./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/eca-rers2012/Problem03_label54.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 83b9baf9f6deb0db64cb6e97ea77e31e0e6aa56bc46a9ba9c0c02a0377225524 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 03:33:53,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 03:33:53,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 03:33:53,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 03:33:53,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 03:33:53,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 03:33:53,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 03:33:53,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 03:33:53,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 03:33:53,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 03:33:53,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 03:33:53,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 03:33:53,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 03:33:53,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 03:33:53,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 03:33:53,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 03:33:53,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 03:33:53,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 03:33:53,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 03:33:53,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 03:33:53,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 03:33:53,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 03:33:53,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 03:33:53,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 03:33:53,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 03:33:53,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 03:33:53,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 03:33:53,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 03:33:53,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 03:33:53,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 03:33:53,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 03:33:53,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 03:33:53,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 03:33:53,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 03:33:53,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 03:33:53,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 03:33:53,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 03:33:53,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 03:33:53,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 03:33:53,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 03:33:53,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 03:33:53,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 03:33:53,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 03:33:53,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 03:33:53,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 03:33:53,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 03:33:53,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 03:33:53,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 03:33:53,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 03:33:53,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 03:33:53,849 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 03:33:53,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 03:33:53,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 03:33:53,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 03:33:53,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 03:33:53,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 03:33:53,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 03:33:53,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 03:33:53,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 03:33:53,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 03:33:53,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 03:33:53,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 03:33:53,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 03:33:53,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 03:33:53,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 03:33:53,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 03:33:53,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:33:53,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 03:33:53,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 03:33:53,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 03:33:53,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 03:33:53,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 03:33:53,853 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 03:33:53,853 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 03:33:53,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 03:33:53,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 03:33:53,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83b9baf9f6deb0db64cb6e97ea77e31e0e6aa56bc46a9ba9c0c02a0377225524 [2021-12-17 03:33:54,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 03:33:54,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 03:33:54,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 03:33:54,097 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 03:33:54,098 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 03:33:54,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label54.c [2021-12-17 03:33:54,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9957d18f0/f4191cdc68474ac8af3e6aa79fc755f5/FLAG69aaee51d [2021-12-17 03:33:54,678 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 03:33:54,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label54.c [2021-12-17 03:33:54,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9957d18f0/f4191cdc68474ac8af3e6aa79fc755f5/FLAG69aaee51d [2021-12-17 03:33:54,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9957d18f0/f4191cdc68474ac8af3e6aa79fc755f5 [2021-12-17 03:33:54,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 03:33:54,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 03:33:54,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 03:33:54,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 03:33:54,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 03:33:54,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:33:54" (1/1) ... [2021-12-17 03:33:54,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30aa6503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:54, skipping insertion in model container [2021-12-17 03:33:54,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:33:54" (1/1) ... [2021-12-17 03:33:54,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 03:33:55,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:33:55,468 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/eca-rers2012/Problem03_label54.c[56627,56640] [2021-12-17 03:33:55,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:33:55,500 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 03:33:55,655 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/eca-rers2012/Problem03_label54.c[56627,56640] [2021-12-17 03:33:55,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:33:55,678 INFO L208 MainTranslator]: Completed translation [2021-12-17 03:33:55,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55 WrapperNode [2021-12-17 03:33:55,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 03:33:55,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 03:33:55,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 03:33:55,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 03:33:55,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,774 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2021-12-17 03:33:55,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 03:33:55,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 03:33:55,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 03:33:55,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 03:33:55,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 03:33:55,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 03:33:55,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 03:33:55,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 03:33:55,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (1/1) ... [2021-12-17 03:33:55,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:33:55,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:33:55,885 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) [2021-12-17 03:33:55,904 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 [2021-12-17 03:33:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 03:33:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 03:33:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 03:33:55,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 03:33:55,969 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 03:33:55,970 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 03:33:57,212 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 03:33:57,232 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 03:33:57,233 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 03:33:57,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:33:57 BoogieIcfgContainer [2021-12-17 03:33:57,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 03:33:57,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 03:33:57,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 03:33:57,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 03:33:57,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:33:54" (1/3) ... [2021-12-17 03:33:57,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0f6b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:33:57, skipping insertion in model container [2021-12-17 03:33:57,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:33:55" (2/3) ... [2021-12-17 03:33:57,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0f6b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:33:57, skipping insertion in model container [2021-12-17 03:33:57,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:33:57" (3/3) ... [2021-12-17 03:33:57,242 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label54.c [2021-12-17 03:33:57,245 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 03:33:57,245 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 03:33:57,281 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 03:33:57,287 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 [2021-12-17 03:33:57,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 03:33:57,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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) [2021-12-17 03:33:57,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-17 03:33:57,320 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:33:57,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:33:57,322 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:33:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:33:57,326 INFO L85 PathProgramCache]: Analyzing trace with hash -590757190, now seen corresponding path program 1 times [2021-12-17 03:33:57,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:33:57,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16720601] [2021-12-17 03:33:57,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:33:57,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:33:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:33:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:33:57,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:33:57,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16720601] [2021-12-17 03:33:57,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16720601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:33:57,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:33:57,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:33:57,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636750196] [2021-12-17 03:33:57,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:33:57,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:33:57,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:33:57,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:33:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:33:57,869 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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) [2021-12-17 03:33:58,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:33:58,811 INFO L93 Difference]: Finished difference Result 829 states and 1478 transitions. [2021-12-17 03:33:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:33:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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 