16:18,280 INFO L87 Difference]: Start difference. First operand 5691 states and 5998 transitions. Second operand 3 states. [2020-12-09 11:16:20,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:16:20,255 INFO L93 Difference]: Finished difference Result 12092 states and 12787 transitions. [2020-12-09 11:16:20,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 11:16:20,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1166 [2020-12-09 11:16:20,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:16:20,262 INFO L225 Difference]: With dead ends: 12092 [2020-12-09 11:16:20,263 INFO L226 Difference]: Without dead ends: 6759 [2020-12-09 11:16:20,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4660 GetRequests, 4614 SyntacticMatches, 21 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=215, Invalid=485, Unknown=2, NotChecked=0, Total=702 [2020-12-09 11:16:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6759 states. [2020-12-09 11:16:20,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6759 to 6759. [2020-12-09 11:16:20,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6759 states. [2020-12-09 11:16:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6759 states to 6759 states and 7081 transitions. [2020-12-09 11:16:20,325 INFO L78 Accepts]: Start accepts. Automaton has 6759 states and 7081 transitions. Word has length 1166 [2020-12-09 11:16:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:16:20,325 INFO L481 AbstractCegarLoop]: Abstraction has 6759 states and 7081 transitions. [2020-12-09 11:16:20,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 11:16:20,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6759 states and 7081 transitions. [2020-12-09 11:16:20,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2020-12-09 11:16:20,336 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:16:20,337 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:16:20,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3,24 cvc4 --incremental --print-success --lang smt [2020-12-09 11:16:20,739 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:16:20,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:16:20,741 INFO L82 PathProgramCache]: Analyzing trace with hash -728156539, now seen corresponding path program 1 times [2020-12-09 11:16:20,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:16:20,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033135403] [2020-12-09 11:16:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2020-12-09 11:16:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:16:21,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:16:21,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:16:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4093 backedges. 2340 proven. 1115 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2020-12-09 11:16:25,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:16:25,910 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 11:16:25,910 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:16:26,721 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 11:16:27,303 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 11:16:37,907 WARN L197 SmtUtils]: Spent 2.59 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:16:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4093 backedges. 2882 proven. 0 refuted. 573 times theorem prover too weak. 638 trivial. 0 not checked. [2020-12-09 11:16:42,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033135403] [2020-12-09 11:16:42,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1556327527] [2020-12-09 11:16:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt [2020-12-09 11:16:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:16:43,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 11:16:43,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:16:43,696 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:16:43,697 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:16:43,697 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:16:43,699 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 11:16:43,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 11:16:43,704 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:16:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4093 backedges. 1332 proven. 48 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2020-12-09 11:16:44,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:16:45,594 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-12-09 11:16:45,595 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 11:16:45,596 INFO L639 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-12-09 11:16:45,598 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-12-09 11:16:45,598 INFO L639 QuantifierPusher]: Distributing 4 disjuncts over 3 conjuncts [2020-12-09 11:16:45,601 INFO L639 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-12-09 11:16:46,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4093 backedges. 1372 proven. 8 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2020-12-09 11:16:46,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725931833] [2020-12-09 11:16:46,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 11:16:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:16:47,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:16:47,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:16:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4093 backedges. 1380 proven. 