./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label41.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label41.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2663b43a3e8dd0300c369fc191e1c2161395095 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:31:30,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:31:30,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:31:30,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:31:30,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:31:30,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:31:30,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:31:30,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:31:30,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:31:30,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:31:30,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:31:30,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:31:30,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:31:30,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:31:30,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:31:30,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:31:30,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:31:30,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:31:30,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:31:30,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:31:30,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:31:30,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:31:30,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:31:30,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:31:30,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:31:30,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:31:30,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:31:30,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:31:30,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:31:30,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:31:30,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:31:30,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:31:30,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:31:30,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:31:30,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:31:30,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:31:30,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:31:30,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:31:30,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:31:30,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:31:30,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:31:30,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:31:30,886 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:31:30,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:31:30,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:31:30,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:31:30,889 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:31:30,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:31:30,890 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:31:30,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:31:30,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:31:30,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:31:30,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:31:30,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:31:30,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:31:30,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:31:30,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:31:30,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:31:30,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:31:30,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:31:30,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:31:30,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:31:30,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:31:30,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:30,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:31:30,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:31:30,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:31:30,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:31:30,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:31:30,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:31:30,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:31:30,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> c2663b43a3e8dd0300c369fc191e1c2161395095 [2020-10-19 22:31:31,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:31:31,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:31:31,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:31:31,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:31:31,145 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:31:31,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2020-10-19 22:31:31,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585eed3bd/45646f0210e64e338df8162d9cd48447/FLAG0f08b4fd4 [2020-10-19 22:31:31,810 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:31:31,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2020-10-19 22:31:31,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585eed3bd/45646f0210e64e338df8162d9cd48447/FLAG0f08b4fd4 [2020-10-19 22:31:32,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585eed3bd/45646f0210e64e338df8162d9cd48447 [2020-10-19 22:31:32,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:31:32,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:31:32,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:32,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:31:32,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:31:32,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a58770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32, skipping insertion in model container [2020-10-19 22:31:32,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:31:32,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:31:32,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:32,636 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:31:32,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:32,863 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:31:32,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32 WrapperNode [2020-10-19 22:31:32,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:32,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:32,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:31:32,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:31:32,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:32,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:33,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:31:33,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:31:33,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:31:33,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... [2020-10-19 22:31:33,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:31:33,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:31:33,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:31:33,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:31:33,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:31:33,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:31:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:31:33,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:31:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:31:34,545 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:31:34,698 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:31:34,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:34 BoogieIcfgContainer [2020-10-19 22:31:34,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:31:34,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:31:34,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:31:34,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:31:34,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:31:32" (1/3) ... [2020-10-19 22:31:34,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f063de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:34, skipping insertion in model container [2020-10-19 22:31:34,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:32" (2/3) ... [2020-10-19 22:31:34,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f063de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:34, skipping insertion in model container [2020-10-19 22:31:34,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:34" (3/3) ... [2020-10-19 22:31:34,713 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-10-19 22:31:34,724 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:31:34,732 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:31:34,746 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:31:34,776 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:31:34,777 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:31:34,777 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:31:34,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:31:34,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:31:34,779 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:31:34,779 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:31:34,779 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:31:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-19 22:31:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-19 22:31:34,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:34,811 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, 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] [2020-10-19 22:31:34,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:34,816 INFO L82 PathProgramCache]: Analyzing trace with hash 372621549, now seen corresponding path program 1 times [2020-10-19 22:31:34,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:34,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676779725] [2020-10-19 22:31:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:35,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:35,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676779725] [2020-10-19 22:31:35,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:35,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:35,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284134094] [2020-10-19 22:31:35,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:35,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:35,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:35,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:35,223 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-19 22:31:36,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:36,117 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-10-19 22:31:36,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:36,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-10-19 22:31:36,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:36,135 INFO L225 Difference]: With dead ends: 640 [2020-10-19 22:31:36,136 INFO L226 Difference]: Without dead ends: 318 [2020-10-19 22:31:36,140 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 [2020-10-19 22:31:36,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-19 22:31:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-10-19 22:31:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-19 22:31:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-10-19 22:31:36,210 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 90 [2020-10-19 22:31:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:36,211 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-10-19 22:31:36,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:36,211 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-10-19 22:31:36,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-19 22:31:36,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:36,216 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-19 22:31:36,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:31:36,217 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:36,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1103465114, now seen corresponding path program 1 times [2020-10-19 22:31:36,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:36,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225874818] [2020-10-19 22:31:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:36,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225874818] [2020-10-19 22:31:36,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:36,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:36,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128175846] [2020-10-19 22:31:36,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:36,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:36,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:36,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:36,350 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-10-19 22:31:36,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:36,935 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-10-19 22:31:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:36,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-10-19 22:31:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:36,941 INFO L225 Difference]: With dead ends: 910 [2020-10-19 22:31:36,941 INFO L226 Difference]: Without dead ends: 599 [2020-10-19 22:31:36,944 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 [2020-10-19 22:31:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-19 22:31:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-10-19 22:31:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-19 22:31:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-10-19 22:31:36,990 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 94 [2020-10-19 22:31:36,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:36,990 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-10-19 22:31:36,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-10-19 22:31:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-19 22:31:37,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:37,000 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-19 22:31:37,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:31:37,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:37,001 INFO L82 PathProgramCache]: Analyzing trace with hash 941217127, now seen corresponding path program 1 times [2020-10-19 22:31:37,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:37,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346161257] [2020-10-19 22:31:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:37,128 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:37,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346161257] [2020-10-19 22:31:37,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627037725] [2020-10-19 22:31:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:31:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:37,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:37,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:37,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:37,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:37,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020122403] [2020-10-19 22:31:37,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:37,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:37,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:37,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:37,307 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-10-19 22:31:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:37,929 INFO L93 Difference]: Finished difference Result 1476 states and 1965 transitions. [2020-10-19 22:31:37,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:37,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-10-19 22:31:37,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:37,939 INFO L225 Difference]: With dead ends: 1476 [2020-10-19 22:31:37,939 INFO L226 Difference]: Without dead ends: 882 [2020-10-19 22:31:37,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:37,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-10-19 22:31:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 881. [2020-10-19 22:31:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-10-19 22:31:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1147 transitions. [2020-10-19 22:31:37,964 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1147 transitions. Word has length 99 [2020-10-19 22:31:37,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:37,964 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1147 transitions. [2020-10-19 22:31:37,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1147 transitions. [2020-10-19 22:31:37,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-19 22:31:37,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:37,967 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-19 22:31:38,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:31:38,181 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:38,182 INFO L82 PathProgramCache]: Analyzing trace with hash 741827353, now seen corresponding path program 1 times [2020-10-19 22:31:38,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:38,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423075517] [2020-10-19 22:31:38,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-19 22:31:38,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423075517] [2020-10-19 22:31:38,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065512748] [2020-10-19 22:31:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:38,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:38,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:38,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:38,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:38,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990360376] [2020-10-19 22:31:38,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:38,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:38,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:38,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:38,522 INFO L87 Difference]: Start difference. First operand 881 states and 1147 transitions. Second operand 3 states. [2020-10-19 22:31:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:39,185 INFO L93 Difference]: Finished difference Result 2040 states and 2662 transitions. [2020-10-19 22:31:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:39,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-10-19 22:31:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:39,191 INFO L225 Difference]: With dead ends: 2040 [2020-10-19 22:31:39,192 INFO L226 Difference]: Without dead ends: 1161 [2020-10-19 22:31:39,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:39,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-10-19 22:31:39,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1160. [2020-10-19 22:31:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2020-10-19 22:31:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1435 transitions. [2020-10-19 22:31:39,219 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1435 transitions. Word has length 115 [2020-10-19 22:31:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:39,220 INFO L481 AbstractCegarLoop]: Abstraction has 1160 states and 1435 transitions. [2020-10-19 22:31:39,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:39,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1435 transitions. [2020-10-19 22:31:39,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-19 22:31:39,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:39,223 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-19 22:31:39,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:39,425 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1699088414, now seen corresponding path program 1 times [2020-10-19 22:31:39,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:39,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407215118] [2020-10-19 22:31:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:39,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407215118] [2020-10-19 22:31:39,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:39,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:39,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624619565] [2020-10-19 22:31:39,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:39,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:39,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:39,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:39,490 INFO L87 Difference]: Start difference. First operand 1160 states and 1435 transitions. Second operand 3 states. [2020-10-19 22:31:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:40,023 INFO L93 Difference]: Finished difference Result 2601 states and 3243 transitions. [2020-10-19 22:31:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:40,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-10-19 22:31:40,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:40,034 INFO L225 Difference]: With dead ends: 2601 [2020-10-19 22:31:40,034 INFO L226 Difference]: Without dead ends: 1443 [2020-10-19 22:31:40,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:40,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2020-10-19 22:31:40,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1440. [2020-10-19 22:31:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2020-10-19 22:31:40,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1740 transitions. [2020-10-19 22:31:40,070 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1740 transitions. Word has length 115 [2020-10-19 22:31:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:40,071 INFO L481 AbstractCegarLoop]: Abstraction has 1440 states and 1740 transitions. [2020-10-19 22:31:40,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:40,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1740 transitions. [2020-10-19 22:31:40,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-19 22:31:40,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:40,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:40,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:31:40,075 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:40,075 INFO L82 PathProgramCache]: Analyzing trace with hash -439949385, now seen corresponding path program 1 times [2020-10-19 22:31:40,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:40,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270131920] [2020-10-19 22:31:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:40,139 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:40,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270131920] [2020-10-19 22:31:40,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:40,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:40,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008065904] [2020-10-19 22:31:40,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:40,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:40,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:40,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:40,141 INFO L87 Difference]: Start difference. First operand 1440 states and 1740 transitions. Second operand 3 states. [2020-10-19 22:31:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:40,663 INFO L93 Difference]: Finished difference Result 3997 states and 4858 transitions. [2020-10-19 22:31:40,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:40,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-10-19 22:31:40,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:40,683 INFO L225 Difference]: With dead ends: 3997 [2020-10-19 22:31:40,683 INFO L226 Difference]: Without dead ends: 2559 [2020-10-19 22:31:40,686 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 [2020-10-19 22:31:40,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2020-10-19 22:31:40,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2559. [2020-10-19 22:31:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2559 states. [2020-10-19 22:31:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3014 transitions. [2020-10-19 22:31:40,736 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3014 transitions. Word has length 118 [2020-10-19 22:31:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:40,744 INFO L481 AbstractCegarLoop]: Abstraction has 2559 states and 3014 transitions. [2020-10-19 22:31:40,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3014 transitions. [2020-10-19 22:31:40,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-19 22:31:40,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:40,750 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:40,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:31:40,751 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:40,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:40,751 INFO L82 PathProgramCache]: Analyzing trace with hash -596947260, now seen corresponding path program 1 times [2020-10-19 22:31:40,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:40,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841489245] [2020-10-19 22:31:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:40,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841489245] [2020-10-19 22:31:40,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:40,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:40,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566381106] [2020-10-19 22:31:40,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:40,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:40,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:40,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:40,849 INFO L87 Difference]: Start difference. First operand 2559 states and 3014 transitions. Second operand 3 states. [2020-10-19 22:31:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:41,432 INFO L93 Difference]: Finished difference Result 5115 states and 6026 transitions. [2020-10-19 22:31:41,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:41,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-10-19 22:31:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:41,443 INFO L225 Difference]: With dead ends: 5115 [2020-10-19 22:31:41,443 INFO L226 Difference]: Without dead ends: 2558 [2020-10-19 22:31:41,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2020-10-19 22:31:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2553. [2020-10-19 22:31:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2553 states. [2020-10-19 22:31:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2553 states to 2553 states and 2919 transitions. [2020-10-19 22:31:41,485 INFO L78 Accepts]: Start accepts. Automaton has 2553 states and 2919 transitions. Word has length 123 [2020-10-19 22:31:41,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:41,486 INFO L481 AbstractCegarLoop]: Abstraction has 2553 states and 2919 transitions. [2020-10-19 22:31:41,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:41,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2553 states and 2919 transitions. [2020-10-19 22:31:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-19 22:31:41,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:41,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:41,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:31:41,490 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:41,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:41,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1138152211, now seen corresponding path program 1 times [2020-10-19 22:31:41,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:41,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158772618] [2020-10-19 22:31:41,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:41,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158772618] [2020-10-19 22:31:41,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:41,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:41,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73908081] [2020-10-19 22:31:41,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:41,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:41,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:41,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:41,541 INFO L87 Difference]: Start difference. First operand 2553 states and 2919 transitions. Second operand 3 states. [2020-10-19 22:31:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:42,127 INFO L93 Difference]: Finished difference Result 6798 states and 7801 transitions. [2020-10-19 22:31:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:42,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-10-19 22:31:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:42,143 INFO L225 Difference]: With dead ends: 6798 [2020-10-19 22:31:42,143 INFO L226 Difference]: Without dead ends: 4247 [2020-10-19 22:31:42,147 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 [2020-10-19 22:31:42,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2020-10-19 22:31:42,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4246. [2020-10-19 22:31:42,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4246 states. [2020-10-19 22:31:42,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4246 states to 4246 states and 4789 transitions. [2020-10-19 22:31:42,211 INFO L78 Accepts]: Start accepts. Automaton has 4246 states and 4789 transitions. Word has length 123 [2020-10-19 22:31:42,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:42,211 INFO L481 AbstractCegarLoop]: Abstraction has 4246 states and 4789 transitions. [2020-10-19 22:31:42,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:42,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4246 states and 4789 transitions. [2020-10-19 22:31:42,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-19 22:31:42,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:42,218 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-19 22:31:42,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:31:42,219 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:42,220 INFO L82 PathProgramCache]: Analyzing trace with hash 83537242, now seen corresponding path program 1 times [2020-10-19 22:31:42,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:42,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238146948] [2020-10-19 22:31:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-19 22:31:42,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238146948] [2020-10-19 22:31:42,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062154137] [2020-10-19 22:31:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:42,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:42,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-19 22:31:42,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:42,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 22:31:42,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609732902] [2020-10-19 22:31:42,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:42,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:42,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:42,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:42,412 INFO L87 Difference]: Start difference. First operand 4246 states and 4789 transitions. Second operand 3 states. [2020-10-19 22:31:42,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:42,713 INFO L93 Difference]: Finished difference Result 7777 states and 8777 transitions. [2020-10-19 22:31:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:42,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-10-19 22:31:42,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:42,728 INFO L225 Difference]: With dead ends: 7777 [2020-10-19 22:31:42,728 INFO L226 Difference]: Without dead ends: 3391 [2020-10-19 22:31:42,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:42,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2020-10-19 22:31:42,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3391. [2020-10-19 22:31:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3391 states. [2020-10-19 22:31:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3391 states to 3391 states and 3746 transitions. [2020-10-19 22:31:42,783 INFO L78 Accepts]: Start accepts. Automaton has 3391 states and 3746 transitions. Word has length 142 [2020-10-19 22:31:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:42,784 INFO L481 AbstractCegarLoop]: Abstraction has 3391 states and 3746 transitions. [2020-10-19 22:31:42,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3391 states and 3746 transitions. [2020-10-19 22:31:42,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-19 22:31:42,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:42,790 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:43,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:43,004 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:43,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:43,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1389352424, now seen corresponding path program 1 times [2020-10-19 22:31:43,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:43,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747735626] [2020-10-19 22:31:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-19 22:31:43,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747735626] [2020-10-19 22:31:43,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:43,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:43,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633311314] [2020-10-19 22:31:43,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:43,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:43,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:43,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:43,093 INFO L87 Difference]: Start difference. First operand 3391 states and 3746 transitions. Second operand 3 states. [2020-10-19 22:31:43,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:43,692 INFO L93 Difference]: Finished difference Result 6355 states and 7051 transitions. [2020-10-19 22:31:43,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:43,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-10-19 22:31:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:43,708 INFO L225 Difference]: With dead ends: 6355 [2020-10-19 22:31:43,709 INFO L226 Difference]: Without dead ends: 3106 [2020-10-19 22:31:43,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:43,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-10-19 22:31:43,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3106. [2020-10-19 22:31:43,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3106 states. [2020-10-19 22:31:43,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 3420 transitions. [2020-10-19 22:31:43,787 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 3420 transitions. Word has length 147 [2020-10-19 22:31:43,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:43,788 INFO L481 AbstractCegarLoop]: Abstraction has 3106 states and 3420 transitions. [2020-10-19 22:31:43,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:43,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 3420 transitions. [2020-10-19 22:31:43,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-19 22:31:43,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:43,794 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:43,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:31:43,795 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:43,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:43,795 INFO L82 PathProgramCache]: Analyzing trace with hash -91914518, now seen corresponding path program 1 times [2020-10-19 22:31:43,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:43,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463815974] [2020-10-19 22:31:43,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-19 22:31:44,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463815974] [2020-10-19 22:31:44,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:44,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:44,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169488679] [2020-10-19 22:31:44,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:44,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:44,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:44,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:44,358 INFO L87 Difference]: Start difference. First operand 3106 states and 3420 transitions. Second operand 3 states. [2020-10-19 22:31:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:44,864 INFO L93 Difference]: Finished difference Result 6348 states and 7005 transitions. [2020-10-19 22:31:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:44,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-10-19 22:31:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:44,874 INFO L225 Difference]: With dead ends: 6348 [2020-10-19 22:31:44,874 INFO L226 Difference]: Without dead ends: 2679 [2020-10-19 22:31:44,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2020-10-19 22:31:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2679. [2020-10-19 22:31:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2679 states. [2020-10-19 22:31:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 2911 transitions. [2020-10-19 22:31:44,916 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 2911 transitions. Word has length 158 [2020-10-19 22:31:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:44,916 INFO L481 AbstractCegarLoop]: Abstraction has 2679 states and 2911 transitions. [2020-10-19 22:31:44,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 2911 transitions. [2020-10-19 22:31:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-19 22:31:44,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:44,922 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:44,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:31:44,923 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:44,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:44,924 INFO L82 PathProgramCache]: Analyzing trace with hash -285629746, now seen corresponding path program 1 times [2020-10-19 22:31:44,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:44,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492763148] [2020-10-19 22:31:44,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-19 22:31:44,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492763148] [2020-10-19 22:31:44,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808122327] [2020-10-19 22:31:44,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:45,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:45,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-19 22:31:45,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:45,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:45,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506986837] [2020-10-19 22:31:45,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:45,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:45,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:45,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:45,180 INFO L87 Difference]: Start difference. First operand 2679 states and 2911 transitions. Second operand 3 states. [2020-10-19 22:31:45,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:45,764 INFO L93 Difference]: Finished difference Result 5778 states and 6308 transitions. [2020-10-19 22:31:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:45,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-10-19 22:31:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:45,776 INFO L225 Difference]: With dead ends: 5778 [2020-10-19 22:31:45,776 INFO L226 Difference]: Without dead ends: 2961 [2020-10-19 22:31:45,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2020-10-19 22:31:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2959. [2020-10-19 22:31:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2020-10-19 22:31:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 3199 transitions. [2020-10-19 22:31:45,821 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 3199 transitions. Word has length 182 [2020-10-19 22:31:45,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:45,821 INFO L481 AbstractCegarLoop]: Abstraction has 2959 states and 3199 transitions. [2020-10-19 22:31:45,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 3199 transitions. [2020-10-19 22:31:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-19 22:31:45,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:45,828 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:46,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:46,043 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:46,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:46,043 INFO L82 PathProgramCache]: Analyzing trace with hash 828237284, now seen corresponding path program 1 times [2020-10-19 22:31:46,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:46,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854721858] [2020-10-19 22:31:46,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:46,129 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-10-19 22:31:46,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854721858] [2020-10-19 22:31:46,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130219355] [2020-10-19 22:31:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:46,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:46,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:46,330 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-19 22:31:46,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:46,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:46,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68329789] [2020-10-19 22:31:46,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:46,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:46,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:46,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:46,333 INFO L87 Difference]: Start difference. First operand 2959 states and 3199 transitions. Second operand 3 states. [2020-10-19 22:31:46,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:46,766 INFO L93 Difference]: Finished difference Result 5350 states and 5792 transitions. [2020-10-19 22:31:46,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:46,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-10-19 22:31:46,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:46,767 INFO L225 Difference]: With dead ends: 5350 [2020-10-19 22:31:46,768 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:31:46,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:46,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:31:46,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:31:46,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:31:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:31:46,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-10-19 22:31:46,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:46,774 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:31:46,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:31:46,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:31:46,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-19 22:31:46,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:31:47,252 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-10-19 22:31:47,456 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-10-19 22:31:47,460 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-19 22:31:47,460 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-19 22:31:47,460 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-19 22:31:47,460 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:47,460 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-19 22:31:47,460 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-19 22:31:47,461 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,462 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,463 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,463 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-19 22:31:47,463 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-19 22:31:47,463 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-19 22:31:47,464 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-19 22:31:47,464 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-19 22:31:47,464 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,464 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,464 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,465 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,466 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-19 22:31:47,466 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-19 22:31:47,466 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-19 22:31:47,466 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:47,467 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-19 22:31:47,468 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-19 22:31:47,469 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-19 22:31:47,470 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-19 22:31:47,471 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-19 22:31:47,472 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-19 22:31:47,473 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-19 22:31:47,473 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-19 22:31:47,473 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-19 22:31:47,473 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:47,473 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:47,473 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-19 22:31:47,473 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:31:47,474 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse6 (<= ~a17~0 7)) (.cse5 (<= ~a28~0 9)) (.cse0 (= ~a19~0 1)) (.cse9 (= ~a25~0 0)) (.cse2 (<= ~a28~0 7)) (.cse10 (<= ~a19~0 0)) (.cse4 (<= 9 ~a28~0)) (.cse1 (= ~a25~0 1)) (.cse8 (= ~a11~0 0)) (.cse3 (<= ~a17~0 8)) (.cse7 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse6) (and .cse4 .cse0 .cse1 .cse3 .cse7) (and .cse0 .cse1 .cse8 .cse3) (and .cse4 .cse9 .cse6 .cse7) (and .cse10 .cse9 .cse5 .cse3) (and .cse4 .cse0 .cse9 .cse3 .cse7) (and .cse0 .cse9 .cse8 .cse2 .cse3) (and .cse10 .cse4 .cse1 .cse8 .cse3 .cse7))) [2020-10-19 22:31:47,474 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,475 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,475 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-19 22:31:47,475 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-19 22:31:47,476 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-19 22:31:47,476 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-19 22:31:47,476 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:47,476 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:47,476 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-19 22:31:47,476 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,477 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,478 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-19 22:31:47,478 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-19 22:31:47,478 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-19 22:31:47,478 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-19 22:31:47,478 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-19 22:31:47,479 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-19 22:31:47,479 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:47,479 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:47,479 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-19 22:31:47,479 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,479 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,480 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:47,480 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:47,480 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-19 22:31:47,480 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-19 22:31:47,480 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-19 22:31:47,480 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-19 22:31:47,481 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse6 (<= ~a17~0 7)) (.cse5 (<= ~a28~0 9)) (.cse0 (= ~a19~0 1)) (.cse9 (= ~a25~0 0)) (.cse2 (<= ~a28~0 7)) (.cse10 (<= ~a19~0 0)) (.cse4 (<= 9 ~a28~0)) (.cse1 (= ~a25~0 1)) (.cse8 (= ~a11~0 0)) (.cse3 (<= ~a17~0 8)) (.cse7 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse6) (and .cse4 .cse0 .cse1 .cse3 .cse7) (and .cse0 .cse1 .cse8 .cse3) (and .cse4 .cse9 .cse6 .cse7) (and .cse10 .cse9 .cse5 .cse3) (and .cse4 .cse0 .cse9 .cse3 .cse7) (and .cse0 .cse9 .cse8 .cse2 .cse3) (and .cse10 .cse4 .cse1 .cse8 .cse3 .cse7))) [2020-10-19 22:31:47,481 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,481 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,481 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-19 22:31:47,481 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-19 22:31:47,482 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-19 22:31:47,482 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-19 22:31:47,482 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-19 22:31:47,482 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,482 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,482 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-19 22:31:47,483 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-19 22:31:47,483 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-19 22:31:47,483 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-19 22:31:47,483 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-19 22:31:47,483 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-19 22:31:47,483 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-19 22:31:47,484 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:47,484 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:47,484 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,484 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,484 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-19 22:31:47,484 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,485 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,485 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-19 22:31:47,485 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-19 22:31:47,485 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-19 22:31:47,485 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-19 22:31:47,485 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-19 22:31:47,486 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-19 22:31:47,486 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,486 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,486 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,486 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-19 22:31:47,486 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-19 22:31:47,487 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-19 22:31:47,487 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-19 22:31:47,487 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-19 22:31:47,487 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,487 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,487 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,487 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-19 22:31:47,488 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-19 22:31:47,488 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-19 22:31:47,488 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-19 22:31:47,488 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-19 22:31:47,488 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-19 22:31:47,488 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:31:47,489 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,489 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,489 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,489 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-19 22:31:47,489 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-19 22:31:47,489 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-19 22:31:47,490 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-19 22:31:47,490 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-19 22:31:47,490 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-19 22:31:47,490 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-19 22:31:47,490 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-19 22:31:47,490 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,491 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,491 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,491 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-19 22:31:47,491 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-19 22:31:47,491 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-19 22:31:47,491 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-19 22:31:47,492 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-19 22:31:47,492 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,492 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,492 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:47,492 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-19 22:31:47,492 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-19 22:31:47,493 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-19 22:31:47,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:31:47 BoogieIcfgContainer [2020-10-19 22:31:47,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:31:47,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:31:47,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:31:47,539 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:31:47,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:34" (3/4) ... [2020-10-19 22:31:47,543 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:31:47,570 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:31:47,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:31:47,573 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:47,574 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:47,722 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:31:47,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:31:47,724 INFO L168 Benchmark]: Toolchain (without parser) took 15681.03 ms. Allocated memory was 35.1 MB in the beginning and 172.5 MB in the end (delta: 137.4 MB). Free memory was 12.0 MB in the beginning and 34.3 MB in the end (delta: -22.4 MB). Peak memory consumption was 115.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,724 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 33.0 MB. Free memory was 8.0 MB in the beginning and 7.9 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.87 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 11.2 MB in the beginning and 19.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.26 ms. Allocated memory is still 46.1 MB. Free memory was 19.0 MB in the beginning and 13.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,725 INFO L168 Benchmark]: Boogie Preprocessor took 129.82 ms. Allocated memory is still 46.1 MB. Free memory was 13.3 MB in the beginning and 21.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,726 INFO L168 Benchmark]: RCFGBuilder took 1569.78 ms. Allocated memory was 46.1 MB in the beginning and 65.5 MB in the end (delta: 19.4 MB). Free memory was 21.2 MB in the beginning and 44.9 MB in the end (delta: -23.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,726 INFO L168 Benchmark]: TraceAbstraction took 12835.33 ms. Allocated memory was 65.5 MB in the beginning and 172.5 MB in the end (delta: 107.0 MB). Free memory was 44.5 MB in the beginning and 55.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 126.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,726 INFO L168 Benchmark]: Witness Printer took 184.16 ms. Allocated memory is still 172.5 MB. Free memory was 55.4 MB in the beginning and 34.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:47,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 33.0 MB. Free memory was 8.0 MB in the beginning and 7.9 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 811.87 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 11.2 MB in the beginning and 19.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 135.26 ms. Allocated memory is still 46.1 MB. Free memory was 19.0 MB in the beginning and 13.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 129.82 ms. Allocated memory is still 46.1 MB. Free memory was 13.3 MB in the beginning and 21.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1569.78 ms. Allocated memory was 46.1 MB in the beginning and 65.5 MB in the end (delta: 19.4 MB). Free memory was 21.2 MB in the beginning and 44.9 MB in the end (delta: -23.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 12835.33 ms. Allocated memory was 65.5 MB in the beginning and 172.5 MB in the end (delta: 107.0 MB). Free memory was 44.5 MB in the beginning and 55.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 126.6 MB. Max. memory is 14.3 GB. * Witness Printer took 184.16 ms. Allocated memory is still 172.5 MB. Free memory was 55.4 MB in the beginning and 34.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((((((((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8) || (((9 <= a28 && a25 == 1) && a28 <= 9) && a17 <= 7)) || ((((9 <= a28 && a19 == 1) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a25 == 0) && a17 <= 7) && a28 <= 10)) || (((a19 <= 0 && a25 == 0) && a28 <= 9) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a25 == 0) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && a25 == 0) && a11 == 0) && a28 <= 7) && a17 <= 8)) || (((((a19 <= 0 && 9 <= a28) && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((((((((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8) || (((9 <= a28 && a25 == 1) && a28 <= 9) && a17 <= 7)) || ((((9 <= a28 && a19 == 1) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a25 == 0) && a17 <= 7) && a28 <= 10)) || (((a19 <= 0 && a25 == 0) && a28 <= 9) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a25 == 0) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && a25 == 0) && a11 == 0) && a28 <= 7) && a17 <= 8)) || (((((a19 <= 0 && 9 <= a28) && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.2s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1647 SDtfs, 1704 SDslu, 186 SDs, 0 SdLazy, 4579 SolverSat, 680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 775 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4246occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 21 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 267 HoareAnnotationTreeSize, 3 FomulaSimplifications, 606 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 142 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 2458 NumberOfCodeBlocks, 2458 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2440 ConstructedInterpolants, 0 QuantifiedInterpolants, 529666 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1634 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 1306/1321 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...