166 [2021-12-17 03:33:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:33:58,829 INFO L225 Difference]: With dead ends: 829 [2021-12-17 03:33:58,843 INFO L226 Difference]: Without dead ends: 463 [2021-12-17 03:33:58,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:33:58,852 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 125 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 03:33:58,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 127 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 03:33:58,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-12-17 03:33:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 449. [2021-12-17 03:33:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.6183035714285714) internal successors, (725), 448 states have internal predecessors, (725), 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) [2021-12-17 03:33:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 725 transitions. [2021-12-17 03:33:58,915 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 725 transitions. Word has length 166 [2021-12-17 03:33:58,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:33:58,918 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 725 transitions. [2021-12-17 03:33:58,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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) [2021-12-17 03:33:58,918 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 725 transitions. [2021-12-17 03:33:58,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-17 03:33:58,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:33:58,926 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:33:58,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 03:33:58,927 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:33:58,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:33:58,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1027354506, now seen corresponding path program 1 times [2021-12-17 03:33:58,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:33:58,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483802442] [2021-12-17 03:33:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:33:58,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:33:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:33:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:33:59,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:33:59,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483802442] [2021-12-17 03:33:59,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483802442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:33:59,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:33:59,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:33:59,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479627431] [2021-12-17 03:33:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:33:59,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:33:59,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:33:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:33:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:33:59,055 INFO L87 Difference]: Start difference. First operand 449 states and 725 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 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) [2021-12-17 03:33:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:33:59,668 INFO L93 Difference]: Finished difference Result 1323 states and 2147 transitions. [2021-12-17 03:33:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:33:59,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 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 171 [2021-12-17 03:33:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:33:59,672 INFO L225 Difference]: With dead ends: 1323 [2021-12-17 03:33:59,672 INFO L226 Difference]: Without dead ends: 876 [2021-12-17 03:33:59,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:33:59,674 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 267 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 03:33:59,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 132 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 03:33:59,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-12-17 03:33:59,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 868. [2021-12-17 03:33:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.5340253748558246) internal successors, (1330), 867 states have internal predecessors, (1330), 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) [2021-12-17 03:33:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1330 transitions. [2021-12-17 03:33:59,696 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1330 transitions. Word has length 171 [2021-12-17 03:33:59,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:33:59,697 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 1330 transitions. [2021-12-17 03:33:59,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 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) [2021-12-17 03:33:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1330 transitions. [2021-12-17 03:33:59,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-17 03:33:59,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:33:59,699 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:33:59,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 03:33:59,700 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:33:59,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:33:59,700 INFO L85 PathProgramCache]: Analyzing trace with hash 560447781, now seen corresponding path program 1 times [2021-12-17 03:33:59,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:33:59,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766334902] [2021-12-17 03:33:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:33:59,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:33:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:33:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:33:59,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:33:59,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766334902] [2021-12-17 03:33:59,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766334902] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:33:59,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010583309] [2021-12-17 03:33:59,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:33:59,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:33:59,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:33:59,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:33:59,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 03:33:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:33:59,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:33:59,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:34:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 03:34:00,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:34:00,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010583309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:00,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:34:00,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-17 03:34:00,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453281447] [2021-12-17 03:34:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:00,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:00,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:00,272 INFO L87 Difference]: Start difference. First operand 868 states and 1330 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 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) [2021-12-17 03:34:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:00,833 INFO L93 Difference]: Finished difference Result 2568 states and 3941 transitions. [2021-12-17 03:34:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:00,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 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 173 [2021-12-17 03:34:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:00,840 INFO L225 Difference]: With dead ends: 2568 [2021-12-17 03:34:00,840 INFO L226 Difference]: Without dead ends: 1702 [2021-12-17 03:34:00,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:00,842 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 88 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:00,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 150 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:34:00,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2021-12-17 03:34:00,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1700. [2021-12-17 03:34:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1699 states have (on average 1.4484991171277222) internal successors, (2461), 1699 states have internal predecessors, (2461), 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) [2021-12-17 03:34:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2461 transitions. [2021-12-17 03:34:00,885 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2461 transitions. Word has length 173 [2021-12-17 03:34:00,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:00,886 INFO L470 AbstractCegarLoop]: Abstraction has 1700 states and 2461 transitions. [2021-12-17 03:34:00,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 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) [2021-12-17 03:34:00,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2461 transitions. [2021-12-17 03:34:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-17 03:34:00,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:00,890 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:00,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 03:34:01,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:01,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:01,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2004202496, now seen corresponding path program 1 times [2021-12-17 03:34:01,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:01,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512288752] [2021-12-17 03:34:01,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:01,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-17 03:34:01,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:01,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512288752] [2021-12-17 03:34:01,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512288752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:01,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:01,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:34:01,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071692467] [2021-12-17 03:34:01,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:01,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:01,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:01,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:01,182 INFO L87 Difference]: Start difference. First operand 1700 states and 2461 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2021-12-17 03:34:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:01,394 INFO L93 Difference]: Finished difference Result 5064 states and 7338 transitions. [2021-12-17 03:34:01,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:01,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 186 [2021-12-17 03:34:01,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:01,408 INFO L225 Difference]: With dead ends: 5064 [2021-12-17 03:34:01,408 INFO L226 Difference]: Without dead ends: 3366 [2021-12-17 03:34:01,411 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 [2021-12-17 03:34:01,419 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 361 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:01,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 585 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 03:34:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2021-12-17 03:34:01,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3360. [2021-12-17 03:34:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3359 states have (on average 1.449240845489729) internal successors, (4868), 3359 states have internal predecessors, (4868), 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) [2021-12-17 03:34:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4868 transitions. [2021-12-17 03:34:01,490 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4868 transitions. Word has length 186 [2021-12-17 03:34:01,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:01,491 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 4868 transitions. [2021-12-17 03:34:01,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2021-12-17 03:34:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4868 transitions. [2021-12-17 