./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.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/loop-invgen/apache-get-tag.i.p+lhb-reducer.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 4b3c25b2e1855c4c0a30872aa894c42326e9c019 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:59:58,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:59:58,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:59:58,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:59:58,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:59:58,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:59:58,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:59:58,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:59:58,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:59:58,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:59:58,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:59:58,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:59:58,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:59:58,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:59:58,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:59:58,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:59:58,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:59:58,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:59:58,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:59:58,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:59:58,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:59:58,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:59:58,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:59:58,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:59:58,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:59:58,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:59:58,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:59:58,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:59:58,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:59:58,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:59:58,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:59:58,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:59:58,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:59:58,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:59:58,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:59:58,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:59:58,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:59:58,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:59:58,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:59:58,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:59:58,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:59:58,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:59:58,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:59:58,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:59:58,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:59:58,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:59:58,836 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:59:58,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:59:58,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:59:58,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:59:58,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:59:58,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:59:58,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:59:58,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:59:58,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:59:58,838 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:59:58,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:59:58,839 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:59:58,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:59:58,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:59:58,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:59:58,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:59:58,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:59:58,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:59:58,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:59:58,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:59:58,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:59:58,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:59:58,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:59:58,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:59:58,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:59:58,842 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 -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2020-10-20 00:59:59,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:59:59,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:59:59,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:59:59,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:59:59,063 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:59:59,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-10-20 00:59:59,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ab94bf7b/e061e93c07484f1cbd98b6b1cdc549ec/FLAG144330153 [2020-10-20 00:59:59,550 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:59:59,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-10-20 00:59:59,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ab94bf7b/e061e93c07484f1cbd98b6b1cdc549ec/FLAG144330153 [2020-10-20 00:59:59,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ab94bf7b/e061e93c07484f1cbd98b6b1cdc549ec [2020-10-20 00:59:59,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:59:59,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:59:59,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:59:59,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:59:59,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:59:59,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:59:59" (1/1) ... [2020-10-20 00:59:59,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7c6c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:59:59, skipping insertion in model container [2020-10-20 00:59:59,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:59:59" (1/1) ... [2020-10-20 00:59:59,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:00:00,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:00:00,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:00:00,389 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:00:00,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:00:00,505 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:00:00,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00 WrapperNode [2020-10-20 01:00:00,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:00:00,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:00:00,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:00:00,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:00:00,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:00:00,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:00:00,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:00:00,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:00:00,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (1/1) ... [2020-10-20 01:00:00,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:00:00,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:00:00,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:00:00,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:00:00,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (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 [2020-10-20 01:00:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:00:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:00:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:00:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:00:01,396 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:00:01,397 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-10-20 01:00:01,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:00:01 BoogieIcfgContainer [2020-10-20 01:00:01,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:00:01,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:00:01,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:00:01,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:00:01,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:59:59" (1/3) ... [2020-10-20 01:00:01,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ad9846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:00:01, skipping insertion in model container [2020-10-20 01:00:01,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:00:00" (2/3) ... [2020-10-20 01:00:01,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ad9846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:00:01, skipping insertion in model container [2020-10-20 01:00:01,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:00:01" (3/3) ... [2020-10-20 01:00:01,407 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-10-20 01:00:01,419 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:00:01,426 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-20 01:00:01,440 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-20 01:00:01,466 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:00:01,466 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:00:01,466 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:00:01,466 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:00:01,472 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:00:01,472 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:00:01,472 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:00:01,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:00:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-10-20 01:00:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 