./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_1.5.800.v20200727-1323.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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-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 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 01:26:40,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 01:26:40,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 01:26:40,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 01:26:40,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 01:26:40,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 01:26:40,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 01:26:40,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 01:26:40,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 01:26:40,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 01:26:40,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 01:26:40,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 01:26:40,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 01:26:40,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 01:26:40,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 01:26:40,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 01:26:40,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 01:26:40,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 01:26:40,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 01:26:40,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 01:26:40,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 01:26:40,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 01:26:40,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 01:26:40,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 01:26:40,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 01:26:40,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 01:26:40,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 01:26:40,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 01:26:40,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 01:26:40,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 01:26:40,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 01:26:40,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 01:26:40,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 01:26:40,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 01:26:40,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 01:26:40,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 01:26:40,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 01:26:40,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 01:26:40,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 01:26:40,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 01:26:40,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 01:26:40,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 01:26:40,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 01:26:40,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 01:26:40,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 01:26:40,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 01:26:40,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 01:26:40,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 01:26:40,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 01:26:40,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 01:26:40,819 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 01:26:40,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 01:26:40,820 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 01:26:40,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 01:26:40,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 01:26:40,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 01:26:40,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 01:26:40,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 01:26:40,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 01:26:40,821 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 01:26:40,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 01:26:40,821 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 01:26:40,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 01:26:40,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 01:26:40,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 01:26:40,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 01:26:40,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:26:40,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 01:26:40,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 01:26:40,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 01:26:40,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 01:26:40,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 01:26:40,823 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 01:26:40,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 01:26:40,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 01:26:40,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b [2021-12-28 01:26:41,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 01:26:41,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 01:26:41,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 01:26:41,123 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 01:26:41,123 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 01:26:41,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2021-12-28 01:26:41,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4cc3286c/99e13bc048374b78946864e58c5fda7c/FLAGf7f3feeb3 [2021-12-28 01:26:41,627 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 01:26:41,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2021-12-28 01:26:41,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4cc3286c/99e13bc048374b78946864e58c5fda7c/FLAGf7f3feeb3 [2021-12-28 01:26:41,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4cc3286c/99e13bc048374b78946864e58c5fda7c [2021-12-28 01:26:41,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 01:26:41,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 01:26:41,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 01:26:41,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 01:26:41,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 01:26:41,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:26:41" (1/1) ... [2021-12-28 01:26:41,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a82188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:41, skipping insertion in model container [2021-12-28 01:26:41,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:26:41" (1/1) ... [2021-12-28 01:26:41,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 01:26:41,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 01:26:41,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2021-12-28 01:26:41,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:26:41,995 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 01:26:42,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2021-12-28 01:26:42,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:26:42,089 INFO L208 MainTranslator]: Completed translation [2021-12-28 01:26:42,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42 WrapperNode [2021-12-28 01:26:42,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 01:26:42,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 01:26:42,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 01:26:42,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 01:26:42,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,146 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 779 [2021-12-28 01:26:42,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 01:26:42,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 01:26:42,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 01:26:42,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 01:26:42,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 01:26:42,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 01:26:42,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 01:26:42,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 01:26:42,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (1/1) ... [2021-12-28 01:26:42,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:26:42,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 01:26:42,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 01:26:42,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 01:26:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 01:26:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 01:26:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 01:26:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 01:26:42,319 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 01:26:42,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 01:26:42,799 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 01:26:42,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 01:26:42,809 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 01:26:42,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:26:42 BoogieIcfgContainer [2021-12-28 01:26:42,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 01:26:42,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 