03:34:01,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-17 03:34:01,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:01,497 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:01,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 03:34:01,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:01,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:01,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1286471653, now seen corresponding path program 1 times [2021-12-17 03:34:01,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:01,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232154919] [2021-12-17 03:34:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:01,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:34:01,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:01,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232154919] [2021-12-17 03:34:01,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232154919] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:34:01,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740383499] [2021-12-17 03:34:01,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:01,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:01,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:34:01,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:34:01,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 03:34:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:01,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:34:01,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:34:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 03:34:01,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:34:01,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740383499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:01,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:34:01,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 03:34:01,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630804382] [2021-12-17 03:34:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:01,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:01,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:01,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:01,916 INFO L87 Difference]: Start difference. First operand 3360 states and 4868 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2021-12-17 03:34:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:02,422 INFO L93 Difference]: Finished difference Result 9972 states and 14457 transitions. [2021-12-17 03:34:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:02,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 188 [2021-12-17 03:34:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:02,444 INFO L225 Difference]: With dead ends: 9972 [2021-12-17 03:34:02,444 INFO L226 Difference]: Without dead ends: 6614 [2021-12-17 03:34:02,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:02,451 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 231 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:02,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 413 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 03:34:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6614 states. [2021-12-17 03:34:02,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6614 to 6611. [2021-12-17 03:34:02,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6610 states have (on average 1.293948562783661) internal successors, (8553), 6610 states have internal predecessors, (8553), 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) [2021-12-17 03:34:02,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 8553 transitions. [2021-12-17 03:34:02,600 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 8553 transitions. Word has length 188 [2021-12-17 03:34:02,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:02,600 INFO L470 AbstractCegarLoop]: Abstraction has 6611 states and 8553 transitions. [2021-12-17 03:34:02,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2021-12-17 03:34:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 8553 transitions. [2021-12-17 03:34:02,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-17 03:34:02,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:02,607 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:02,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-17 03:34:02,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:02,821 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:02,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:02,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1182972067, now seen corresponding path program 1 times [2021-12-17 03:34:02,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:02,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762414324] [2021-12-17 03:34:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:02,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:34:02,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:02,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762414324] [2021-12-17 03:34:02,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762414324] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:02,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:02,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:34:02,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868074088] [2021-12-17 03:34:02,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:02,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:02,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:02,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:02,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:02,878 INFO L87 Difference]: Start difference. First operand 6611 states and 8553 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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) [2021-12-17 03:34:03,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:03,548 INFO L93 Difference]: Finished difference Result 19371 states and 25142 transitions. [2021-12-17 03:34:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:03,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 189 [2021-12-17 03:34:03,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:03,596 INFO L225 Difference]: With dead ends: 19371 [2021-12-17 03:34:03,597 INFO L226 Difference]: Without dead ends: 12762 [2021-12-17 03:34:03,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:03,607 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 259 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:03,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 143 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 03:34:03,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12762 states. [2021-12-17 03:34:03,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12762 to 12745. [2021-12-17 03:34:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12745 states, 12744 states have (on average 1.290332705586943) internal successors, (16444), 12744 states have internal predecessors, (16444), 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) [2021-12-17 03:34:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12745 states to 12745 states and 16444 transitions. [2021-12-17 03:34:03,902 INFO L78 Accepts]: Start accepts. Automaton has 12745 states and 16444 transitions. Word has length 189 [2021-12-17 03:34:03,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:03,903 INFO L470 AbstractCegarLoop]: Abstraction has 12745 states and 16444 transitions. [2021-12-17 03:34:03,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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) [2021-12-17 03:34:03,904 INFO L276 IsEmpty]: Start isEmpty. Operand 12745 states and 16444 transitions. [2021-12-17 03:34:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-17 03:34:03,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:03,919 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:03,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 03:34:03,920 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:03,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:03,920 INFO L85 PathProgramCache]: Analyzing trace with hash -50841403, now seen corresponding path program 1 times [2021-12-17 03:34:03,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:03,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164122729] [2021-12-17 03:34:03,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:03,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:34:03,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:03,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164122729] [2021-12-17 03:34:03,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164122729] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:03,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:03,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:34:03,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707996887] [2021-12-17 03:34:03,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:03,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:03,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:03,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:03,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:03,973 INFO L87 Difference]: Start difference. First operand 12745 states and 16444 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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) [2021-12-17 03:34:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:04,621 INFO L93 Difference]: Finished difference Result 31642 states and 41351 transitions. [2021-12-17 03:34:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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 192 [2021-12-17 03:34:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:04,658 INFO L225 Difference]: With dead ends: 31642 [2021-12-17 03:34:04,659 INFO L226 Difference]: Without dead ends: 18899 [2021-12-17 03:34:04,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:04,675 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 217 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:04,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 181 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:34:04,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18899 states. [2021-12-17 03:34:04,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18899 to 17016. [2021-12-17 03:34:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17016 states, 17015 states have (on average 1.334469585659712) internal successors, (22706), 17015 states have internal predecessors, (22706), 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) [2021-12-17 03:34:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17016 states to 17016 states and 22706 transitions. [2021-12-17 03:34:04,991 INFO L78 Accepts]: Start accepts. Automaton has 17016 states and 22706 transitions. Word has length 192 [2021-12-17 03:34:04,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:04,991 INFO L470 AbstractCegarLoop]: Abstraction has 17016 states and 22706 transitions. [2021-12-17 03:34:04,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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) [2021-12-17 03:34:04,992 INFO L276 IsEmpty]: Start isEmpty. Operand 17016 states and 22706 transitions. [2021-12-17 03:34:05,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-17 03:34:05,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:05,008 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:05,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 03:34:05,008 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:05,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:05,009 INFO L85 PathProgramCache]: Analyzing trace with hash 564713384, now seen corresponding path program 1 times [2021-12-17 03:34:05,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:05,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897792611] [2021-12-17 03:34:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:05,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-17 03:34:05,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:05,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897792611] [2021-12-17 03:34:05,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897792611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:05,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:05,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:34:05,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409900290] [2021-12-17 03:34:05,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:05,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:05,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:05,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:05,066 