01:00:01,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:01,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:01,502 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:01,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:01,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2020-10-20 01:00:01,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:01,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918569242] [2020-10-20 01:00:01,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:01,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:01,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918569242] [2020-10-20 01:00:01,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:01,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:00:01,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704334518] [2020-10-20 01:00:01,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:00:01,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:01,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:00:01,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:00:01,792 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 4 states. [2020-10-20 01:00:02,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:02,127 INFO L93 Difference]: Finished difference Result 147 states and 221 transitions. [2020-10-20 01:00:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:00:02,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 01:00:02,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:02,143 INFO L225 Difference]: With dead ends: 147 [2020-10-20 01:00:02,143 INFO L226 Difference]: Without dead ends: 114 [2020-10-20 01:00:02,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:02,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-20 01:00:02,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-20 01:00:02,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-20 01:00:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2020-10-20 01:00:02,195 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2020-10-20 01:00:02,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:02,195 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2020-10-20 01:00:02,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:00:02,196 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2020-10-20 01:00:02,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 01:00:02,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:02,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:02,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:00:02,217 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:02,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:02,218 INFO L82 PathProgramCache]: Analyzing trace with hash 118403696, now seen corresponding path program 1 times [2020-10-20 01:00:02,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:02,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565460689] [2020-10-20 01:00:02,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:02,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565460689] [2020-10-20 01:00:02,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:02,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:00:02,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100524369] [2020-10-20 01:00:02,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:00:02,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:02,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:00:02,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:02,294 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand 5 states. [2020-10-20 01:00:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:02,548 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2020-10-20 01:00:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:00:02,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-20 01:00:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:02,550 INFO L225 Difference]: With dead ends: 117 [2020-10-20 01:00:02,551 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 01:00:02,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:00:02,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 01:00:02,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-20 01:00:02,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 01:00:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2020-10-20 01:00:02,563 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2020-10-20 01:00:02,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:02,563 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2020-10-20 01:00:02,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:00:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2020-10-20 01:00:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 01:00:02,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:02,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:02,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:00:02,565 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:02,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:02,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1410106030, now seen corresponding path program 1 times [2020-10-20 01:00:02,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:02,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430658419] [2020-10-20 01:00:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:02,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430658419] [2020-10-20 01:00:02,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:02,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:00:02,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298477854] [2020-10-20 01:00:02,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:00:02,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:02,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:00:02,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:02,637 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2020-10-20 01:00:02,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:02,903 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2020-10-20 01:00:02,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:00:02,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 01:00:02,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:02,905 INFO L225 Difference]: With dead ends: 109 [2020-10-20 01:00:02,905 INFO L226 Difference]: Without dead ends: 107 [2020-10-20 01:00:02,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-20 01:00:02,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-20 01:00:02,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-20 01:00:02,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2020-10-20 01:00:02,924 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2020-10-20 01:00:02,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:02,925 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2020-10-20 01:00:02,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:00:02,925 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2020-10-20 01:00:02,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 01:00:02,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:02,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:02,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:00:02,927 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash 763620047, now seen corresponding path program 1 times [2020-10-20 01:00:02,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:02,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94218477] [2020-10-20 01:00:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:03,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94218477] [2020-10-20 01:00:03,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:03,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:00:03,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227375603] [2020-10-20 01:00:03,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:00:03,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:03,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:00:03,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:00:03,020 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 4 states. [2020-10-20 01:00:03,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:03,165 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2020-10-20 01:00:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:00:03,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 01:00:03,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:03,167 INFO L225 Difference]: With dead ends: 107 [2020-10-20 01:00:03,167 INFO L226 Difference]: Without dead ends: 103 [2020-10-20 01:00:03,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-20 01:00:03,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-20 01:00:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-20 01:00:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2020-10-20 01:00:03,185 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2020-10-20 01:00:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:03,186 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2020-10-20 01:00:03,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:00:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2020-10-20 01:00:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 01:00:03,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:03,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:03,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:00:03,187 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:03,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:03,188 INFO L82 PathProgramCache]: Analyzing trace with hash -2078680795, now seen corresponding path program 1 times [2020-10-20 01:00:03,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:03,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354458510] [2020-10-20 01:00:03,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:03,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354458510] [2020-10-20 01:00:03,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:03,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:00:03,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736725530] [2020-10-20 01:00:03,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:00:03,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:03,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:00:03,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:03,236 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 5 states. [2020-10-20 01:00:03,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:03,465 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-10-20 01:00:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:00:03,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 01:00:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:03,467 INFO L225 Difference]: With dead ends: 121 [2020-10-20 01:00:03,467 INFO L226 Difference]: Without dead ends: 119 [2020-10-20 01:00:03,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:03,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-20 01:00:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2020-10-20 01:00:03,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-20 01:00:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2020-10-20 01:00:03,474 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2020-10-20 01:00:03,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:03,475 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2020-10-20 01:00:03,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:00:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2020-10-20 01:00:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 01:00:03,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:03,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:03,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:00:03,476 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:03,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:03,477 INFO L82 PathProgramCache]: Analyzing trace with hash -2076587483, now seen corresponding path program 1 times [2020-10-20 01:00:03,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:03,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076186899] [2020-10-20 01:00:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:03,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076186899] [2020-10-20 01:00:03,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:03,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:00:03,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183261473] [2020-10-20 01:00:03,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:00:03,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:03,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:00:03,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:03,520 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 5 states. [2020-10-20 01:00:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:03,748 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2020-10-20 01:00:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:00:03,753 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 01:00:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:03,754 INFO L225 Difference]: With dead ends: 101 [2020-10-20 01:00:03,754 INFO L226 Difference]: Without dead ends: 99 [2020-10-20 01:00:03,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-20 01:00:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-20 01:00:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-20 01:00:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-10-20 01:00:03,761 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2020-10-20 01:00:03,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:03,762 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-10-20 01:00:03,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:00:03,762 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-10-20 01:00:03,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 01:00:03,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:03,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:03,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:00:03,764 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:03,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:03,765 INFO L82 PathProgramCache]: Analyzing trace with hash -12678507, now seen corresponding path program 1 times [2020-10-20 01:00:03,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:03,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917099730] [2020-10-20 01:00:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:03,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917099730] [2020-10-20 01:00:03,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:03,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:00:03,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729301591] [2020-10-20 01:00:03,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:00:03,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:03,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:00:03,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:03,816 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2020-10-20 01:00:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:04,078 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2020-10-20 01:00:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:00:04,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-20 01:00:04,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:04,080 INFO L225 Difference]: With dead ends: 120 [2020-10-20 01:00:04,080 INFO L226 Difference]: Without dead ends: 118 [2020-10-20 01:00:04,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-20 01:00:04,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 97. [2020-10-20 01:00:04,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-20 01:00:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2020-10-20 01:00:04,097 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 14 [2020-10-20 01:00:04,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:04,098 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2020-10-20 01:00:04,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:00:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2020-10-20 01:00:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 01:00:04,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:04,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:04,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:00:04,100 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:04,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:04,101 INFO L82 PathProgramCache]: Analyzing trace with hash -14589102, now seen corresponding path program 1 times [2020-10-20 01:00:04,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:04,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715165764] [2020-10-20 01:00:04,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:04,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:04,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715165764] [2020-10-20 01:00:04,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:04,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:00:04,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190132101] [2020-10-20 01:00:04,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:00:04,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:04,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:00:04,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:04,225 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand 6 states. [2020-10-20 01:00:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:04,469 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2020-10-20 01:00:04,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:00:04,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 01:00:04,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:04,471 INFO L225 Difference]: With dead ends: 130 [2020-10-20 01:00:04,471 INFO L226 Difference]: Without dead ends: 128 [2020-10-20 01:00:04,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:00:04,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-20 01:00:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2020-10-20 01:00:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-20 01:00:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-10-20 01:00:04,477 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2020-10-20 01:00:04,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:04,478 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-10-20 01:00:04,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:00:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-10-20 01:00:04,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 01:00:04,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:04,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:04,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:00:04,480 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:04,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:04,480 INFO L82 PathProgramCache]: Analyzing trace with hash 50303638, now seen corresponding path program 1 times [2020-10-20 01:00:04,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:04,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519800155] [2020-10-20 01:00:04,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:04,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519800155] [2020-10-20 01:00:04,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:04,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:00:04,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86521998] [2020-10-20 01:00:04,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:00:04,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:04,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:00:04,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:04,613 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-10-20 01:00:04,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:04,804 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2020-10-20 01:00:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:00:04,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 01:00:04,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:04,806 INFO L225 Difference]: With dead ends: 113 [2020-10-20 01:00:04,807 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 01:00:04,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:00:04,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 01:00:04,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2020-10-20 01:00:04,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-20 01:00:04,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-10-20 01:00:04,812 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2020-10-20 01:00:04,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:04,812 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-10-20 01:00:04,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:00:04,812 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-10-20 01:00:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 01:00:04,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:04,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:04,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:00:04,814 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:04,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:04,814 INFO L82 PathProgramCache]: Analyzing trace with hash -393027571, now seen corresponding path program 1 times [2020-10-20 01:00:04,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:04,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44319507] [2020-10-20 01:00:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:04,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:04,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44319507] [2020-10-20 01:00:04,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:04,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:00:04,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016623611] [2020-10-20 01:00:04,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:00:04,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:04,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:00:04,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:04,919 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 6 states. [2020-10-20 01:00:05,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:05,178 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2020-10-20 01:00:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:00:05,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 01:00:05,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:05,180 INFO L225 Difference]: With dead ends: 131 [2020-10-20 01:00:05,180 INFO L226 Difference]: Without dead ends: 129 [2020-10-20 01:00:05,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:00:05,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-20 01:00:05,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2020-10-20 01:00:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-20 01:00:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-10-20 01:00:05,185 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2020-10-20 01:00:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:05,185 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-10-20 01:00:05,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:00:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-10-20 01:00:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:00:05,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:05,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:05,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:00:05,187 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:05,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:05,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1135035499, now seen corresponding path program 1 times [2020-10-20 01:00:05,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:05,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560318312] [2020-10-20 01:00:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:05,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560318312] [2020-10-20 01:00:05,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:05,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:00:05,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548883759] [2020-10-20 01:00:05,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:00:05,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:05,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:00:05,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:00:05,223 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 4 states. [2020-10-20 01:00:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:05,307 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2020-10-20 01:00:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:00:05,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 01:00:05,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:05,308 INFO L225 Difference]: With dead ends: 107 [2020-10-20 01:00:05,309 INFO L226 Difference]: Without dead ends: 105 [2020-10-20 01:00:05,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-20 01:00:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-10-20 01:00:05,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-20 01:00:05,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-10-20 01:00:05,313 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2020-10-20 01:00:05,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:05,313 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-10-20 01:00:05,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:00:05,314 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-10-20 01:00:05,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:00:05,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:05,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:05,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:00:05,315 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:05,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:05,315 INFO L82 PathProgramCache]: Analyzing trace with hash -826355977, now seen corresponding path program 1 times [2020-10-20 01:00:05,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:05,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345628705] [2020-10-20 01:00:05,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:05,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345628705] [2020-10-20 01:00:05,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:05,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:00:05,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277691742] [2020-10-20 01:00:05,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:00:05,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:05,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:00:05,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:00:05,345 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 4 states. [2020-10-20 01:00:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:05,448 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2020-10-20 01:00:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:00:05,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 01:00:05,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:05,451 INFO L225 Difference]: With dead ends: 105 [2020-10-20 01:00:05,451 INFO L226 Difference]: Without dead ends: 101 [2020-10-20 01:00:05,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:00:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-20 01:00:05,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-10-20 01:00:05,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-20 01:00:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-10-20 01:00:05,455 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2020-10-20 01:00:05,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:05,456 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-10-20 01:00:05,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:00:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-10-20 01:00:05,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:00:05,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:05,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:05,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:00:05,457 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:05,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:05,458 INFO L82 PathProgramCache]: Analyzing trace with hash 171645234, now seen corresponding path program 1 times [2020-10-20 01:00:05,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:05,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279261700] [2020-10-20 01:00:05,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:05,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279261700] [2020-10-20 01:00:05,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:05,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:00:05,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627888997] [2020-10-20 01:00:05,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:00:05,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:05,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:00:05,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:05,547 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2020-10-20 01:00:05,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:05,790 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2020-10-20 01:00:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:00:05,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-20 01:00:05,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:05,793 INFO L225 Difference]: With dead ends: 117 [2020-10-20 01:00:05,793 INFO L226 Difference]: Without dead ends: 115 [2020-10-20 01:00:05,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:00:05,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-20 01:00:05,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 96. [2020-10-20 01:00:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-20 01:00:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-10-20 01:00:05,804 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 18 [2020-10-20 01:00:05,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:05,805 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-10-20 01:00:05,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:00:05,806 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-10-20 01:00:05,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:00:05,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:05,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:05,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:00:05,809 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:05,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:05,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1598213575, now seen corresponding path program 1 times [2020-10-20 01:00:05,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:05,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199635284] [2020-10-20 01:00:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:05,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199635284] [2020-10-20 01:00:05,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:05,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:00:05,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047596784] [2020-10-20 01:00:05,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:00:05,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:05,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:00:05,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:05,892 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-10-20 01:00:06,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:06,095 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2020-10-20 01:00:06,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:00:06,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-20 01:00:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:06,096 INFO L225 Difference]: With dead ends: 109 [2020-10-20 01:00:06,096 INFO L226 Difference]: Without dead ends: 107 [2020-10-20 01:00:06,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:00:06,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-20 01:00:06,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91. [2020-10-20 01:00:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-20 01:00:06,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2020-10-20 01:00:06,100 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 18 [2020-10-20 01:00:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:06,101 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2020-10-20 01:00:06,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:00:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2020-10-20 01:00:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:00:06,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:06,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:00:06,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 01:00:06,102 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:06,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:06,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1663106315, now seen corresponding path program 1 times [2020-10-20 01:00:06,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:06,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393487446] [2020-10-20 01:00:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:06,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393487446] [2020-10-20 01:00:06,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:06,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:00:06,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052496326] [2020-10-20 01:00:06,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:00:06,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:06,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:00:06,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:00:06,157 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 6 states. [2020-10-20 01:00:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:06,369 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2020-10-20 01:00:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:00:06,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-20 01:00:06,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:06,370 INFO L225 Difference]: With dead ends: 91 [2020-10-20 01:00:06,371 INFO L226 Difference]: Without dead ends: 54 [2020-10-20 01:00:06,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:00:06,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-20 01:00:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-20 01:00:06,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-20 01:00:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2020-10-20 01:00:06,373 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2020-10-20 01:00:06,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:06,374 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2020-10-20 01:00:06,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:00:06,374 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2020-10-20 01:00:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-20 01:00:06,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:06,375 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] [2020-10-20 01:00:06,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-20 01:00:06,375 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:06,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1909250009, now seen corresponding path program 1 times [2020-10-20 01:00:06,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:06,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518086460] [2020-10-20 01:00:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:06,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:06,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518086460] [2020-10-20 01:00:06,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:06,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-20 01:00:06,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537347286] [2020-10-20 01:00:06,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 01:00:06,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:06,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 01:00:06,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:00:06,505 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 13 states. [2020-10-20 01:00:06,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:06,639 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2020-10-20 01:00:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:00:06,639 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-10-20 01:00:06,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:06,640 INFO L225 Difference]: With dead ends: 54 [2020-10-20 01:00:06,640 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 01:00:06,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-10-20 01:00:06,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 01:00:06,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-20 01:00:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 01:00:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2020-10-20 01:00:06,643 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2020-10-20 01:00:06,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:06,643 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2020-10-20 01:00:06,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 01:00:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2020-10-20 01:00:06,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-20 01:00:06,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:06,644 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] [2020-10-20 01:00:06,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 01:00:06,645 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:06,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:06,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1909269869, now seen corresponding path program 1 times [2020-10-20 01:00:06,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:06,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113237222] [2020-10-20 01:00:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:06,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113237222] [2020-10-20 01:00:06,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:06,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-20 01:00:06,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083959860] [2020-10-20 01:00:06,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 01:00:06,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:06,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 01:00:06,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:00:06,762 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2020-10-20 01:00:06,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:06,907 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-10-20 01:00:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:00:06,907 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-10-20 01:00:06,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:06,908 INFO L225 Difference]: With dead ends: 59 [2020-10-20 01:00:06,908 INFO L226 Difference]: Without dead ends: 57 [2020-10-20 01:00:06,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2020-10-20 01:00:06,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-20 01:00:06,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-10-20 01:00:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-20 01:00:06,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2020-10-20 01:00:06,911 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2020-10-20 01:00:06,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:06,911 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2020-10-20 01:00:06,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 01:00:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2020-10-20 01:00:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 01:00:06,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:06,912 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] [2020-10-20 01:00:06,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-20 01:00:06,912 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:06,913 INFO L82 PathProgramCache]: Analyzing trace with hash -942785412, now seen corresponding path program 1 times [2020-10-20 01:00:06,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:06,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87222608] [2020-10-20 01:00:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:07,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87222608] [2020-10-20 01:00:07,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:07,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:00:07,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106836508] [2020-10-20 01:00:07,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:00:07,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:07,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:00:07,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:00:07,036 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 7 states. [2020-10-20 01:00:07,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:07,137 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-10-20 01:00:07,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:00:07,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-20 01:00:07,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:07,138 INFO L225 Difference]: With dead ends: 50 [2020-10-20 01:00:07,139 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 01:00:07,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:00:07,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 01:00:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-20 01:00:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 01:00:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-10-20 01:00:07,142 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2020-10-20 01:00:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:07,142 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-10-20 01:00:07,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:00:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-10-20 01:00:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 01:00:07,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:00:07,143 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] [2020-10-20 01:00:07,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-20 01:00:07,143 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:00:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:00:07,144 INFO L82 PathProgramCache]: Analyzing trace with hash -942169732, now seen corresponding path program 1 times [2020-10-20 01:00:07,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:00:07,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711927881] [2020-10-20 01:00:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:00:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:00:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:00:07,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711927881] [2020-10-20 01:00:07,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:00:07,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:00:07,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057560124] [2020-10-20 01:00:07,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:00:07,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:00:07,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:00:07,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:00:07,279 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2020-10-20 01:00:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:00:07,392 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2020-10-20 01:00:07,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:00:07,393 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-20 01:00:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:00:07,393 INFO L225 Difference]: With dead ends: 50 [2020-10-20 01:00:07,393 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:00:07,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:00:07,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:00:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:00:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:00:07,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:00:07,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-10-20 01:00:07,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:00:07,396 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:00:07,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:00:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:00:07,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:00:07,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-20 01:00:07,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-10-20 01:00:07,539 INFO L274 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,540 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,541 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,541 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,541 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,541 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,541 INFO L274 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-10-20 01:00:07,542 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,542 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,542 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,542 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,543 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,543 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,543 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,543 INFO L274 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-10-20 01:00:07,543 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,543 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,544 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,544 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,544 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,544 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,544 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,545 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,545 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,545 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,545 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,545 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,545 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,546 INFO L274 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-10-20 01:00:07,546 INFO L274 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-10-20 01:00:07,546 INFO L274 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-10-20 01:00:07,546 INFO L274 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-10-20 01:00:07,546 INFO L274 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-10-20 01:00:07,546 INFO L274 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-10-20 01:00:07,547 INFO L277 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-10-20 01:00:07,547 INFO L274 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-10-20 01:00:07,547 INFO L274 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-10-20 01:00:07,547 INFO L274 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-10-20 01:00:07,547 INFO L274 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-10-20 01:00:07,548 INFO L270 CegarLoopResult]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-10-20 01:00:07,548 INFO L274 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-10-20 01:00:07,548 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,548 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,548 INFO L274 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-10-20 01:00:07,549 INFO L274 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-10-20 01:00:07,549 INFO L274 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-10-20 01:00:07,549 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,549 INFO L274 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-10-20 01:00:07,549 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,549 INFO L270 CegarLoopResult]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-10-20 01:00:07,550 INFO