0 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2020-12-09 11:16:48,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:16:48,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 11:16:48,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 11, 7, 7] total 32 [2020-12-09 11:16:48,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518306896] [2020-12-09 11:16:48,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 11:16:48,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:16:48,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 11:16:48,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=774, Unknown=2, NotChecked=0, Total=992 [2020-12-09 11:16:48,571 INFO L87 Difference]: Start difference. First operand 6759 states and 7081 transitions. Second operand 4 states. [2020-12-09 11:16:52,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:16:52,438 INFO L93 Difference]: Finished difference Result 13346 states and 13999 transitions. [2020-12-09 11:16:52,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 11:16:52,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1175 [2020-12-09 11:16:52,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:16:52,448 INFO L225 Difference]: With dead ends: 13346 [2020-12-09 11:16:52,448 INFO L226 Difference]: Without dead ends: 6759 [2020-12-09 11:16:52,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5872 GetRequests, 5810 SyntacticMatches, 31 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=223, Invalid=831, Unknown=2, NotChecked=0, Total=1056 [2020-12-09 11:16:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6759 states. [2020-12-09 11:16:52,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6759 to 6759. [2020-12-09 11:16:52,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6759 states. [2020-12-09 11:16:52,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6759 states to 6759 states and 7078 transitions. [2020-12-09 11:16:52,512 INFO L78 Accepts]: Start accepts. Automaton has 6759 states and 7078 transitions. Word has length 1175 [2020-12-09 11:16:52,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:16:52,513 INFO L481 AbstractCegarLoop]: Abstraction has 6759 states and 7078 transitions. [2020-12-09 11:16:52,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 11:16:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 6759 states and 7078 transitions. [2020-12-09 11:16:52,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1258 [2020-12-09 11:16:52,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:16:52,526 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 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, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:16:53,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 mathsat -unsat_core_generation=3 [2020-12-09 11:16:53,129 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:16:53,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:16:53,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1727984260, now seen corresponding path program 1 times [2020-12-09 11:16:53,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:16:53,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347160279] [2020-12-09 11:16:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 28 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with mathsat -unsat_core_generation=3 [2020-12-09 11:16:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:16:53,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 11:16:53,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:16:57,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4872 backedges. 2830 proven. 1115 refuted. 0 times theorem prover too weak. 927 trivial. 0 not checked. [2020-12-09 11:16:57,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:16:58,732 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 11:16:58,732 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 11:16:59,543 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 11:17:00,113 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 11:17:10,173 WARN L197 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:17:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4872 backedges. 3372 proven. 0 refuted. 573 times theorem prover too weak. 927 trivial. 0 not checked. [2020-12-09 11:17:15,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347160279] [2020-12-09 11:17:15,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [678755069] [2020-12-09 11:17:15,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt [2020-12-09 11:17:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:17:15,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:17:15,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:17:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4872 backedges. 2621 proven. 237 refuted. 0 times theorem prover too weak. 2014 trivial. 0 not checked. [2020-12-09 11:17:18,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:17:19,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4872 backedges. 2621 proven. 237 refuted. 0 times theorem prover too weak. 2014 trivial. 0 not checked. [2020-12-09 11:17:19,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078027402] [2020-12-09 11:17:19,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 11:17:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:17:20,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:17:20,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:17:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4872 backedges. 3110 proven. 61 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2020-12-09 11:17:22,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:17:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4872 backedges. 