INFO L87 Difference]: Start difference. First operand 17016 states and 22706 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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) [2021-12-17 03:34:05,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:05,462 INFO L93 Difference]: Finished difference Result 31099 states and 41229 transitions. [2021-12-17 03:34:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:05,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 201 [2021-12-17 03:34:05,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:05,484 INFO L225 Difference]: With dead ends: 31099 [2021-12-17 03:34:05,485 INFO L226 Difference]: Without dead ends: 14491 [2021-12-17 03:34:05,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:05,500 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 321 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:05,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:34:05,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14491 states. [2021-12-17 03:34:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14491 to 14491. [2021-12-17 03:34:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14491 states, 14490 states have (on average 1.279503105590062) internal successors, (18540), 14490 states have internal predecessors, (18540), 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) [2021-12-17 03:34:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14491 states to 14491 states and 18540 transitions. [2021-12-17 03:34:05,771 INFO L78 Accepts]: Start accepts. Automaton has 14491 states and 18540 transitions. Word has length 201 [2021-12-17 03:34:05,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:05,771 INFO L470 AbstractCegarLoop]: Abstraction has 14491 states and 18540 transitions. [2021-12-17 03:34:05,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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) [2021-12-17 03:34:05,771 INFO L276 IsEmpty]: Start isEmpty. Operand 14491 states and 18540 transitions. [2021-12-17 03:34:05,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-17 03:34:05,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:05,787 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:05,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 03:34:05,787 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash -567138394, now seen corresponding path program 1 times [2021-12-17 03:34:05,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:05,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773375608] [2021-12-17 03:34:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:05,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:34:05,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:05,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773375608] [2021-12-17 03:34:05,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773375608] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:34:05,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832538417] [2021-12-17 03:34:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:05,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:34:05,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:34:05,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 03:34:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:06,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:34:06,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:34:06,277 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 03:34:06,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:34:06,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832538417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:06,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:34:06,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-17 03:34:06,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954667649] [2021-12-17 03:34:06,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:06,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:06,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:06,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:06,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:06,280 INFO L87 Difference]: Start difference. First operand 14491 states and 18540 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2021-12-17 03:34:06,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:06,974 INFO L93 Difference]: Finished difference Result 40584 states and 52250 transitions. [2021-12-17 03:34:06,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:06,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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 203 [2021-12-17 03:34:06,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:07,018 INFO L225 Difference]: With dead ends: 40584 [2021-12-17 03:34:07,018 INFO L226 Difference]: Without dead ends: 26095 [2021-12-17 03:34:07,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:07,035 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 220 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:07,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 125 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:34:07,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26095 states. [2021-12-17 03:34:07,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26095 to 22228. [2021-12-17 03:34:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22228 states, 22227 states have (on average 1.2626535294911594) internal successors, (28065), 22227 states have internal predecessors, (28065), 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) [2021-12-17 03:34:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22228 states to 22228 states and 28065 transitions. [2021-12-17 03:34:07,399 INFO L78 Accepts]: Start accepts. Automaton has 22228 states and 28065 transitions. Word has length 203 [2021-12-17 03:34:07,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:07,400 INFO L470 AbstractCegarLoop]: Abstraction has 22228 states and 28065 transitions. [2021-12-17 03:34:07,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2021-12-17 03:34:07,400 INFO L276 IsEmpty]: Start isEmpty. Operand 22228 states and 28065 transitions. [2021-12-17 03:34:07,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-17 03:34:07,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:07,418 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:07,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 03:34:07,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:07,635 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:07,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1701117943, now seen corresponding path program 1 times [2021-12-17 03:34:07,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:07,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418179962] [2021-12-17 03:34:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:07,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:34:07,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:07,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418179962] [2021-12-17 03:34:07,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418179962] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:07,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:07,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:34:07,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771612648] [2021-12-17 03:34:07,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:07,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:07,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:07,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:07,724 INFO L87 Difference]: Start difference. First operand 22228 states and 28065 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 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) [2021-12-17 03:34:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:08,417 INFO L93 Difference]: Finished difference Result 50178 states and 63268 transitions. [2021-12-17 03:34:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:08,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 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 207 [2021-12-17 03:34:08,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:08,458 INFO L225 Difference]: With dead ends: 50178 [2021-12-17 03:34:08,459 INFO L226 Difference]: Without dead ends: 28358 [2021-12-17 03:34:08,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:08,479 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 186 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:08,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 140 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:34:08,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28358 states. [2021-12-17 03:34:08,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28358 to 28354. [2021-12-17 03:34:08,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28354 states, 28353 states have (on average 1.2538355729552428) internal successors, (35550), 28353 states have internal predecessors, (35550), 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) [2021-12-17 03:34:08,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28354 states to 28354 states and 35550 transitions. [2021-12-17 03:34:08,914 INFO L78 Accepts]: Start accepts. Automaton has 28354 states and 35550 transitions. Word has length 207 [2021-12-17 03:34:08,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:08,914 INFO L470 AbstractCegarLoop]: Abstraction has 28354 states and 35550 transitions. [2021-12-17 03:34:08,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 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) [2021-12-17 03:34:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 28354 states and 35550 transitions. [2021-12-17 03:34:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-17 03:34:08,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:08,944 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:08,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 03:34:08,944 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:08,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash -325061122, now seen corresponding path program 1 times [2021-12-17 03:34:08,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:08,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622916672] [2021-12-17 03:34:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:08,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:34:09,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:09,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622916672] [2021-12-17 03:34:09,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622916672] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:34:09,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975011325] [2021-12-17 03:34:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:09,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:09,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:34:09,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:34:09,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 03:34:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:09,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 03:34:09,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:34:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 03:34:09,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:34:09,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975011325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:09,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:34:09,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-17 03:34:09,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844904848] [2021-12-17 03:34:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:09,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:09,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:09,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:09,437 INFO L87 Difference]: Start difference. First operand 28354 states and 35550 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-12-17 03:34:10,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:10,203 INFO L93 Difference]: Finished difference Result 55052 states and 68959 transitions. [2021-12-17 03:34:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:10,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 214 [2021-12-17 03:34:10,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:10,236 INFO L225 Difference]: With dead ends: 55052 [2021-12-17 03:34:10,236 INFO L226 Difference]: Without dead ends: 27512 [2021-12-17 03:34:10,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:10,257 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 86 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:10,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 