L274 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-10-20 01:00:07,550 INFO L274 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-10-20 01:00:07,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,550 INFO L274 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-10-20 01:00:07,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,550 INFO L277 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-10-20 01:00:07,551 INFO L274 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-10-20 01:00:07,551 INFO L274 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-10-20 01:00:07,551 INFO L274 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-10-20 01:00:07,551 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,551 INFO L274 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-10-20 01:00:07,551 INFO L270 CegarLoopResult]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-10-20 01:00:07,552 INFO L274 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-10-20 01:00:07,552 INFO L274 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-10-20 01:00:07,552 INFO L274 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-10-20 01:00:07,552 INFO L274 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-10-20 01:00:07,552 INFO L274 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-10-20 01:00:07,552 INFO L274 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-10-20 01:00:07,553 INFO L274 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-10-20 01:00:07,553 INFO L274 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-10-20 01:00:07,553 INFO L274 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-10-20 01:00:07,553 INFO L270 CegarLoopResult]: At program point L282(lines 132 284) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2020-10-20 01:00:07,553 INFO L274 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-10-20 01:00:07,553 INFO L274 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-10-20 01:00:07,554 INFO L274 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-10-20 01:00:07,554 INFO L274 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-10-20 01:00:07,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:00:07,554 INFO L274 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-10-20 01:00:07,554 INFO L274 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-10-20 01:00:07,554 INFO L274 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-10-20 01:00:07,555 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,555 INFO L274 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-10-20 01:00:07,555 INFO L274 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-10-20 01:00:07,555 INFO L274 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-10-20 01:00:07,555 INFO L274 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-10-20 01:00:07,556 INFO L274 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-10-20 01:00:07,556 INFO L274 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-10-20 01:00:07,556 INFO L274 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-10-20 01:00:07,556 INFO L274 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-10-20 01:00:07,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,556 INFO L274 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-10-20 01:00:07,557 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:00:07,557 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,557 INFO L274 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-10-20 01:00:07,557 INFO L274 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-10-20 01:00:07,557 INFO L274 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-10-20 01:00:07,557 INFO L274 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-10-20 01:00:07,558 INFO L274 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-10-20 01:00:07,558 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,558 INFO L274 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-10-20 01:00:07,558 INFO L274 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-10-20 01:00:07,558 INFO L274 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-10-20 01:00:07,559 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:00:07,559 INFO L274 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-10-20 01:00:07,559 INFO L274 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-10-20 01:00:07,559 INFO L274 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-10-20 01:00:07,559 INFO L274 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-10-20 01:00:07,559 INFO L274 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-10-20 01:00:07,560 INFO L274 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-10-20 01:00:07,560 INFO L274 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-10-20 01:00:07,560 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:00:07,560 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,560 INFO L274 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-10-20 01:00:07,561 INFO L274 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-10-20 01:00:07,561 INFO L274 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-10-20 01:00:07,561 INFO L274 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-10-20 01:00:07,561 INFO L274 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-10-20 01:00:07,561 INFO L274 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-10-20 01:00:07,561 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:00:07,562 INFO L274 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-10-20 01:00:07,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:00:07 BoogieIcfgContainer [2020-10-20 01:00:07,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:00:07,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:00:07,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:00:07,592 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:00:07,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:00:01" (3/4) ... [2020-10-20 01:00:07,608 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:00:07,650 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 01:00:07,651 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 01:00:07,653 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:00:07,655 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:00:07,833 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:00:07,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:00:07,836 INFO L168 Benchmark]: Toolchain (without parser) took 7887.42 ms. Allocated memory was 35.1 MB in the beginning and 91.2 MB in the end (delta: 56.1 MB). Free memory was 11.8 MB in the beginning and 53.8 MB in the end (delta: -42.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,836 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.46 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 10.8 MB in the beginning and 19.3 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.04 ms. Allocated memory is still 44.6 MB. Free memory was 19.3 MB in the beginning and 27.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,838 INFO L168 Benchmark]: Boogie Preprocessor took 48.60 ms. Allocated memory is still 44.6 MB. Free memory was 27.0 MB in the beginning and 24.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,838 INFO L168 Benchmark]: RCFGBuilder took 751.84 ms. Allocated memory was 44.6 MB in the beginning and 49.3 MB in the end (delta: 4.7 MB). Free memory was 24.4 MB in the beginning and 24.0 MB in the end (delta: 376.5 kB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,839 INFO L168 Benchmark]: TraceAbstraction took 6190.87 ms. Allocated memory was 49.3 MB in the beginning and 91.2 MB in the end (delta: 41.9 MB). Free memory was 23.7 MB in the beginning and 69.9 MB in the end (delta: -46.2 MB). Peak memory consumption was 54.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,839 INFO L168 Benchmark]: Witness Printer took 242.49 ms. Allocated memory is still 91.2 MB. Free memory was 69.9 MB in the beginning and 53.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:00:07,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 551.46 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 10.8 MB in the beginning and 19.3 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 91.04 ms. Allocated memory is still 44.6 MB. Free memory was 19.3 MB in the beginning and 27.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 48.60 ms. Allocated memory is still 44.6 MB. Free memory was 27.0 MB in the beginning and 24.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 751.84 ms. Allocated memory was 44.6 MB in the beginning and 49.3 MB in the end (delta: 4.7 MB). Free memory was 24.4 MB in the beginning and 24.0 MB in the end (delta: 376.5 kB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 6190.87 ms. Allocated memory was 49.3 MB in the beginning and 91.2 MB in the end (delta: 41.9 MB). Free memory was 23.7 MB in the beginning and 69.9 MB in the end (delta: -46.2 MB). Peak memory consumption was 54.0 MB. Max. memory is 14.3 GB. * Witness Printer took 242.49 ms. Allocated memory is still 91.2 MB. Free memory was 69.9 MB in the beginning and 53.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 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 - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 136 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1038 SDtfs, 1865 SDslu, 1430 SDs, 0 SdLazy, 3491 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 133 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 14 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4287 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 257 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 29885 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 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...