01:26:42,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 01:26:42,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 01:26:42,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 01:26:41" (1/3) ... [2021-12-28 01:26:42,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce5958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:26:42, skipping insertion in model container [2021-12-28 01:26:42,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:26:42" (2/3) ... [2021-12-28 01:26:42,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce5958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:26:42, skipping insertion in model container [2021-12-28 01:26:42,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:26:42" (3/3) ... [2021-12-28 01:26:42,817 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2021-12-28 01:26:42,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 01:26:42,824 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 01:26:42,864 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 01:26:42,870 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 01:26:42,870 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 01:26:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 205 states have (on average 1.721951219512195) internal successors, (353), 206 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-28 01:26:42,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:42,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:42,897 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:42,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:42,902 INFO L85 PathProgramCache]: Analyzing trace with hash -374161539, now seen corresponding path program 1 times [2021-12-28 01:26:42,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:42,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947232804] [2021-12-28 01:26:42,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:42,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:43,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:43,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:43,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947232804] [2021-12-28 01:26:43,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947232804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:43,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:43,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 01:26:43,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966457312] [2021-12-28 01:26:43,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:43,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 01:26:43,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 01:26:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:43,261 INFO L87 Difference]: Start difference. First operand has 207 states, 205 states have (on average 1.721951219512195) internal successors, (353), 206 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:43,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:43,463 INFO L93 Difference]: Finished difference Result 829 states and 1341 transitions. [2021-12-28 01:26:43,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 01:26:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-12-28 01:26:43,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:43,476 INFO L225 Difference]: With dead ends: 829 [2021-12-28 01:26:43,477 INFO L226 Difference]: Without dead ends: 714 [2021-12-28 01:26:43,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-28 01:26:43,492 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 2307 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:43,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2307 Valid, 2437 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:26:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-12-28 01:26:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 315. [2021-12-28 01:26:43,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.4968152866242037) internal successors, (470), 314 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 470 transitions. [2021-12-28 01:26:43,549 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 470 transitions. Word has length 80 [2021-12-28 01:26:43,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:43,549 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 470 transitions. [2021-12-28 01:26:43,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:43,550 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 470 transitions. [2021-12-28 01:26:43,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-28 01:26:43,552 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:43,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:43,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 01:26:43,552 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:43,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1024475534, now seen corresponding path program 1 times [2021-12-28 01:26:43,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:43,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413883816] [2021-12-28 01:26:43,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:43,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:43,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:43,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413883816] [2021-12-28 01:26:43,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413883816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:43,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:43,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 01:26:43,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356276259] [2021-12-28 01:26:43,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:43,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 01:26:43,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:43,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 01:26:43,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:43,690 INFO L87 Difference]: Start difference. First operand 315 states and 470 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:43,933 INFO L93 Difference]: Finished difference Result 1371 states and 2113 transitions. [2021-12-28 01:26:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 01:26:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-28 01:26:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:43,938 INFO L225 Difference]: With dead ends: 1371 [2021-12-28 01:26:43,938 INFO L226 Difference]: Without dead ends: 1133 [2021-12-28 01:26:43,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:43,940 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1112 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:43,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 1479 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:26:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2021-12-28 01:26:44,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1125. [2021-12-28 01:26:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 1.5364768683274022) internal successors, (1727), 1124 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:44,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1727 transitions. [2021-12-28 01:26:44,022 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1727 transitions. Word has length 81 [2021-12-28 01:26:44,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:44,022 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 1727 transitions. [2021-12-28 01:26:44,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:44,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1727 transitions. [2021-12-28 01:26:44,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-28 01:26:44,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:44,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:44,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 01:26:44,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:44,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:44,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1872628209, now seen corresponding path program 1 times [2021-12-28 01:26:44,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:44,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501725173] [2021-12-28 01:26:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:44,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:44,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:44,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501725173] [2021-12-28 01:26:44,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501725173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:44,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:44,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:26:44,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560599052] [2021-12-28 01:26:44,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:44,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:26:44,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:26:44,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:26:44,083 INFO L87 Difference]: Start difference. First operand 1125 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:44,426 INFO L93 Difference]: Finished difference Result 3049 states and 4737 transitions. [2021-12-28 01:26:44,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:26:44,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-28 01:26:44,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:44,434 INFO L225 Difference]: With dead ends: 3049 [2021-12-28 01:26:44,434 INFO L226 Difference]: Without dead ends: 1979 [2021-12-28 01:26:44,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:44,440 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1140 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:44,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 281 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:26:44,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2021-12-28 01:26:44,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1977. [2021-12-28 01:26:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1977 states, 1976 states have (on average 1.5455465587044535) internal successors, (3054), 1976 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 3054 transitions. [2021-12-28 01:26:44,584 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 3054 transitions. Word has length 82 [2021-12-28 01:26:44,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:44,584 INFO L470 AbstractCegarLoop]: Abstraction has 1977 states and 3054 transitions. [2021-12-28 01:26:44,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:44,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 3054 transitions. [2021-12-28 01:26:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-28 01:26:44,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:44,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:44,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 01:26:44,587 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:44,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:44,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1410777150, now seen corresponding path program 1 times [2021-12-28 01:26:44,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:44,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005975449] [2021-12-28 01:26:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:44,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:44,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:44,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005975449] [2021-12-28 01:26:44,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005975449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:44,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:44,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:26:44,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850036126] [2021-12-28 01:26:44,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:44,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:26:44,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:44,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:26:44,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:26:44,678 INFO L87 Difference]: Start difference. First operand 1977 states and 3054 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:45,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:45,091 INFO L93 Difference]: Finished difference Result 5484 states and 8533 transitions. [2021-12-28 01:26:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:26:45,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-28 01:26:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:45,103 INFO L225 Difference]: With dead ends: 5484 [2021-12-28 01:26:45,103 INFO L226 Difference]: Without dead ends: 3585 [2021-12-28 01:26:45,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:45,113 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 1098 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:45,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 285 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:26:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2021-12-28 01:26:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3583. [2021-12-28 01:26:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3582 states have (on average 1.5466219988833054) internal successors, (5540), 3582 states have internal predecessors, (5540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:45,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 5540 transitions. [2021-12-28 01:26:45,407 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 5540 transitions. Word has length 82 [2021-12-28 01:26:45,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:45,407 INFO L470 AbstractCegarLoop]: Abstraction has 3583 states and 5540 transitions. [2021-12-28 01:26:45,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:45,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 5540 transitions. [2021-12-28 01:26:45,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-28 01:26:45,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:45,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:45,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 01:26:45,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:45,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1933266084, now seen corresponding path program 1 times [2021-12-28 01:26:45,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:45,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151626857] [2021-12-28 01:26:45,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:45,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:45,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:45,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151626857] [2021-12-28 01:26:45,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151626857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:45,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:45,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:26:45,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143470440] [2021-12-28 01:26:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:45,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:26:45,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:45,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:26:45,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:26:45,505 INFO L87 Difference]: Start difference. First operand 3583 states and 5540 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:46,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:46,078 INFO L93 Difference]: Finished difference Result 10066 states and 15649 transitions. [2021-12-28 01:26:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:26:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-28 01:26:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:46,100 INFO L225 Difference]: With dead ends: 10066 [2021-12-28 01:26:46,101 INFO L226 Difference]: Without dead ends: 6625 [2021-12-28 01:26:46,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:46,106 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 1054 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:46,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 296 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:26:46,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2021-12-28 01:26:46,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6623. [2021-12-28 01:26:46,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 6622 states have (on average 1.5468136514648143) internal successors, (10243), 6622 states have internal predecessors, (10243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:46,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 10243 transitions. [2021-12-28 01:26:46,585 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 10243 transitions. Word has length 82 [2021-12-28 01:26:46,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:46,586 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 10243 transitions. [2021-12-28 01:26:46,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 10243 transitions. [2021-12-28 01:26:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-28 01:26:46,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:46,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:46,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 01:26:46,589 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:46,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1259416403, now seen corresponding path program 1 times [2021-12-28 01:26:46,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:46,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797465745] [2021-12-28 01:26:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:46,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:46,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:46,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797465745] [2021-12-28 01:26:46,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797465745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:46,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:46,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:26:46,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89841907] [2021-12-28 01:26:46,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:46,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:26:46,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:46,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:26:46,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:26:46,630 INFO L87 Difference]: Start difference. First operand 6623 states and 10243 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:47,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:47,661 INFO L93 Difference]: Finished difference Result 19244 states and 29834 transitions. [2021-12-28 01:26:47,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:26:47,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-12-28 01:26:47,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:47,703 INFO L225 Difference]: With dead ends: 19244 [2021-12-28 01:26:47,703 INFO L226 Difference]: Without dead ends: 12729 [2021-12-28 01:26:47,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:47,715 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 1054 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:47,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 287 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:26:47,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12729 states. [2021-12-28 01:26:48,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12729 to 12727. [2021-12-28 01:26:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12727 states, 12726 states have (on average 1.541882759704542) internal successors, (19622), 12726 states have internal predecessors, (19622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12727 states to 12727 states and 19622 transitions. [2021-12-28 01:26:48,635 INFO L78 Accepts]: Start accepts. Automaton has 12727 states and 19622 transitions. Word has length 82 [2021-12-28 01:26:48,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:48,635 INFO L470 AbstractCegarLoop]: Abstraction has 12727 states and 19622 transitions. [2021-12-28 01:26:48,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 12727 states and 19622 transitions. [2021-12-28 01:26:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-28 01:26:48,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:48,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:48,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 01:26:48,639 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash -407485162, now seen corresponding path program 1 times [2021-12-28 01:26:48,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:48,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671332490] [2021-12-28 01:26:48,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:48,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:48,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:48,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671332490] [2021-12-28 01:26:48,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671332490] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:48,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:48,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:26:48,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501152166] [2021-12-28 01:26:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:48,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:26:48,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:48,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:26:48,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:26:48,678 INFO L87 Difference]: Start difference. First operand 12727 states and 19622 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:50,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:50,595 INFO L93 Difference]: Finished difference Result 35617 states and 54998 transitions. [2021-12-28 01:26:50,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:26:50,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-28 01:26:50,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:50,640 INFO L225 Difference]: With dead ends: 35617 [2021-12-28 01:26:50,640 INFO L226 Difference]: Without dead ends: 22954 [2021-12-28 01:26:50,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:26:50,657 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1151 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:50,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 286 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:26:50,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22954 states. [2021-12-28 01:26:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22954 to 22952. [2021-12-28 01:26:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22952 states, 22951 states have (on average 1.537449348612261) internal successors, (35286), 22951 states have internal predecessors, (35286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:52,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22952 states to 22952 states and 35286 transitions. [2021-12-28 01:26:52,113 INFO L78 Accepts]: Start accepts. Automaton has 22952 states and 35286 transitions. Word has length 83 [2021-12-28 01:26:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:52,113 INFO L470 AbstractCegarLoop]: Abstraction has 22952 states and 35286 transitions. [2021-12-28 01:26:52,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 22952 states and 35286 transitions. [2021-12-28 01:26:52,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-28 01:26:52,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:52,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:52,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 01:26:52,119 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash 174469786, now seen corresponding path program 1 times [2021-12-28 01:26:52,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:52,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091832821] [2021-12-28 01:26:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:52,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:52,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:52,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091832821] [2021-12-28 01:26:52,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091832821] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:52,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:52,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 01:26:52,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562916096] [2021-12-28 01:26:52,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:52,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:26:52,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:52,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:26:52,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:26:52,182 INFO L87 Difference]: Start difference. First operand 22952 states and 35286 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:55,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:26:55,377 INFO L93 Difference]: Finished difference Result 45674 states and 69975 transitions. [2021-12-28 01:26:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 01:26:55,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-12-28 01:26:55,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:26:55,476 INFO L225 Difference]: With dead ends: 45674 [2021-12-28 01:26:55,476 INFO L226 Difference]: Without dead ends: 45672 [2021-12-28 01:26:55,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:26:55,491 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 286 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:26:55,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1181 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:26:55,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45672 states. [2021-12-28 01:26:57,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45672 to 23528. [2021-12-28 01:26:57,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23528 states, 23527 states have (on average 1.524291239852085) internal successors, (35862), 23527 states have internal predecessors, (35862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23528 states to 23528 states and 35862 transitions. [2021-12-28 01:26:57,600 INFO L78 Accepts]: Start accepts. Automaton has 23528 states and 35862 transitions. Word has length 83 [2021-12-28 01:26:57,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:26:57,601 INFO L470 AbstractCegarLoop]: Abstraction has 23528 states and 35862 transitions. [2021-12-28 01:26:57,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:26:57,601 INFO L276 IsEmpty]: Start isEmpty. Operand 23528 states and 35862 transitions. [2021-12-28 01:26:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 01:26:57,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:26:57,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:26:57,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 01:26:57,613 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:26:57,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:26:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1373936999, now seen corresponding path program 1 times [2021-12-28 01:26:57,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:26:57,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063692296] [2021-12-28 01:26:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:26:57,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:26:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:26:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:26:57,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:26:57,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063692296] [2021-12-28 01:26:57,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063692296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:26:57,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:26:57,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:26:57,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16634573] [2021-12-28 01:26:57,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:26:57,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 01:26:57,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:26:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 01:26:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 01:26:57,698 INFO L87 Difference]: Start difference. First operand 23528 states and 35862 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:27:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:27:00,929 INFO L93 Difference]: Finished difference Result 65932 states and 100224 transitions. [2021-12-28 01:27:00,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 01:27:00,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-12-28 01:27:00,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:27:01,012 INFO L225 Difference]: With dead ends: 65932 [2021-12-28 01:27:01,013 INFO L226 Difference]: Without dead ends: 43210 [2021-12-28 01:27:01,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 01:27:01,047 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 250 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:27:01,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 611 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:27:01,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43210 states. [2021-12-28 01:27:04,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43210 to 43208. [2021-12-28 01:27:04,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43208 states, 43207 states have (on average 1.5104496956511677) internal successors, (65262), 43207 states have internal predecessors, (65262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:27:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43208 states to 43208 states and 65262 transitions. [2021-12-28 01:27:04,685 INFO L78 Accepts]: Start accepts. Automaton has 43208 states and 65262 transitions. Word has length 84 [2021-12-28 01:27:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:27:04,685 INFO L470 AbstractCegarLoop]: Abstraction has 43208 states and 65262 transitions. [2021-12-28 01:27:04,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:27:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 43208 states and 65262 transitions. [2021-12-28 01:27:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-28 01:27:04,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:27:04,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:27:04,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 01:27:04,692 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:27:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:27:04,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1979820424, now seen corresponding path program 1 times [2021-12-28 01:27:04,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:27:04,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509359266] [2021-12-28 01:27:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:27:04,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:27:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:27:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:27:04,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:27:04,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509359266] [2021-12-28 01:27:04,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509359266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:27:04,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:27:04,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 01:27:04,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317247510] [2021-12-28 01:27:04,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:27:04,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 01:27:04,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:27:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 01:27:04,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:27:04,724 INFO L87 Difference]: Start difference. First operand 43208 states and 65262 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:27:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:27:09,318 INFO L93 Difference]: Finished difference Result 99075 states and 149695 transitions. [2021-12-28 01:27:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 01:27:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-12-28 01:27:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:27:09,413 INFO L225 Difference]: With dead ends: 99075 [2021-12-28 01:27:09,413 INFO L226 Difference]: Without dead ends: 60625 [2021-12-28 01:27:09,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:27:09,455 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 200 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:27:09,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 552 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:27:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60625 states. [2021-12-28 01:27:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60625 to 43038. [2021-12-28 01:27:13,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43038 states, 43037 states have (on average 1.4981527522829194) internal successors, (64476), 43037 states have internal predecessors, (64476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:27:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43038 states to 43038 states and 64476 transitions. [2021-12-28 01:27:13,729 INFO L78 Accepts]: Start accepts. Automaton has 43038 states and 64476 transitions. Word has length 85 [2021-12-28 01:27:13,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:27:13,729 INFO L470 AbstractCegarLoop]: Abstraction has 43038 states and 64476 transitions. [2021-12-28 01:27:13,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:27:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 43038 states and 64476 transitions. [2021-12-28 01:27:13,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-28 01:27:13,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:27:13,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 01:27:13,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 01:27:13,735 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 01:27:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:27:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1374524072, now seen corresponding path program 1 times [2021-12-28 01:27:13,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:27:13,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625088121] [2021-12-28 01:27:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:27:13,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:27:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:27:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:27:13,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:27:13,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625088121] [2021-12-28 01:27:13,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625088121] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:27:13,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:27:13,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 01:27:13,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616950336] [2021-12-28 01:27:13,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:27:13,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 01:27:13,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:27:13,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 01:27:13,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:27:13,763 INFO L87 Difference]: Start difference. First operand 43038 states and 64476 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:27:18,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:27:18,386 INFO L93 Difference]: Finished difference Result 84823 states and 126979 transitions. [2021-12-28 01:27:18,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 01:27:18,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-12-28 01:27:18,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:27:18,477 INFO L225 Difference]: With dead ends: 84823 [2021-12-28 01:27:18,477 INFO L226 Difference]: Without dead ends: 55043 [2021-12-28 01:27:18,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:27:18,508 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 183 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:27:18,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 537 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:27:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55043 states.