336 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 03:34:10,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27512 states. [2021-12-17 03:34:10,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27512 to 27505. [2021-12-17 03:34:10,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27505 states, 27504 states have (on average 1.2133144269924374) internal successors, (33371), 27504 states have internal predecessors, (33371), 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) [2021-12-17 03:34:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27505 states to 27505 states and 33371 transitions. [2021-12-17 03:34:10,770 INFO L78 Accepts]: Start accepts. Automaton has 27505 states and 33371 transitions. Word has length 214 [2021-12-17 03:34:10,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:10,770 INFO L470 AbstractCegarLoop]: Abstraction has 27505 states and 33371 transitions. [2021-12-17 03:34:10,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-12-17 03:34:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 27505 states and 33371 transitions. [2021-12-17 03:34:10,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-17 03:34:10,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:10,792 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:10,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 03:34:11,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:11,008 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:11,008 INFO L85 PathProgramCache]: Analyzing trace with hash 749729365, now seen corresponding path program 1 times [2021-12-17 03:34:11,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:11,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675705329] [2021-12-17 03:34:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:11,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-17 03:34:11,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:11,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675705329] [2021-12-17 03:34:11,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675705329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:11,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:11,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:34:11,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849381300] [2021-12-17 03:34:11,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:11,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:11,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:11,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:11,080 INFO L87 Difference]: Start difference. First operand 27505 states and 33371 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2021-12-17 03:34:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:11,853 INFO L93 Difference]: Finished difference Result 63735 states and 78207 transitions. [2021-12-17 03:34:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:11,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 227 [2021-12-17 03:34:11,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:11,894 INFO L225 Difference]: With dead ends: 63735 [2021-12-17 03:34:11,894 INFO L226 Difference]: Without dead ends: 36841 [2021-12-17 03:34:11,907 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 [2021-12-17 03:34:11,908 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 214 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:11,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 149 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:34:11,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36841 states. [2021-12-17 03:34:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36841 to 36841. [2021-12-17 03:34:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36841 states, 36840 states have (on average 1.162513572204126) internal successors, (42827), 36840 states have internal predecessors, (42827), 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) [2021-12-17 03:34:12,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36841 states to 36841 states and 42827 transitions. [2021-12-17 03:34:12,373 INFO L78 Accepts]: Start accepts. Automaton has 36841 states and 42827 transitions. Word has length 227 [2021-12-17 03:34:12,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:12,374 INFO L470 AbstractCegarLoop]: Abstraction has 36841 states and 42827 transitions. [2021-12-17 03:34:12,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2021-12-17 03:34:12,374 INFO L276 IsEmpty]: Start isEmpty. Operand 36841 states and 42827 transitions. [2021-12-17 03:34:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-17 03:34:12,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:12,391 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:12,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 03:34:12,392 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:12,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:12,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1649515910, now seen corresponding path program 1 times [2021-12-17 03:34:12,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:12,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967570028] [2021-12-17 03:34:12,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:12,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:34:12,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:12,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967570028] [2021-12-17 03:34:12,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967570028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:12,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:12,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:34:12,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959051428] [2021-12-17 03:34:12,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:12,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:12,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:12,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:12,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:12,498 INFO L87 Difference]: Start difference. First operand 36841 states and 42827 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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) [2021-12-17 03:34:13,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:13,278 INFO L93 Difference]: Finished difference Result 73478 states and 85443 transitions. [2021-12-17 03:34:13,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:13,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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 240 [2021-12-17 03:34:13,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:13,320 INFO L225 Difference]: With dead ends: 73478 [2021-12-17 03:34:13,320 INFO L226 Difference]: Without dead ends: 37248 [2021-12-17 03:34:13,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:13,339 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 133 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:13,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 148 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 03:34:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37248 states. [2021-12-17 03:34:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37248 to 37247. [2021-12-17 03:34:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37247 states, 37246 states have (on average 1.1620576706223487) internal successors, (43282), 37246 states have internal predecessors, (43282), 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) [2021-12-17 03:34:13,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37247 states to 37247 states and 43282 transitions. [2021-12-17 03:34:13,886 INFO L78 Accepts]: Start accepts. Automaton has 37247 states and 43282 transitions. Word has length 240 [2021-12-17 03:34:13,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:13,886 INFO L470 AbstractCegarLoop]: Abstraction has 37247 states and 43282 transitions. [2021-12-17 03:34:13,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 2 states have internal predecessors, (240), 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) [2021-12-17 03:34:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand 37247 states and 43282 transitions. [2021-12-17 03:34:13,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-17 03:34:13,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:13,909 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:13,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 03:34:13,909 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:13,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:13,910 INFO L85 PathProgramCache]: Analyzing trace with hash -835334848, now seen corresponding path program 1 times [2021-12-17 03:34:13,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:13,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462700548] [2021-12-17 03:34:13,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:13,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-17 03:34:13,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:13,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462700548] [2021-12-17 03:34:13,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462700548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:13,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:13,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:34:13,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353647346] [2021-12-17 03:34:13,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:13,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:13,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:13,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:13,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:13,987 INFO L87 Difference]: Start difference. First operand 37247 states and 43282 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 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) [2021-12-17 03:34:14,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:14,802 INFO L93 Difference]: Finished difference Result 82235 states and 96182 transitions. [2021-12-17 03:34:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:14,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 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 248 [2021-12-17 03:34:14,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:14,852 INFO L225 Difference]: With dead ends: 82235 [2021-12-17 03:34:14,853 INFO L226 Difference]: Without dead ends: 46005 [2021-12-17 03:34:14,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:14,879 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 151 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:14,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 155 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 03:34:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46005 states. [2021-12-17 03:34:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46005 to 44768. [2021-12-17 03:34:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44768 states, 44767 states have (on average 1.1749056224451047) internal successors, (52597), 44767 states have internal predecessors, (52597), 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) [2021-12-17 03:34:15,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44768 states to 44768 states and 52597 transitions. [2021-12-17 03:34:15,556 INFO L78 Accepts]: Start accepts. Automaton has 44768 states and 52597 transitions. Word has length 248 [2021-12-17 03:34:15,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:15,556 INFO L470 AbstractCegarLoop]: Abstraction has 44768 states and 52597 transitions. [2021-12-17 03:34:15,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 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) [2021-12-17 03:34:15,557 INFO L276 IsEmpty]: Start isEmpty. Operand 44768 states and 52597 transitions. [2021-12-17 03:34:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-12-17 03:34:15,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:15,582 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:15,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 03:34:15,583 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:15,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:15,583 INFO L85 PathProgramCache]: Analyzing trace with hash 520711899, now seen corresponding path program 1 times [2021-12-17 03:34:15,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:15,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375269941] [2021-12-17 03:34:15,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:15,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-17 03:34:15,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:15,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375269941] [2021-12-17 