3110 proven. 61 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2020-12-09 11:17:24,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 11:17:24,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 6, 6, 5, 5] total 30 [2020-12-09 11:17:24,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481861966] [2020-12-09 11:17:24,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-09 11:17:24,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:17:24,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-09 11:17:24,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=622, Unknown=2, NotChecked=0, Total=870 [2020-12-09 11:17:24,767 INFO L87 Difference]: Start difference. First operand 6759 states and 7078 transitions. Second operand 30 states. [2020-12-09 11:17:33,346 WARN L197 SmtUtils]: Spent 2.70 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 11:17:39,200 WARN L197 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 11:17:52,119 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 11:18:10,366 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-12-09 11:20:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:20:10,227 INFO L93 Difference]: Finished difference Result 14279 states and 14934 transitions. [2020-12-09 11:20:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-09 11:20:10,228 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 1257 [2020-12-09 11:20:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:20:10,235 INFO L225 Difference]: With dead ends: 14279 [2020-12-09 11:20:10,235 INFO L226 Difference]: Without dead ends: 7738 [2020-12-09 11:20:10,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7562 GetRequests, 7495 SyntacticMatches, 24 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=455, Invalid=1520, Unknown=5, NotChecked=0, Total=1980 [2020-12-09 11:20:10,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7738 states. [2020-12-09 11:20:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7738 to 6475. [2020-12-09 11:20:10,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6475 states. [2020-12-09 11:20:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6475 states to 6475 states and 6660 transitions. [2020-12-09 11:20:10,303 INFO L78 Accepts]: Start accepts. Automaton has 6475 states and 6660 transitions. Word has length 1257 [2020-12-09 11:20:10,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:20:10,303 INFO L481 AbstractCegarLoop]: Abstraction has 6475 states and 6660 transitions. [2020-12-09 11:20:10,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-09 11:20:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6475 states and 6660 transitions. [2020-12-09 11:20:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1355 [2020-12-09 11:20:10,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:20:10,317 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:20:10,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 cvc4 --incremental --print-success --lang smt,28 mathsat -unsat_core_generation=3 [2020-12-09 11:20:10,920 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:20:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:20:10,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1834750579, now seen corresponding path program 1 times [2020-12-09 11:20:10,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:20:10,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952896786] [2020-12-09 11:20:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 31 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with mathsat -unsat_core_generation=3 [2020-12-09 11:20:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:20:11,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 11:20:11,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:20:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4978 backedges. 3196 proven. 0 refuted. 0 times theorem prover too weak. 1782 trivial. 0 not checked. [2020-12-09 11:20:13,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:20:13,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952896786] [2020-12-09 11:20:13,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:20:13,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 11:20:13,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36216494] [2020-12-09 11:20:13,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 11:20:13,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:20:13,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 11:20:13,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 11:20:13,109 INFO L87 Difference]: Start difference. First operand 6475 states and 6660 transitions. Second operand 4 states. [2020-12-09 11:20:15,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:20:15,362 INFO L93 Difference]: Finished difference Result 13304 states and 13687 transitions. [2020-12-09 11:20:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 11:20:15,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1354 [2020-12-09 11:20:15,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:20:15,368 INFO L225 Difference]: With dead ends: 13304 [2020-12-09 11:20:15,368 INFO L226 Difference]: Without dead ends: 7187 [2020-12-09 11:20:15,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1353 GetRequests, 1351 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 11:20:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7187 states. [2020-12-09 11:20:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7187 to 6653. [2020-12-09 11:20:15,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6653 states. [2020-12-09 11:20:15,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6653 states to 6653 states and 6840 transitions. [2020-12-09 11:20:15,428 INFO L78 Accepts]: Start accepts. Automaton has 6653 states and 6840 transitions. Word has length 1354 [2020-12-09 11:20:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:20:15,429 INFO L481 AbstractCegarLoop]: Abstraction has 6653 states and 6840 transitions. [2020-12-09 11:20:15,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 11:20:15,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6653 states and 6840 transitions. [2020-12-09 11:20:15,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2020-12-09 11:20:15,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:20:15,445 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 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, 7, 7, 7, 7, 7, 7, 7, 6, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:20:15,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 mathsat -unsat_core_generation=3 [2020-12-09 11:20:15,646 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:20:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:20:15,648 INFO L82 PathProgramCache]: Analyzing trace with hash 387851685, now seen corresponding path program 1 times [2020-12-09 11:20:15,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:20:15,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818043621] [2020-12-09 11:20:15,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/mathsat Starting monitored process 32 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with mathsat -unsat_core_generation=3 [2020-12-09 11:20:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:20:16,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 11:20:16,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:20:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 6346 backedges. 190 proven. 5687 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2020-12-09 11:20:20,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:20:21,059 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 11:20:24,471 WARN L197 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 20 DAG size of output: 3 [2020-12-09 11:20:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6346 backedges. 4342 proven. 211 refuted. 0 times theorem prover too weak. 1793 trivial. 0 not checked. [2020-12-09 11:20:28,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818043621] [2020-12-09 11:20:28,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1602539055] [2020-12-09 11:20:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/cvc4 Starting monitored process 33 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with cvc4 --incremental --print-success --lang smt [2020-12-09 11:20:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:20:28,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 11:20:28,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:20:29,742 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 11:20:29,743 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:20:29,745 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 11:20:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6346 backedges. 527 proven. 0 refuted. 0 times theorem prover too weak. 5819 trivial. 0 not checked. [2020-12-09 11:20:30,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:20:30,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 11:20:30,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 6] total 17 [2020-12-09 11:20:30,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996305789] [2020-12-09 11:20:30,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 11:20:30,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:20:30,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 11:20:30,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-12-09 11:20:30,783 INFO L87 Difference]: Start difference. First operand 6653 states and 6840 transitions. Second operand 5 states. [2020-12-09 11:20:33,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:20:33,051 INFO L93 Difference]: Finished difference Result 13352 states and 13753 transitions. [2020-12-09 11:20:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 11:20:33,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1473 [2020-12-09 11:20:33,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:20:33,052 INFO L225 Difference]: With dead ends: 13352 [2020-12-09 11:20:33,053 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 11:20:33,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4416 GetRequests, 4401 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-12-09 11:20:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 11:20:33,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 11:20:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 11:20:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 11:20:33,059 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1473 [2020-12-09 11:20:33,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:20:33,059 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 11:20:33,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 11:20:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 11:20:33,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 11:20:33,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 cvc4 --incremental --print-success --lang smt,32 mathsat -unsat_core_generation=3 [2020-12-09 11:20:33,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 11:20:33,815 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 201 [2020-12-09 11:20:34,046 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 201 [2020-12-09 11:21:15,449 WARN L197 SmtUtils]: Spent 41.40 s on a formula simplification. DAG size of input: 196 DAG size of output: 77 [2020-12-09 11:21:37,022 WARN L197 SmtUtils]: Spent 21.57 s on a formula simplification. DAG size of input: 196 DAG size of output: 67 [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 11:21:37,025 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-09 11:21:37,026 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-09 11:21:37,027 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,028 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,029 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 11:21:37,030 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-09 11:21:37,031 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,032 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 164) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,033 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 11:21:37,034 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-09 11:21:37,035 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse8 (= (_ bv6 32) ~a15~0)) (.cse0 (= (_ bv1 32) ~a24~0))) (let ((.cse11 (= (_ bv8 32) ~a15~0)) (.cse10 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32))) (.cse6 (or (not (bvsge (_ bv11 32) ~a12~0)) (not (bvslt (_ bv4294967253 32) ~a12~0)))) (.cse1 (= (_ bv5 32) ~a15~0)) (.cse3 (= (_ bv10 32) ~a21~0)) (.cse7 (not (bvsle ~a12~0 (_ bv4294967253 32)))) (.cse5 (not (bvslt (_ bv11 32) ~a12~0))) (.cse9 (or (not .cse8) (not (bvslt (_ bv80 32) ~a12~0)) (not .cse0))) (.cse4 (= (_ bv7 32) ~a15~0)) (.cse2 (= (_ bv6 32) ~a21~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse0 (= (_ bv9 32) ~a15~0)) (and .cse1 .cse5 .cse2 .cse6) (and .cse0 (= (_ bv9 32) ~a21~0)) (and .cse0 .cse3 .cse7 .cse5 .cse8) (and .cse0 .cse9 .cse7 .cse10 .cse6) (and .cse0 (= (_ bv7 32) ~a21~0) .cse9) (and .cse0 (bvslt (_ bv11 32) (bvadd (bvsrem (bvadd ~a12~0 (_ bv464909 32)) (_ bv34 32)) (_ bv42 32))) .cse11) (and .cse0 .cse11 .cse5) (and .cse0 .cse7 .cse10 .cse2 .cse6) (and .cse0 .cse1 .cse3 .cse7 .cse5) (and .cse0 .cse9 (= (_ bv8 32) ~a21~0)) (and .cse0 .cse4 .cse2)))) [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-09 11:21:37,036 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-09 11:21:37,037 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse9 (= (_ bv6 32) ~a15~0)) (.cse0 (= (_ bv1 32) ~a24~0))) (let ((.cse1 (= (_ bv8 32) ~a15~0)) (.cse11 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32))) (.cse7 (or (not (bvsge (_ bv11 32) ~a12~0)) (not (bvslt (_ bv4294967253 32) ~a12~0)))) (.cse2 (= (_ bv5 32) ~a15~0)) (.cse4 (= (_ bv10 32) ~a21~0)) (.cse8 (not (bvsle ~a12~0 (_ bv4294967253 32)))) (.cse6 (not (bvslt (_ bv11 32) ~a12~0))) (.cse10 (or (not .cse9) (not (bvslt (_ bv80 32) ~a12~0)) (not .cse0))) (.cse5 (= (_ bv7 32) ~a15~0)) (.cse3 (= (_ bv6 32) ~a21~0))) (or (and .cse0 (bvslt (_ bv11 32) (bvadd (bvsrem (bvadd (bvsdiv (bvsdiv (bvadd (bvsrem ~a12~0 (_ bv26 32)) (_ bv4294967295 32)) (_ bv5 32)) (_ bv5 32)) (_ bv464909 32)) (_ bv34 32)) (_ bv42 32))) (bvslt (_ bv11 32) (bvadd (bvsrem (bvadd ~a12~0 (_ bv464909 32)) (_ bv34 32)) (_ bv42 32))) .cse1) (and .cse0 .cse2 .cse3) (and .cse0 .cse4 .cse5) (and .cse0 (= (_ bv9 32) ~a15~0)) (and .cse2 .cse6 .cse3 .cse7) (and .cse0 (= (_ bv9 32) ~a21~0)) (and .cse0 .cse4 .cse8 .cse6 .cse9) (and .cse0 .cse10 .cse8 .cse11 .cse7) (and .cse0 (= (_ bv7 32) ~a21~0) .cse10) (and .cse0 .cse1 .cse6) (and .cse0 .cse8 .cse11 .cse3 .cse7) (and .cse0 .cse2 .cse4 .cse8 .cse6) (and .cse0 .cse10 (= (_ bv8 32) ~a21~0)) (and .cse0 .cse5 .cse3)))) [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 11:21:37,038 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 11:21:37,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:21:37 BoogieIcfgContainer [2020-12-09 11:21:37,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 11:21:37,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 11:21:37,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 11:21:37,061 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 11:21:37,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:22" (3/4) ... [2020-12-09 11:21:37,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 11:21:37,080 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 11:21:37,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 11:21:37,082 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 11:21:37,084 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 11:21:37,168 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a463bfc7-9ab9-4215-b066-2b1004bd636f/bin/utaipan/witness.graphml [2020-12-09 11:21:37,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 11:21:37,169 INFO L168 Benchmark]: Toolchain (without parser) took 557808.00 ms. Allocated memory was 52.4 MB in the beginning and 906.0 MB in the end (delta: 853.5 MB). Free memory was 28.9 MB in the beginning and 342.0 MB in the end (delta: -313.1 MB). Peak memory consumption was 538.9 MB. Max. memory is 16.1 GB. [2020-12-09 11:21:37,169 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:21:37,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.01 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.8 MB in the beginning and 37.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-12-09 11:21:37,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.76 ms. Allocated memory is still 67.1 MB. Free memory was 37.2 MB in the beginning and 45.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-12-09 11:21:37,170 INFO L168 Benchmark]: Boogie Preprocessor took 51.03 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 40.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 11:21:37,170 INFO L168 Benchmark]: RCFGBuilder took 2438.85 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 40.4 MB in the beginning and 46.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2020-12-09 11:21:37,171 INFO L168 Benchmark]: TraceAbstraction took 554634.51 ms. Allocated memory was 81.8 MB in the beginning and 906.0 MB in the end (delta: 824.2 MB). Free memory was 45.8 MB in the beginning and 360.9 MB in the end (delta: -315.1 MB). Peak memory consumption was 683.8 MB. Max. memory is 16.1 GB. [2020-12-09 11:21:37,171 INFO L168 Benchmark]: Witness Printer took 107.20 ms. Allocated memory is still 906.0 MB. Free memory was 360.9 MB in the beginning and 342.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 11:21:37,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 492.01 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.8 MB in the beginning and 37.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.76 ms. Allocated memory is still 67.1 MB. Free memory was 37.2 MB in the beginning and 45.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.03 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 40.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2438.85 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 40.4 MB in the beginning and 46.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 554634.51 ms. Allocated memory was 81.8 MB in the beginning and 906.0 MB in the end (delta: 824.2 MB). Free memory was 45.8 MB in the beginning and 360.9 MB in the end (delta: -315.1 MB). Peak memory consumption was 683.8 MB. Max. memory is 16.1 GB. * Witness Printer took 107.20 ms. Allocated memory is still 906.0 MB. Free memory was 360.9 MB in the beginning and 342.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 164]: 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, ~bvadd64(~bvsrem32(~bvadd64(~bvsdiv32(~bvsdiv32(~bvadd64(~bvsrem32(a12, 26bv32), 4294967295bv32), 5bv32), 5bv32), 464909bv32), 34bv32), 42bv32))) && ~bvslt32(11bv32, ~bvadd64(~bvsrem32(~bvadd64(a12, 464909bv32), 34bv32), 42bv32))) && 8bv32 == a15) || ((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21)) || ((1bv32 == a24 && 10bv32 == a21) && 7bv32 == a15)) || (1bv32 == a24 && 9bv32 == a15)) || (((5bv32 == a15 && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (1bv32 == a24 && 9bv32 == a21)) || ((((1bv32 == a24 && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12)) && 6bv32 == a15)) || ((((1bv32 == a24 && ((!(6bv32 == a15) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((1bv32 == a24 && 7bv32 == a21) && ((!(6bv32 == a15) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24)))) || ((1bv32 == a24 && 8bv32 == a15) && !~bvslt32(11bv32, a12))) || ((((1bv32 == a24 && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((((1bv32 == a24 && 5bv32 == a15) && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12))) || ((1bv32 == a24 && ((!(6bv32 == a15) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24))) && 8bv32 == a21)) || ((1bv32 == a24 && 7bv32 == a15) && 6bv32 == a21) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21) || ((1bv32 == a24 && 10bv32 == a21) && 7bv32 == a15)) || (1bv32 == a24 && 9bv32 == a15)) || (((5bv32 == a15 && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (1bv32 == a24 && 9bv32 == a21)) || ((((1bv32 == a24 && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12)) && 6bv32 == a15)) || ((((1bv32 == a24 && ((!(6bv32 == a15) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((1bv32 == a24 && 7bv32 == a21) && ((!(6bv32 == a15) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24)))) || ((1bv32 == a24 && ~bvslt32(11bv32, ~bvadd64(~bvsrem32(~bvadd64(a12, 464909bv32), 34bv32), 42bv32))) && 8bv32 == a15)) || ((1bv32 == a24 && 8bv32 == a15) && !~bvslt32(11bv32, a12))) || ((((1bv32 == a24 && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((((1bv32 == a24 && 5bv32 == a15) && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12))) || ((1bv32 == a24 && ((!(6bv32 == a15) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24))) && 8bv32 == a21)) || ((1bv32 == a24 && 7bv32 == a15) && 6bv32 == a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 490.9s, OverallIterations: 18, TraceHistogramMax: 12, AutomataDifference: 291.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 63.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1687 SDtfs, 8168 SDslu, 599 SDs, 0 SdLazy, 33543 SolverSat, 2734 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 246.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46199 GetRequests, 45738 SyntacticMatches, 182 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2333 ImplicationChecksByTransitivity, 104.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6759occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 18 MinimizatonAttempts, 3084 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 131 NumberOfFragments, 490 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10762 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 11585 FormulaSimplificationTreeSizeReductionInter, 62.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 7.9s SatisfiabilityAnalysisTime, 181.8s InterpolantComputationTime, 27340 NumberOfCodeBlocks, 27340 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 46139 ConstructedInterpolants, 0 QuantifiedInterpolants, 373924341 SizeOfPredicates, 138 NumberOfNonLiveVariables, 30388 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 52 InterpolantComputations, 15 PerfectInterpolantSequences, 125900/147304 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...