03:34:15,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375269941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:15,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:15,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:34:15,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868992685] [2021-12-17 03:34:15,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:15,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:34:15,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:15,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:34:15,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:34:15,662 INFO L87 Difference]: Start difference. First operand 44768 states and 52597 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-12-17 03:34:16,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:16,607 INFO L93 Difference]: Finished difference Result 78333 states and 91898 transitions. [2021-12-17 03:34:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:34:16,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 261 [2021-12-17 03:34:16,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:16,653 INFO L225 Difference]: With dead ends: 78333 [2021-12-17 03:34:16,653 INFO L226 Difference]: Without dead ends: 34583 [2021-12-17 03:34:16,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:34:16,680 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 430 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:16,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 55 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 03:34:16,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34583 states. [2021-12-17 03:34:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34583 to 33974. [2021-12-17 03:34:17,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33974 states, 33973 states have (on average 1.1171224207458865) internal successors, (37952), 33973 states have internal predecessors, (37952), 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) [2021-12-17 03:34:17,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33974 states to 33974 states and 37952 transitions. [2021-12-17 03:34:17,173 INFO L78 Accepts]: Start accepts. Automaton has 33974 states and 37952 transitions. Word has length 261 [2021-12-17 03:34:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:17,174 INFO L470 AbstractCegarLoop]: Abstraction has 33974 states and 37952 transitions. [2021-12-17 03:34:17,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-12-17 03:34:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 33974 states and 37952 transitions. [2021-12-17 03:34:17,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-12-17 03:34:17,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:17,204 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:17,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 03:34:17,204 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:17,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:17,205 INFO L85 PathProgramCache]: Analyzing trace with hash 672800317, now seen corresponding path program 1 times [2021-12-17 03:34:17,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:17,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651827606] [2021-12-17 03:34:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:17,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-17 03:34:17,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:17,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651827606] [2021-12-17 03:34:17,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651827606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:17,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:34:17,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:34:17,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433971794] [2021-12-17 03:34:17,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:17,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:17,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:17,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:17,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:17,273 INFO L87 Difference]: Start difference. First operand 33974 states and 37952 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 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) [2021-12-17 03:34:17,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:17,968 INFO L93 Difference]: Finished difference Result 67133 states and 75003 transitions. [2021-12-17 03:34:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:17,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 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 274 [2021-12-17 03:34:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:18,001 INFO L225 Difference]: With dead ends: 67133 [2021-12-17 03:34:18,002 INFO L226 Difference]: Without dead ends: 34177 [2021-12-17 03:34:18,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:34:18,016 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 172 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:18,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 157 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 03:34:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34177 states. [2021-12-17 03:34:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34177 to 34177. [2021-12-17 03:34:18,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34177 states, 34176 states have (on average 1.1168363764044944) internal successors, (38169), 34176 states have internal predecessors, (38169), 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) [2021-12-17 03:34:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34177 states to 34177 states and 38169 transitions. [2021-12-17 03:34:18,477 INFO L78 Accepts]: Start accepts. Automaton has 34177 states and 38169 transitions. Word has length 274 [2021-12-17 03:34:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:18,477 INFO L470 AbstractCegarLoop]: Abstraction has 34177 states and 38169 transitions. [2021-12-17 03:34:18,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 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) [2021-12-17 03:34:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 34177 states and 38169 transitions. [2021-12-17 03:34:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-12-17 03:34:18,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:18,494 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:18,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 03:34:18,494 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:18,495 INFO L85 PathProgramCache]: Analyzing trace with hash 471189732, now seen corresponding path program 1 times [2021-12-17 03:34:18,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:18,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064966502] [2021-12-17 03:34:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:18,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:18,596 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-17 03:34:18,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:18,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064966502] [2021-12-17 03:34:18,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064966502] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:34:18,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121681108] [2021-12-17 03:34:18,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:18,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:34:18,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:34:18,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 03:34:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:18,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:34:18,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:34:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 03:34:19,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:34:19,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121681108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:19,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:34:19,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-17 03:34:19,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642708696] [2021-12-17 03:34:19,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:19,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:19,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:19,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:19,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:19,095 INFO L87 Difference]: Start difference. First operand 34177 states and 38169 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2021-12-17 03:34:19,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:19,853 INFO L93 Difference]: Finished difference Result 66525 states and 74315 transitions. [2021-12-17 03:34:19,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:19,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 275 [2021-12-17 03:34:19,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:19,899 INFO L225 Difference]: With dead ends: 66525 [2021-12-17 03:34:19,900 INFO L226 Difference]: Without dead ends: 33569 [2021-12-17 03:34:19,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:19,916 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 253 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:19,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 287 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 03:34:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33569 states. [2021-12-17 03:34:20,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33569 to 31127. [2021-12-17 03:34:20,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31127 states, 31126 states have (on average 1.101297950266658) internal successors, (34279), 31126 states have internal predecessors, (34279), 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) [2021-12-17 03:34:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31127 states to 31127 states and 34279 transitions. [2021-12-17 03:34:20,363 INFO L78 Accepts]: Start accepts. Automaton has 31127 states and 34279 transitions. Word has length 275 [2021-12-17 03:34:20,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:20,364 INFO L470 AbstractCegarLoop]: Abstraction has 31127 states and 34279 transitions. [2021-12-17 03:34:20,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2021-12-17 03:34:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 31127 states and 34279 transitions. [2021-12-17 03:34:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-17 03:34:20,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:20,383 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:20,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 03:34:20,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-17 03:34:20,605 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:20,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:20,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2136969256, now seen corresponding path program 1 times [2021-12-17 03:34:20,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:20,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802680898] [2021-12-17 03:34:20,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:20,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:20,743 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 80 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-17 03:34:20,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:20,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802680898] [2021-12-17 03:34:20,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802680898] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:34:20,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848249435] [2021-12-17 03:34:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:20,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:20,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:34:20,754 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:34:20,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 03:34:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:20,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 03:34:20,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:34:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-17 03:34:21,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:34:21,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848249435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:21,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:34:21,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-17 03:34:21,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911507637] [2021-12-17 03:34:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:21,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:21,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:21,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:21,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:21,368 INFO L87 Difference]: Start difference. First operand 31127 states and 34279 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2021-12-17 03:34:22,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:22,051 INFO L93 Difference]: Finished difference Result 69569 states and 76822 transitions. [2021-12-17 03:34:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:22,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 281 [2021-12-17 03:34:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:22,093 INFO L225 Difference]: With dead ends: 69569 [2021-12-17 03:34:22,093 INFO L226 Difference]: Without dead ends: 39459 [2021-12-17 03:34:22,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:22,113 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 63 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:22,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 349 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:34:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39459 states. [2021-12-17 03:34:22,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39459 to 39445. [2021-12-17 03:34:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39445 states, 39444 states have (on average 1.0978095527836933) internal successors, (43302), 39444 states have internal predecessors, (43302), 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) [2021-12-17 03:34:22,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39445 states to 39445 states and 43302 transitions. [2021-12-17 03:34:22,627 INFO L78 Accepts]: Start accepts. Automaton has 39445 states and 43302 transitions. Word has length 281 [2021-12-17 03:34:22,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:22,628 INFO L470 AbstractCegarLoop]: Abstraction has 39445 states and 43302 transitions. [2021-12-17 03:34:22,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2021-12-17 03:34:22,628 INFO L276 IsEmpty]: Start isEmpty. Operand 39445 states and 43302 transitions. [2021-12-17 03:34:22,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-12-17 03:34:22,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:34:22,658 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:22,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 03:34:22,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-17 03:34:22,863 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:34:22,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:34:22,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1017291907, now seen corresponding path program 1 times [2021-12-17 03:34:22,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:34:22,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216728808] [2021-12-17 03:34:22,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:22,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:34:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 188 proven. 3 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-17 03:34:23,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:34:23,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216728808] [2021-12-17 03:34:23,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216728808] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:34:23,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953547235] [2021-12-17 03:34:23,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:34:23,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:23,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:34:23,085 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:34:23,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-17 03:34:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:34:23,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 03:34:23,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:34:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-12-17 03:34:23,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:34:23,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953547235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:34:23,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:34:23,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-17 03:34:23,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251306680] [2021-12-17 03:34:23,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:34:23,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:34:23,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:34:23,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:34:23,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:23,698 INFO L87 Difference]: Start difference. First operand 39445 states and 43302 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-12-17 03:34:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:34:24,393 INFO L93 Difference]: Finished difference Result 74009 states and 81153 transitions. [2021-12-17 03:34:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:34:24,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 351 [2021-12-17 03:34:24,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:34:24,406 INFO L225 Difference]: With dead ends: 74009 [2021-12-17 03:34:24,407 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 03:34:24,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:34:24,434 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 242 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:34:24,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 314 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:34:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 03:34:24,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 03:34:24,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-17 03:34:24,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 03:34:24,436 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 351 [2021-12-17 03:34:24,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:34:24,450 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 03:34:24,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-12-17 03:34:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 03:34:24,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 03:34:24,454 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 03:34:24,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-17 03:34:24,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:34:24,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 03:34:30,803 INFO L858 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,804 INFO L858 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-12-17 03:34:30,805 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,806 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,807 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,808 INFO L858 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-12-17 03:34:30,809 INFO L858 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,810 INFO L858 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,810 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,810 INFO L858 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,810 INFO L858 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,810 INFO L858 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,810 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,811 INFO L858 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,812 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,812 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,812 INFO L858 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,812 INFO L858 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,812 INFO L858 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,812 INFO L858 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,812 INFO L858 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,813 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1543) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-12-17 03:34:30,814 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,815 INFO L858 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-12-17 03:34:30,816 INFO L858 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-12-17 03:34:30,816 INFO L858 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-12-17 03:34:30,816 INFO L858 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,826 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,826 INFO L858 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,826 INFO L858 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-12-17 03:34:30,826 INFO L858 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-12-17 03:34:30,827 INFO L858 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-12-17 03:34:30,828 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,829 INFO L858 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,829 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,830 INFO L854 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse13 (= ~a26~0 ~a19~0)) (.cse12 (= ~a3~0 1)) (.cse5 (= ~a26~0 1)) (.cse2 (= ~a11~0 1)) (.cse6 (= 0 ~a12~0)) (.cse3 (= ~a27~0 1)) (.cse7 (not (= 1 ~a14~0))) (.cse11 (<= 2 ~a3~0)) (.cse4 (= ~a6~0 1)) (.cse0 (= ~a5~0 1)) (.cse1 (= ~a12~0 1)) (.cse10 (<= ~a6~0 0)) (.cse8 (<= ~a3~0 0)) (.cse9 (<= ~a11~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse7 .cse4) (and .cse1 .cse0 .cse7 .cse8 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse9 .cse11) (and .cse0 .cse1 .cse5 .cse8 .cse9 .cse4) (and .cse0 .cse1 (= ~a26~0 ~a23~0) .cse12 .cse9 .cse4) (and .cse0 .cse1 .cse2 .cse12 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse9 .cse11 .cse4) (and .cse0 .cse10 .cse2 .cse3 .cse6) (and .cse0 .cse1 .cse5 .cse10 .cse2 .cse7) (and .cse0 .cse1 .cse5 .cse10 .cse3 .cse9) (and .cse0 .cse10 .cse3 .cse6 .cse9) (and .cse0 .cse2 .cse3 .cse6 .cse8 .cse4) (and .cse0 .cse1 .cse5 .cse10 (= ~a29~0 1) .cse2 (= ~a6~0 ~a17~0) .cse3) (and .cse0 .cse1 .cse5 .cse10 .cse2 .cse8) (and .cse0 .cse6 .cse9 .cse11 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse11 .cse4) (and .cse0 .cse1 .cse5 .cse2 .cse7 .cse8 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse2 .cse11) (and .cse1 .cse0 .cse5 .cse7 .cse4 .cse9) (and .cse0 .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse10 .cse2 .cse6 .cse11) (and .cse0 .cse1 .cse5 .cse2 .cse13 .cse8 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse11 .cse4) (and .cse0 .cse1 .cse13 .cse9 .cse11 .cse4) (and .cse0 .cse5 .cse10 .cse6 .cse12 .cse9) (and .cse0 .cse10 .cse6 .cse12 .cse7 .cse9) (and .cse0 .cse1 .cse10 .cse3 .cse9 .cse11) (and .cse0 .cse3 .cse6 .cse9 .cse4) (and .cse0 .cse5 .cse6 .cse9 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse8 .cse4) (and .cse0 .cse5 .cse10 .cse2 .cse6) (and .cse1 .cse0 .cse3 .cse7 .cse9 .cse11 .cse4) (and .cse0 .cse1 .cse10 .cse8 .cse9))) [2021-12-17 03:34:30,830 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,830 INFO L858 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,830 INFO L858 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,831 INFO L858 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-12-17 03:34:30,831 INFO L858 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-12-17 03:34:30,831 INFO L858 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,831 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,831 INFO L858 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,831 INFO L861 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-12-17 03:34:30,831 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,831 INFO L858 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,832 INFO L858 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-12-17 03:34:30,833 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,834 INFO L858 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,834 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-12-17 03:34:30,834 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-12-17 03:34:30,834 INFO L858 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,834 INFO L854 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse13 (= ~a26~0 ~a19~0)) (.cse12 (= ~a3~0 1)) (.cse5 (= ~a26~0 1)) (.cse2 (= ~a11~0 1)) (.cse6 (= 0 ~a12~0)) (.cse3 (= ~a27~0 1)) (.cse7 (not (= 1 ~a14~0))) (.cse11 (<= 2 ~a3~0)) (.cse4 (= ~a6~0 1)) (.cse0 (= ~a5~0 1)) (.cse1 (= ~a12~0 1)) (.cse10 (<= ~a6~0 0)) (.cse8 (<= ~a3~0 0)) (.cse9 (<= ~a11~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse7 .cse4) (and .cse1 .cse0 .cse7 .cse8 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse8 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse9 .cse11) (and .cse0 .cse1 (= ~a26~0 ~a23~0) .cse12 .cse9 .cse4) (and .cse0 .cse1 .cse2 .cse12 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse9 .cse11 .cse4) (and .cse0 .cse10 .cse2 .cse3 .cse6) (and .cse0 .cse1 .cse5 .cse10 .cse2 .cse7) (and .cse0 .cse1 .cse5 .cse10 .cse3 .cse9) (and .cse0 .cse10 .cse3 .cse6 .cse9) (and .cse0 .cse2 .cse3 .cse6 .cse8 .cse4) (and .cse0 .cse1 .cse5 .cse10 (= ~a29~0 1) .cse2 (= ~a6~0 ~a17~0) .cse3) (and .cse0 .cse1 .cse5 .cse10 .cse2 .cse8) (and .cse0 .cse6 .cse9 .cse11 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse11 .cse4) (and .cse0 .cse1 .cse5 .cse2 .cse7 .cse8 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse2 .cse11) (and .cse1 .cse0 .cse5 .cse7 .cse4 .cse9) (and .cse0 .cse5 .cse2 .cse3 .cse6 .cse4) (and .cse0 .cse10 .cse2 .cse6 .cse11) (and .cse0 .cse1 .cse5 .cse2 .cse13 .cse8 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse11 .cse4) (and .cse0 .cse1 .cse13 .cse9 .cse11 .cse4) (and .cse0 .cse5 .cse10 .cse6 .cse12 .cse9) (and .cse0 .cse10 .cse6 .cse12 .cse7 .cse9) (and .cse0 .cse1 .cse10 .cse3 .cse9 .cse11) (and .cse0 .cse3 .cse6 .cse9 .cse4) (and .cse0 .cse5 .cse6 .cse9 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse8 .cse4) (and .cse0 .cse5 .cse10 .cse2 .cse6) (and .cse1 .cse0 .cse3 .cse7 .cse9 .cse11 .cse4) (and .cse0 .cse1 .cse10 .cse8 .cse9))) [2021-12-17 03:34:30,834 INFO L858 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,834 INFO L858 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,834 INFO L858 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,835 INFO L858 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-12-17 03:34:30,836 INFO L858 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-12-17 03:34:30,837 INFO L858 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,838 INFO L858 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,839 INFO L858 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,840 INFO L858 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,840 INFO L858 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,841 INFO L858 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,842 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,843 INFO L858 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,844 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,845 INFO L858 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-12-17 03:34:30,849 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:34:30,851 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 03:34:30,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:34:30 BoogieIcfgContainer [2021-12-17 03:34:30,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 03:34:30,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 03:34:30,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 03:34:30,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 03:34:30,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:33:57" (3/4) ... [2021-12-17 03:34:30,892 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 03:34:30,916 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 03:34:30,918 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 03:34:30,920 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 03:34:30,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 03:34:31,062 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 03:34:31,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 03:34:31,063 INFO L158 Benchmark]: Toolchain (without parser) took 36119.81ms. Allocated memory was 115.3MB in the beginning and 7.9GB in the end (delta: 7.8GB). Free memory was 85.7MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 4.4GB. Max. memory is 16.1GB. [2021-12-17 03:34:31,063 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 17.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 03:34:31,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.05ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 85.4MB in the beginning and 149.8MB in the end (delta: -64.4MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2021-12-17 03:34:31,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.11ms. Allocated memory is still 192.9MB. Free memory was 149.8MB in the beginning and 135.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 03:34:31,064 INFO L158 Benchmark]: Boogie Preprocessor took 83.94ms. Allocated memory is still 192.9MB. Free memory was 135.1MB in the beginning and 124.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 03:34:31,064 INFO L158 Benchmark]: RCFGBuilder took 1374.54ms. Allocated memory is still 192.9MB. Free memory was 124.7MB in the beginning and 120.9MB in the end (delta: 3.7MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2021-12-17 03:34:31,064 INFO L158 Benchmark]: TraceAbstraction took 33652.51ms. Allocated memory was 192.9MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 119.9MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 4.4GB. Max. memory is 16.1GB. [2021-12-17 03:34:31,064 INFO L158 Benchmark]: Witness Printer took 172.70ms. Allocated memory is still 7.9GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-17 03:34:31,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 17.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.05ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 85.4MB in the beginning and 149.8MB in the end (delta: -64.4MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.11ms. Allocated memory is still 192.9MB. Free memory was 149.8MB in the beginning and 135.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.94ms. Allocated memory is still 192.9MB. Free memory was 135.1MB in the beginning and 124.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1374.54ms. Allocated memory is still 192.9MB. Free memory was 124.7MB in the beginning and 120.9MB in the end (delta: 3.7MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * TraceAbstraction took 33652.51ms. Allocated memory was 192.9MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 119.9MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 4.4GB. Max. memory is 16.1GB. * Witness Printer took 172.70ms. Allocated memory is still 7.9GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1543]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.6s, OverallIterations: 19, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4019 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4019 mSDsluCounter, 3977 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 646 mSDsCounter, 1457 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10921 IncrementalHoareTripleChecker+Invalid, 12378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1457 mSolverCounterUnsat, 3331 mSDtfsCounter, 10921 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1727 GetRequests, 1693 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44768occurred in iteration=14, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 10114 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 357 NumberOfFragments, 1317 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 13206 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 5932 NumberOfCodeBlocks, 5932 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 5906 ConstructedInterpolants, 0 QuantifiedInterpolants, 11913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3260 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 26 InterpolantComputations, 19 PerfectInterpolantSequences, 2057/2099 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((a5 == 1 && a12 == 1) && a11 == 1) && a27 == 1) && a6 == 1) || (((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && !(1 == a14)) && a6 == 1)) || (((((a12 == 1 && a5 == 1) && !(1 == a14)) && a3 <= 0) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 <= 0) && 2 <= a3)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a3 <= 0) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == a23) && a3 == 1) && a11 <= 0) && a6 == 1)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a3 == 1) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a27 == 1) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a11 <= 0) && 2 <= a3) && a6 == 1)) || ((((a5 == 1 && a6 <= 0) && a11 == 1) && a27 == 1) && 0 == a12)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 == 1) && !(1 == a14))) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a27 == 1) && a11 <= 0)) || ((((a5 == 1 && a6 <= 0) && a27 == 1) && 0 == a12) && a11 <= 0)) || (((((a5 == 1 && a11 == 1) && a27 == 1) && 0 == a12) && a3 <= 0) && a6 == 1)) || (((((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a29 == 1) && a11 == 1) && a6 == a17) && a27 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 == 1) && a3 <= 0)) || ((((a5 == 1 && 0 == a12) && a11 <= 0) && 2 <= a3) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && 2 <= a3) && a6 == 1)) || ((((((a5 == 1 && a12 == 1) && a26 == 1) && a11 == 1) && !(1 == a14)) && a3 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 == 1) && 2 <= a3)) || (((((a12 == 1 && a5 == 1) && a26 == 1) && !(1 == a14)) && a6 == 1) && a11 <= 0)) || (((((a5 == 1 && a26 == 1) && a11 == 1) && a27 == 1) && 0 == a12) && a6 == 1)) || ((((a5 == 1 && a6 <= 0) && a11 == 1) && 0 == a12) && 2 <= a3)) || ((((((a5 == 1 && a12 == 1) && a26 == 1) && a11 == 1) && a26 == a19) && a3 <= 0) && a6 == 1)) || (((((a5 == 1 && a11 == 1) && a27 == 1) && 0 == a12) && 2 <= a3) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == a19) && a11 <= 0) && 2 <= a3) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a6 <= 0) && 0 == a12) && a3 == 1) && a11 <= 0)) || (((((a5 == 1 && a6 <= 0) && 0 == a12) && a3 == 1) && !(1 == a14)) && a11 <= 0)) || (((((a5 == 1 && a12 == 1) && a6 <= 0) && a27 == 1) && a11 <= 0) && 2 <= a3)) || ((((a5 == 1 && a27 == 1) && 0 == a12) && a11 <= 0) && a6 == 1)) || ((((a5 == 1 && a26 == 1) && 0 == a12) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && a3 <= 0) && a6 == 1)) || ((((a5 == 1 && a26 == 1) && a6 <= 0) && a11 == 1) && 0 == a12)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && !(1 == a14)) && a11 <= 0) && 2 <= a3) && a6 == 1)) || ((((a5 == 1 && a12 == 1) && a6 <= 0) && a3 <= 0) && a11 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((a5 == 1 && a12 == 1) && a11 == 1) && a27 == 1) && a6 == 1) || (((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && !(1 == a14)) && a6 == 1)) || (((((a12 == 1 && a5 == 1) && !(1 == a14)) && a3 <= 0) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a3 <= 0) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 <= 0) && 2 <= a3)) || (((((a5 == 1 && a12 == 1) && a26 == a23) && a3 == 1) && a11 <= 0) && a6 == 1)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a3 == 1) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a27 == 1) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a11 <= 0) && 2 <= a3) && a6 == 1)) || ((((a5 == 1 && a6 <= 0) && a11 == 1) && a27 == 1) && 0 == a12)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 == 1) && !(1 == a14))) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a27 == 1) && a11 <= 0)) || ((((a5 == 1 && a6 <= 0) && a27 == 1) && 0 == a12) && a11 <= 0)) || (((((a5 == 1 && a11 == 1) && a27 == 1) && 0 == a12) && a3 <= 0) && a6 == 1)) || (((((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a29 == 1) && a11 == 1) && a6 == a17) && a27 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 == 1) && a3 <= 0)) || ((((a5 == 1 && 0 == a12) && a11 <= 0) && 2 <= a3) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && 2 <= a3) && a6 == 1)) || ((((((a5 == 1 && a12 == 1) && a26 == 1) && a11 == 1) && !(1 == a14)) && a3 <= 0) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == 1) && a6 <= 0) && a11 == 1) && 2 <= a3)) || (((((a12 == 1 && a5 == 1) && a26 == 1) && !(1 == a14)) && a6 == 1) && a11 <= 0)) || (((((a5 == 1 && a26 == 1) && a11 == 1) && a27 == 1) && 0 == a12) && a6 == 1)) || ((((a5 == 1 && a6 <= 0) && a11 == 1) && 0 == a12) && 2 <= a3)) || ((((((a5 == 1 && a12 == 1) && a26 == 1) && a11 == 1) && a26 == a19) && a3 <= 0) && a6 == 1)) || (((((a5 == 1 && a11 == 1) && a27 == 1) && 0 == a12) && 2 <= a3) && a6 == 1)) || (((((a5 == 1 && a12 == 1) && a26 == a19) && a11 <= 0) && 2 <= a3) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a6 <= 0) && 0 == a12) && a3 == 1) && a11 <= 0)) || (((((a5 == 1 && a6 <= 0) && 0 == a12) && a3 == 1) && !(1 == a14)) && a11 <= 0)) || (((((a5 == 1 && a12 == 1) && a6 <= 0) && a27 == 1) && a11 <= 0) && 2 <= a3)) || ((((a5 == 1 && a27 == 1) && 0 == a12) && a11 <= 0) && a6 == 1)) || ((((a5 == 1 && a26 == 1) && 0 == a12) && a11 <= 0) && a6 == 1)) || (((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && a3 <= 0) && a6 == 1)) || ((((a5 == 1 && a26 == 1) && a6 <= 0) && a11 == 1) && 0 == a12)) || ((((((a12 == 1 && a5 == 1) && a27 == 1) && !(1 == a14)) && a11 <= 0) && 2 <= a3) && a6 == 1)) || ((((a5 == 1 && a12 == 1) && a6 <= 0) && a3 <= 0) && a11 <= 0) RESULT: Ultimate proved your program to be correct! [2021-12-17 03:34:31,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE