/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:36:04,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:36:04,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:36:04,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:36:04,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:36:04,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:36:04,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:36:04,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:36:04,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:36:04,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:36:04,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:36:04,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:36:04,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:36:04,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:36:04,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:36:04,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:36:04,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:36:04,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:36:04,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:36:04,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:36:04,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:36:04,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:36:04,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:36:04,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:36:04,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:36:04,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:36:04,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:36:04,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:36:04,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:36:04,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:36:04,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:36:04,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:36:04,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:36:04,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:36:04,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:36:04,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:36:04,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:36:04,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:36:04,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:36:04,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:36:04,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:36:04,830 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:36:04,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:36:04,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:36:04,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:36:04,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:36:04,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:36:04,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:36:04,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:36:04,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:36:04,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:36:04,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:36:04,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:36:04,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:36:04,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:36:04,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:36:04,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:36:04,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:36:04,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:36:04,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:36:04,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:36:04,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:36:04,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:36:05,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:36:05,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:36:05,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:36:05,238 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:36:05,239 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:36:05,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2020-12-22 08:36:05,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8143985d/82eb0c73626445a3ba697d22e0c8ba0a/FLAG9ecc63643 [2020-12-22 08:36:06,054 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:36:06,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2020-12-22 08:36:06,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8143985d/82eb0c73626445a3ba697d22e0c8ba0a/FLAG9ecc63643 [2020-12-22 08:36:06,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8143985d/82eb0c73626445a3ba697d22e0c8ba0a [2020-12-22 08:36:06,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:36:06,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:36:06,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:36:06,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:36:06,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:36:06,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:36:06" (1/1) ... [2020-12-22 08:36:06,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70234580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:06, skipping insertion in model container [2020-12-22 08:36:06,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:36:06" (1/1) ... [2020-12-22 08:36:06,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:36:06,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:36:06,486 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[5795,5808] [2020-12-22 08:36:06,533 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8801,8814] [2020-12-22 08:36:06,582 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[11861,11874] [2020-12-22 08:36:06,625 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[14768,14781] [2020-12-22 08:36:06,680 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[17983,17996] [2020-12-22 08:36:06,724 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21095,21108] [2020-12-22 08:36:06,758 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24146,24159] [2020-12-22 08:36:06,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:36:06,826 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:36:06,866 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[5795,5808] [2020-12-22 08:36:06,878 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8801,8814] [2020-12-22 08:36:06,891 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[11861,11874] [2020-12-22 08:36:06,903 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[14768,14781] [2020-12-22 08:36:06,946 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[17983,17996] [2020-12-22 08:36:06,962 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21095,21108] [2020-12-22 08:36:06,974 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24146,24159] [2020-12-22 08:36:07,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:36:07,025 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:36:07,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07 WrapperNode [2020-12-22 08:36:07,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:36:07,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:36:07,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:36:07,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:36:07,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:36:07,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:36:07,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:36:07,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:36:07,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... [2020-12-22 08:36:07,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:36:07,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:36:07,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:36:07,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:36:07,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:36:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:36:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:36:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:36:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:36:08,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:36:08,578 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:36:08,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:36:08 BoogieIcfgContainer [2020-12-22 08:36:08,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:36:08,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:36:08,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:36:08,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:36:08,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:36:06" (1/3) ... [2020-12-22 08:36:08,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f104954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:36:08, skipping insertion in model container [2020-12-22 08:36:08,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:36:07" (2/3) ... [2020-12-22 08:36:08,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f104954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:36:08, skipping insertion in model container [2020-12-22 08:36:08,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:36:08" (3/3) ... [2020-12-22 08:36:08,590 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2020-12-22 08:36:08,597 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:36:08,603 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 08:36:08,623 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 08:36:08,653 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:36:08,654 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:36:08,654 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:36:08,654 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:36:08,654 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:36:08,655 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:36:08,655 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:36:08,655 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:36:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states. [2020-12-22 08:36:08,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 08:36:08,691 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:08,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:08,693 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:08,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:08,699 INFO L82 PathProgramCache]: Analyzing trace with hash -506083603, now seen corresponding path program 1 times [2020-12-22 08:36:08,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:08,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197940140] [2020-12-22 08:36:08,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:09,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197940140] [2020-12-22 08:36:09,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:09,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:36:09,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767192784] [2020-12-22 08:36:09,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:36:09,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:09,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:36:09,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:09,171 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 5 states. [2020-12-22 08:36:09,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:09,612 INFO L93 Difference]: Finished difference Result 392 states and 660 transitions. [2020-12-22 08:36:09,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:36:09,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-22 08:36:09,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:09,629 INFO L225 Difference]: With dead ends: 392 [2020-12-22 08:36:09,630 INFO L226 Difference]: Without dead ends: 244 [2020-12-22 08:36:09,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:36:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-12-22 08:36:09,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-12-22 08:36:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-22 08:36:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 300 transitions. [2020-12-22 08:36:09,699 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 300 transitions. Word has length 48 [2020-12-22 08:36:09,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:09,700 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 300 transitions. [2020-12-22 08:36:09,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 300 transitions. [2020-12-22 08:36:09,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 08:36:09,704 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:09,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:09,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:36:09,705 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1206513712, now seen corresponding path program 1 times [2020-12-22 08:36:09,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:09,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053491714] [2020-12-22 08:36:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:09,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053491714] [2020-12-22 08:36:09,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:09,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:36:09,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996043099] [2020-12-22 08:36:09,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:36:09,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:09,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:36:09,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:09,930 INFO L87 Difference]: Start difference. First operand 244 states and 300 transitions. Second operand 5 states. [2020-12-22 08:36:10,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:10,216 INFO L93 Difference]: Finished difference Result 312 states and 387 transitions. [2020-12-22 08:36:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:36:10,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-22 08:36:10,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:10,219 INFO L225 Difference]: With dead ends: 312 [2020-12-22 08:36:10,219 INFO L226 Difference]: Without dead ends: 186 [2020-12-22 08:36:10,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:36:10,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-12-22 08:36:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-12-22 08:36:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-12-22 08:36:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2020-12-22 08:36:10,241 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 48 [2020-12-22 08:36:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:10,242 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2020-12-22 08:36:10,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2020-12-22 08:36:10,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 08:36:10,244 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:10,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:10,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:36:10,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:10,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:10,246 INFO L82 PathProgramCache]: Analyzing trace with hash 731649800, now seen corresponding path program 1 times [2020-12-22 08:36:10,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:10,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215401030] [2020-12-22 08:36:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:10,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:10,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215401030] [2020-12-22 08:36:10,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:10,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:36:10,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72377063] [2020-12-22 08:36:10,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:36:10,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:10,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:36:10,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:10,401 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand 5 states. [2020-12-22 08:36:10,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:10,689 INFO L93 Difference]: Finished difference Result 354 states and 447 transitions. [2020-12-22 08:36:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:36:10,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-22 08:36:10,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:10,692 INFO L225 Difference]: With dead ends: 354 [2020-12-22 08:36:10,693 INFO L226 Difference]: Without dead ends: 251 [2020-12-22 08:36:10,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:36:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-12-22 08:36:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 226. [2020-12-22 08:36:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-12-22 08:36:10,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 290 transitions. [2020-12-22 08:36:10,740 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 290 transitions. Word has length 48 [2020-12-22 08:36:10,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:10,741 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 290 transitions. [2020-12-22 08:36:10,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:10,741 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 290 transitions. [2020-12-22 08:36:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 08:36:10,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:10,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:10,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:36:10,747 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:10,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:10,748 INFO L82 PathProgramCache]: Analyzing trace with hash 613838546, now seen corresponding path program 1 times [2020-12-22 08:36:10,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:10,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194484281] [2020-12-22 08:36:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:10,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194484281] [2020-12-22 08:36:10,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:10,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:36:10,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773807134] [2020-12-22 08:36:10,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:36:10,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:10,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:36:10,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:36:10,966 INFO L87 Difference]: Start difference. First operand 226 states and 290 transitions. Second operand 8 states. [2020-12-22 08:36:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:11,389 INFO L93 Difference]: Finished difference Result 479 states and 630 transitions. [2020-12-22 08:36:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:36:11,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-12-22 08:36:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:11,394 INFO L225 Difference]: With dead ends: 479 [2020-12-22 08:36:11,394 INFO L226 Difference]: Without dead ends: 351 [2020-12-22 08:36:11,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:36:11,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-12-22 08:36:11,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 226. [2020-12-22 08:36:11,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-12-22 08:36:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 289 transitions. [2020-12-22 08:36:11,432 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 289 transitions. Word has length 50 [2020-12-22 08:36:11,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:11,432 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 289 transitions. [2020-12-22 08:36:11,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:36:11,433 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 289 transitions. [2020-12-22 08:36:11,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 08:36:11,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:11,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:11,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:36:11,440 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:11,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:11,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1717096174, now seen corresponding path program 1 times [2020-12-22 08:36:11,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:11,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406989226] [2020-12-22 08:36:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:11,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406989226] [2020-12-22 08:36:11,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:11,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:36:11,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102136359] [2020-12-22 08:36:11,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:36:11,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:11,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:36:11,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:36:11,658 INFO L87 Difference]: Start difference. First operand 226 states and 289 transitions. Second operand 9 states. [2020-12-22 08:36:12,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:12,388 INFO L93 Difference]: Finished difference Result 548 states and 743 transitions. [2020-12-22 08:36:12,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:36:12,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-12-22 08:36:12,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:12,393 INFO L225 Difference]: With dead ends: 548 [2020-12-22 08:36:12,393 INFO L226 Difference]: Without dead ends: 542 [2020-12-22 08:36:12,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:36:12,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-12-22 08:36:12,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 226. [2020-12-22 08:36:12,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-12-22 08:36:12,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 288 transitions. [2020-12-22 08:36:12,423 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 288 transitions. Word has length 50 [2020-12-22 08:36:12,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:12,424 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 288 transitions. [2020-12-22 08:36:12,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:36:12,424 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 288 transitions. [2020-12-22 08:36:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 08:36:12,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:12,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:12,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:36:12,426 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:12,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:12,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1648014290, now seen corresponding path program 1 times [2020-12-22 08:36:12,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:12,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604608345] [2020-12-22 08:36:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:12,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604608345] [2020-12-22 08:36:12,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:12,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:36:12,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910717452] [2020-12-22 08:36:12,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:36:12,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:12,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:36:12,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:36:12,574 INFO L87 Difference]: Start difference. First operand 226 states and 288 transitions. Second operand 9 states. [2020-12-22 08:36:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:13,272 INFO L93 Difference]: Finished difference Result 551 states and 761 transitions. [2020-12-22 08:36:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:36:13,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-12-22 08:36:13,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:13,276 INFO L225 Difference]: With dead ends: 551 [2020-12-22 08:36:13,276 INFO L226 Difference]: Without dead ends: 448 [2020-12-22 08:36:13,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:36:13,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-12-22 08:36:13,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 226. [2020-12-22 08:36:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-12-22 08:36:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 287 transitions. [2020-12-22 08:36:13,302 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 287 transitions. Word has length 50 [2020-12-22 08:36:13,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:13,303 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 287 transitions. [2020-12-22 08:36:13,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:36:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 287 transitions. [2020-12-22 08:36:13,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 08:36:13,304 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:13,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:13,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:36:13,304 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:13,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:13,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1708755507, now seen corresponding path program 1 times [2020-12-22 08:36:13,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:13,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114092039] [2020-12-22 08:36:13,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:13,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114092039] [2020-12-22 08:36:13,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:13,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:36:13,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905233487] [2020-12-22 08:36:13,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:36:13,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:13,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:36:13,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:36:13,620 INFO L87 Difference]: Start difference. First operand 226 states and 287 transitions. Second operand 12 states. [2020-12-22 08:36:14,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:14,541 INFO L93 Difference]: Finished difference Result 584 states and 813 transitions. [2020-12-22 08:36:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:36:14,542 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-12-22 08:36:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:14,545 INFO L225 Difference]: With dead ends: 584 [2020-12-22 08:36:14,545 INFO L226 Difference]: Without dead ends: 488 [2020-12-22 08:36:14,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:36:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-12-22 08:36:14,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 214. [2020-12-22 08:36:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 08:36:14,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 273 transitions. [2020-12-22 08:36:14,574 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 273 transitions. Word has length 51 [2020-12-22 08:36:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:14,574 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 273 transitions. [2020-12-22 08:36:14,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:36:14,574 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 273 transitions. [2020-12-22 08:36:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 08:36:14,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:14,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:14,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:36:14,576 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:14,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:14,577 INFO L82 PathProgramCache]: Analyzing trace with hash 871420535, now seen corresponding path program 1 times [2020-12-22 08:36:14,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:14,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036212937] [2020-12-22 08:36:14,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:15,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:15,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036212937] [2020-12-22 08:36:15,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:15,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-22 08:36:15,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248639754] [2020-12-22 08:36:15,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 08:36:15,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:15,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 08:36:15,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:36:15,169 INFO L87 Difference]: Start difference. First operand 214 states and 273 transitions. Second operand 19 states. [2020-12-22 08:36:15,402 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-12-22 08:36:15,965 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-22 08:36:17,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:17,471 INFO L93 Difference]: Finished difference Result 402 states and 522 transitions. [2020-12-22 08:36:17,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 08:36:17,471 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-22 08:36:17,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:17,474 INFO L225 Difference]: With dead ends: 402 [2020-12-22 08:36:17,474 INFO L226 Difference]: Without dead ends: 398 [2020-12-22 08:36:17,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=210, Invalid=980, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 08:36:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-12-22 08:36:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 218. [2020-12-22 08:36:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-22 08:36:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 279 transitions. [2020-12-22 08:36:17,504 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 279 transitions. Word has length 52 [2020-12-22 08:36:17,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:17,504 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 279 transitions. [2020-12-22 08:36:17,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 08:36:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 279 transitions. [2020-12-22 08:36:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 08:36:17,505 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:17,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:17,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:36:17,506 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:17,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:17,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1375412663, now seen corresponding path program 1 times [2020-12-22 08:36:17,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:17,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823676645] [2020-12-22 08:36:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:18,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823676645] [2020-12-22 08:36:18,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:18,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-22 08:36:18,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207933039] [2020-12-22 08:36:18,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 08:36:18,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:18,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 08:36:18,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:36:18,081 INFO L87 Difference]: Start difference. First operand 218 states and 279 transitions. Second operand 19 states. [2020-12-22 08:36:18,265 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-12-22 08:36:18,809 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-22 08:36:19,326 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 08:36:20,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:20,234 INFO L93 Difference]: Finished difference Result 469 states and 632 transitions. [2020-12-22 08:36:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-22 08:36:20,235 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-22 08:36:20,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:20,237 INFO L225 Difference]: With dead ends: 469 [2020-12-22 08:36:20,237 INFO L226 Difference]: Without dead ends: 381 [2020-12-22 08:36:20,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:36:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-12-22 08:36:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 225. [2020-12-22 08:36:20,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-12-22 08:36:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 288 transitions. [2020-12-22 08:36:20,266 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 288 transitions. Word has length 52 [2020-12-22 08:36:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:20,267 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 288 transitions. [2020-12-22 08:36:20,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 08:36:20,267 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 288 transitions. [2020-12-22 08:36:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 08:36:20,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:20,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:20,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:36:20,268 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:20,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:20,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1993375358, now seen corresponding path program 1 times [2020-12-22 08:36:20,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:20,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962234230] [2020-12-22 08:36:20,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:20,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962234230] [2020-12-22 08:36:20,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:20,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:36:20,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209578790] [2020-12-22 08:36:20,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:36:20,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:20,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:36:20,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:36:20,732 INFO L87 Difference]: Start difference. First operand 225 states and 288 transitions. Second operand 12 states. [2020-12-22 08:36:21,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:21,653 INFO L93 Difference]: Finished difference Result 456 states and 605 transitions. [2020-12-22 08:36:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:36:21,654 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-12-22 08:36:21,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:21,656 INFO L225 Difference]: With dead ends: 456 [2020-12-22 08:36:21,657 INFO L226 Difference]: Without dead ends: 368 [2020-12-22 08:36:21,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:36:21,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-12-22 08:36:21,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 214. [2020-12-22 08:36:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 08:36:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 274 transitions. [2020-12-22 08:36:21,698 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 274 transitions. Word has length 53 [2020-12-22 08:36:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:21,699 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 274 transitions. [2020-12-22 08:36:21,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:36:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2020-12-22 08:36:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 08:36:21,700 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:21,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:21,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:36:21,701 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:21,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1081508648, now seen corresponding path program 1 times [2020-12-22 08:36:21,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:21,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574418228] [2020-12-22 08:36:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:22,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:22,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574418228] [2020-12-22 08:36:22,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:22,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-22 08:36:22,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353639544] [2020-12-22 08:36:22,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 08:36:22,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:22,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 08:36:22,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2020-12-22 08:36:22,341 INFO L87 Difference]: Start difference. First operand 214 states and 274 transitions. Second operand 16 states. [2020-12-22 08:36:22,835 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-12-22 08:36:23,046 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-12-22 08:36:23,231 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 08:36:23,415 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 08:36:23,628 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-22 08:36:24,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:24,580 INFO L93 Difference]: Finished difference Result 466 states and 612 transitions. [2020-12-22 08:36:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:36:24,581 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2020-12-22 08:36:24,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:24,584 INFO L225 Difference]: With dead ends: 466 [2020-12-22 08:36:24,584 INFO L226 Difference]: Without dead ends: 449 [2020-12-22 08:36:24,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2020-12-22 08:36:24,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-12-22 08:36:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 206. [2020-12-22 08:36:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-12-22 08:36:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 263 transitions. [2020-12-22 08:36:24,618 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 263 transitions. Word has length 53 [2020-12-22 08:36:24,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:24,618 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 263 transitions. [2020-12-22 08:36:24,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 08:36:24,619 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 263 transitions. [2020-12-22 08:36:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 08:36:24,619 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:24,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:24,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:36:24,620 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:24,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:24,621 INFO L82 PathProgramCache]: Analyzing trace with hash -895336457, now seen corresponding path program 1 times [2020-12-22 08:36:24,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:24,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124221546] [2020-12-22 08:36:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:24,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124221546] [2020-12-22 08:36:24,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:24,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:36:24,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244290286] [2020-12-22 08:36:24,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:36:24,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:24,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:36:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:36:24,752 INFO L87 Difference]: Start difference. First operand 206 states and 263 transitions. Second operand 9 states. [2020-12-22 08:36:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:25,220 INFO L93 Difference]: Finished difference Result 354 states and 458 transitions. [2020-12-22 08:36:25,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 08:36:25,220 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-12-22 08:36:25,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:25,223 INFO L225 Difference]: With dead ends: 354 [2020-12-22 08:36:25,223 INFO L226 Difference]: Without dead ends: 346 [2020-12-22 08:36:25,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:36:25,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-22 08:36:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 206. [2020-12-22 08:36:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-12-22 08:36:25,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 262 transitions. [2020-12-22 08:36:25,256 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 262 transitions. Word has length 54 [2020-12-22 08:36:25,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:25,257 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 262 transitions. [2020-12-22 08:36:25,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:36:25,257 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 262 transitions. [2020-12-22 08:36:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 08:36:25,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:25,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:25,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:36:25,258 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:25,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:25,259 INFO L82 PathProgramCache]: Analyzing trace with hash 4832631, now seen corresponding path program 1 times [2020-12-22 08:36:25,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:25,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61693556] [2020-12-22 08:36:25,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:25,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61693556] [2020-12-22 08:36:25,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:25,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:36:25,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284844275] [2020-12-22 08:36:25,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:36:25,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:25,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:36:25,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:36:25,449 INFO L87 Difference]: Start difference. First operand 206 states and 262 transitions. Second operand 10 states. [2020-12-22 08:36:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:26,377 INFO L93 Difference]: Finished difference Result 488 states and 660 transitions. [2020-12-22 08:36:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:36:26,378 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-12-22 08:36:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:26,381 INFO L225 Difference]: With dead ends: 488 [2020-12-22 08:36:26,381 INFO L226 Difference]: Without dead ends: 384 [2020-12-22 08:36:26,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-22 08:36:26,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-12-22 08:36:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 206. [2020-12-22 08:36:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-12-22 08:36:26,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 261 transitions. [2020-12-22 08:36:26,408 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 261 transitions. Word has length 54 [2020-12-22 08:36:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:26,409 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 261 transitions. [2020-12-22 08:36:26,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:36:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 261 transitions. [2020-12-22 08:36:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 08:36:26,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:26,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:26,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:36:26,410 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:26,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:26,410 INFO L82 PathProgramCache]: Analyzing trace with hash -924533993, now seen corresponding path program 1 times [2020-12-22 08:36:26,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:26,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512131885] [2020-12-22 08:36:26,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:26,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512131885] [2020-12-22 08:36:26,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:26,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:36:26,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925136445] [2020-12-22 08:36:26,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:36:26,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:26,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:36:26,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:36:26,601 INFO L87 Difference]: Start difference. First operand 206 states and 261 transitions. Second operand 11 states. [2020-12-22 08:36:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:28,421 INFO L93 Difference]: Finished difference Result 668 states and 901 transitions. [2020-12-22 08:36:28,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:36:28,422 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-12-22 08:36:28,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:28,426 INFO L225 Difference]: With dead ends: 668 [2020-12-22 08:36:28,426 INFO L226 Difference]: Without dead ends: 660 [2020-12-22 08:36:28,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=266, Invalid=726, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:36:28,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2020-12-22 08:36:28,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 211. [2020-12-22 08:36:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-12-22 08:36:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 266 transitions. [2020-12-22 08:36:28,476 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 266 transitions. Word has length 54 [2020-12-22 08:36:28,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:28,476 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 266 transitions. [2020-12-22 08:36:28,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:36:28,477 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 266 transitions. [2020-12-22 08:36:28,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 08:36:28,477 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:28,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:28,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:36:28,478 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:28,478 INFO L82 PathProgramCache]: Analyzing trace with hash 232129054, now seen corresponding path program 1 times [2020-12-22 08:36:28,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:28,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220556976] [2020-12-22 08:36:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:28,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220556976] [2020-12-22 08:36:28,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:28,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:36:28,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177246408] [2020-12-22 08:36:28,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:36:28,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:28,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:36:28,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:36:28,603 INFO L87 Difference]: Start difference. First operand 211 states and 266 transitions. Second operand 9 states. [2020-12-22 08:36:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:29,143 INFO L93 Difference]: Finished difference Result 354 states and 455 transitions. [2020-12-22 08:36:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:36:29,144 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-12-22 08:36:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:29,146 INFO L225 Difference]: With dead ends: 354 [2020-12-22 08:36:29,146 INFO L226 Difference]: Without dead ends: 346 [2020-12-22 08:36:29,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:36:29,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-22 08:36:29,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 206. [2020-12-22 08:36:29,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-12-22 08:36:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions. [2020-12-22 08:36:29,188 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 55 [2020-12-22 08:36:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:29,188 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 260 transitions. [2020-12-22 08:36:29,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:36:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions. [2020-12-22 08:36:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 08:36:29,189 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:29,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:29,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:36:29,190 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:29,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:29,190 INFO L82 PathProgramCache]: Analyzing trace with hash 140596120, now seen corresponding path program 1 times [2020-12-22 08:36:29,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:29,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748722282] [2020-12-22 08:36:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:29,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748722282] [2020-12-22 08:36:29,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:29,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:36:29,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56055319] [2020-12-22 08:36:29,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:36:29,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:29,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:36:29,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:36:29,305 INFO L87 Difference]: Start difference. First operand 206 states and 260 transitions. Second operand 9 states. [2020-12-22 08:36:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:29,981 INFO L93 Difference]: Finished difference Result 357 states and 476 transitions. [2020-12-22 08:36:29,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:36:29,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-12-22 08:36:29,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:29,984 INFO L225 Difference]: With dead ends: 357 [2020-12-22 08:36:29,984 INFO L226 Difference]: Without dead ends: 253 [2020-12-22 08:36:29,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:36:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-12-22 08:36:30,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 206. [2020-12-22 08:36:30,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-12-22 08:36:30,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 259 transitions. [2020-12-22 08:36:30,041 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 259 transitions. Word has length 55 [2020-12-22 08:36:30,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:30,041 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 259 transitions. [2020-12-22 08:36:30,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:36:30,041 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 259 transitions. [2020-12-22 08:36:30,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 08:36:30,042 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:30,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:30,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:36:30,043 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:30,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:30,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1614885916, now seen corresponding path program 1 times [2020-12-22 08:36:30,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:30,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839865248] [2020-12-22 08:36:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:30,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:30,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839865248] [2020-12-22 08:36:30,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:30,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-22 08:36:30,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243911182] [2020-12-22 08:36:30,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 08:36:30,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:30,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 08:36:30,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:36:30,554 INFO L87 Difference]: Start difference. First operand 206 states and 259 transitions. Second operand 18 states. [2020-12-22 08:36:30,725 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-12-22 08:36:31,301 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-22 08:36:32,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:32,568 INFO L93 Difference]: Finished difference Result 428 states and 566 transitions. [2020-12-22 08:36:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 08:36:32,568 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2020-12-22 08:36:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:32,572 INFO L225 Difference]: With dead ends: 428 [2020-12-22 08:36:32,573 INFO L226 Difference]: Without dead ends: 422 [2020-12-22 08:36:32,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=200, Invalid=856, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 08:36:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-22 08:36:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 213. [2020-12-22 08:36:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-22 08:36:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 268 transitions. [2020-12-22 08:36:32,612 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 268 transitions. Word has length 56 [2020-12-22 08:36:32,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:32,613 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 268 transitions. [2020-12-22 08:36:32,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 08:36:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 268 transitions. [2020-12-22 08:36:32,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 08:36:32,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:32,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:32,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:36:32,614 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:32,615 INFO L82 PathProgramCache]: Analyzing trace with hash 897405148, now seen corresponding path program 1 times [2020-12-22 08:36:32,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:32,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647642642] [2020-12-22 08:36:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:33,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647642642] [2020-12-22 08:36:33,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:33,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-22 08:36:33,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922116377] [2020-12-22 08:36:33,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 08:36:33,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:33,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 08:36:33,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:36:33,060 INFO L87 Difference]: Start difference. First operand 213 states and 268 transitions. Second operand 18 states. [2020-12-22 08:36:34,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:34,996 INFO L93 Difference]: Finished difference Result 360 states and 457 transitions. [2020-12-22 08:36:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 08:36:34,997 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2020-12-22 08:36:34,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:34,999 INFO L225 Difference]: With dead ends: 360 [2020-12-22 08:36:34,999 INFO L226 Difference]: Without dead ends: 351 [2020-12-22 08:36:35,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=236, Invalid=954, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 08:36:35,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-12-22 08:36:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 213. [2020-12-22 08:36:35,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-22 08:36:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 267 transitions. [2020-12-22 08:36:35,049 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 267 transitions. Word has length 56 [2020-12-22 08:36:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:35,050 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 267 transitions. [2020-12-22 08:36:35,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 08:36:35,050 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 267 transitions. [2020-12-22 08:36:35,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 08:36:35,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:35,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:35,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:36:35,051 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:35,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:35,052 INFO L82 PathProgramCache]: Analyzing trace with hash -712982628, now seen corresponding path program 1 times [2020-12-22 08:36:35,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:35,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511534822] [2020-12-22 08:36:35,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:35,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:35,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511534822] [2020-12-22 08:36:35,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:35,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-22 08:36:35,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24136829] [2020-12-22 08:36:35,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 08:36:35,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:35,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 08:36:35,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:36:35,586 INFO L87 Difference]: Start difference. First operand 213 states and 267 transitions. Second operand 18 states. [2020-12-22 08:36:35,764 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-12-22 08:36:36,330 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-12-22 08:36:37,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:37,527 INFO L93 Difference]: Finished difference Result 247 states and 299 transitions. [2020-12-22 08:36:37,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 08:36:37,528 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2020-12-22 08:36:37,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:37,530 INFO L225 Difference]: With dead ends: 247 [2020-12-22 08:36:37,530 INFO L226 Difference]: Without dead ends: 238 [2020-12-22 08:36:37,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2020-12-22 08:36:37,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-12-22 08:36:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 219. [2020-12-22 08:36:37,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-12-22 08:36:37,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 273 transitions. [2020-12-22 08:36:37,578 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 273 transitions. Word has length 56 [2020-12-22 08:36:37,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:37,578 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 273 transitions. [2020-12-22 08:36:37,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 08:36:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 273 transitions. [2020-12-22 08:36:37,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 08:36:37,579 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:37,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:37,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:36:37,580 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:37,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:37,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1229531537, now seen corresponding path program 1 times [2020-12-22 08:36:37,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:37,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031921201] [2020-12-22 08:36:37,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:38,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031921201] [2020-12-22 08:36:38,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:38,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-12-22 08:36:38,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517326875] [2020-12-22 08:36:38,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 08:36:38,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:38,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 08:36:38,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-12-22 08:36:38,312 INFO L87 Difference]: Start difference. First operand 219 states and 273 transitions. Second operand 16 states. [2020-12-22 08:36:39,050 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-12-22 08:36:39,220 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-12-22 08:36:39,383 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-12-22 08:36:39,530 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 08:36:41,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:41,273 INFO L93 Difference]: Finished difference Result 990 states and 1379 transitions. [2020-12-22 08:36:41,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 08:36:41,274 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2020-12-22 08:36:41,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:41,281 INFO L225 Difference]: With dead ends: 990 [2020-12-22 08:36:41,281 INFO L226 Difference]: Without dead ends: 984 [2020-12-22 08:36:41,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:36:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-12-22 08:36:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 212. [2020-12-22 08:36:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-22 08:36:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 263 transitions. [2020-12-22 08:36:41,340 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 263 transitions. Word has length 57 [2020-12-22 08:36:41,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:41,341 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 263 transitions. [2020-12-22 08:36:41,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 08:36:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 263 transitions. [2020-12-22 08:36:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 08:36:41,342 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:41,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:41,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:36:41,342 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:41,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1985133879, now seen corresponding path program 1 times [2020-12-22 08:36:41,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:41,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239105504] [2020-12-22 08:36:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:41,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239105504] [2020-12-22 08:36:41,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:41,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 08:36:41,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487574856] [2020-12-22 08:36:41,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-22 08:36:41,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:41,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-22 08:36:41,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:36:41,930 INFO L87 Difference]: Start difference. First operand 212 states and 263 transitions. Second operand 14 states. [2020-12-22 08:36:42,492 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 08:36:42,656 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-12-22 08:36:42,930 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-22 08:36:43,133 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-12-22 08:36:43,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:43,776 INFO L93 Difference]: Finished difference Result 510 states and 690 transitions. [2020-12-22 08:36:43,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:36:43,777 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-12-22 08:36:43,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:43,780 INFO L225 Difference]: With dead ends: 510 [2020-12-22 08:36:43,781 INFO L226 Difference]: Without dead ends: 497 [2020-12-22 08:36:43,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2020-12-22 08:36:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-12-22 08:36:43,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 199. [2020-12-22 08:36:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-12-22 08:36:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 250 transitions. [2020-12-22 08:36:43,826 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 250 transitions. Word has length 57 [2020-12-22 08:36:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:43,826 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 250 transitions. [2020-12-22 08:36:43,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-22 08:36:43,826 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 250 transitions. [2020-12-22 08:36:43,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 08:36:43,826 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:43,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:43,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:36:43,827 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:43,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1082760790, now seen corresponding path program 1 times [2020-12-22 08:36:43,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:43,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971790965] [2020-12-22 08:36:43,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:44,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971790965] [2020-12-22 08:36:44,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:44,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:36:44,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263853122] [2020-12-22 08:36:44,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:36:44,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:44,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:36:44,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:36:44,069 INFO L87 Difference]: Start difference. First operand 199 states and 250 transitions. Second operand 10 states. [2020-12-22 08:36:45,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:45,227 INFO L93 Difference]: Finished difference Result 553 states and 772 transitions. [2020-12-22 08:36:45,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:36:45,228 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-12-22 08:36:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:45,231 INFO L225 Difference]: With dead ends: 553 [2020-12-22 08:36:45,231 INFO L226 Difference]: Without dead ends: 527 [2020-12-22 08:36:45,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:36:45,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-12-22 08:36:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 173. [2020-12-22 08:36:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-12-22 08:36:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 222 transitions. [2020-12-22 08:36:45,285 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 222 transitions. Word has length 57 [2020-12-22 08:36:45,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:45,285 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 222 transitions. [2020-12-22 08:36:45,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:36:45,285 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 222 transitions. [2020-12-22 08:36:45,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 08:36:45,286 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:45,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:45,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:36:45,286 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:45,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:45,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1060387331, now seen corresponding path program 1 times [2020-12-22 08:36:45,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:45,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85746534] [2020-12-22 08:36:45,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:45,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:45,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85746534] [2020-12-22 08:36:45,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:45,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 08:36:45,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754390910] [2020-12-22 08:36:45,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 08:36:45,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:45,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 08:36:45,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-12-22 08:36:45,763 INFO L87 Difference]: Start difference. First operand 173 states and 222 transitions. Second operand 13 states. [2020-12-22 08:36:46,116 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-22 08:36:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:47,594 INFO L93 Difference]: Finished difference Result 659 states and 920 transitions. [2020-12-22 08:36:47,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:36:47,595 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 57 [2020-12-22 08:36:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:47,598 INFO L225 Difference]: With dead ends: 659 [2020-12-22 08:36:47,598 INFO L226 Difference]: Without dead ends: 653 [2020-12-22 08:36:47,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:36:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-12-22 08:36:47,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 180. [2020-12-22 08:36:47,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-22 08:36:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 231 transitions. [2020-12-22 08:36:47,656 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 231 transitions. Word has length 57 [2020-12-22 08:36:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:47,657 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 231 transitions. [2020-12-22 08:36:47,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 08:36:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 231 transitions. [2020-12-22 08:36:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 08:36:47,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:47,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:47,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:36:47,658 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:47,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:47,659 INFO L82 PathProgramCache]: Analyzing trace with hash -99560496, now seen corresponding path program 1 times [2020-12-22 08:36:47,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:47,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659860853] [2020-12-22 08:36:47,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:48,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:48,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659860853] [2020-12-22 08:36:48,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:48,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:36:48,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986187023] [2020-12-22 08:36:48,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:36:48,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:48,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:36:48,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:36:48,005 INFO L87 Difference]: Start difference. First operand 180 states and 231 transitions. Second operand 11 states. [2020-12-22 08:36:48,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:48,740 INFO L93 Difference]: Finished difference Result 487 states and 666 transitions. [2020-12-22 08:36:48,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:36:48,741 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-12-22 08:36:48,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:48,743 INFO L225 Difference]: With dead ends: 487 [2020-12-22 08:36:48,743 INFO L226 Difference]: Without dead ends: 481 [2020-12-22 08:36:48,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:36:48,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-12-22 08:36:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 167. [2020-12-22 08:36:48,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-22 08:36:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 216 transitions. [2020-12-22 08:36:48,799 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 216 transitions. Word has length 58 [2020-12-22 08:36:48,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:48,799 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 216 transitions. [2020-12-22 08:36:48,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:36:48,799 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 216 transitions. [2020-12-22 08:36:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:36:48,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:48,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:48,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:36:48,801 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:48,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1117882514, now seen corresponding path program 1 times [2020-12-22 08:36:48,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:48,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130561312] [2020-12-22 08:36:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:48,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130561312] [2020-12-22 08:36:48,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:48,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:48,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657892950] [2020-12-22 08:36:48,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:48,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:48,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:48,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:48,859 INFO L87 Difference]: Start difference. First operand 167 states and 216 transitions. Second operand 3 states. [2020-12-22 08:36:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:48,985 INFO L93 Difference]: Finished difference Result 327 states and 452 transitions. [2020-12-22 08:36:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:48,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 08:36:48,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:48,987 INFO L225 Difference]: With dead ends: 327 [2020-12-22 08:36:48,988 INFO L226 Difference]: Without dead ends: 243 [2020-12-22 08:36:48,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-12-22 08:36:49,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2020-12-22 08:36:49,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-12-22 08:36:49,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 323 transitions. [2020-12-22 08:36:49,088 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 323 transitions. Word has length 75 [2020-12-22 08:36:49,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:49,089 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 323 transitions. [2020-12-22 08:36:49,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:49,089 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 323 transitions. [2020-12-22 08:36:49,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:36:49,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:49,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:49,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:36:49,090 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:49,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:49,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1016465065, now seen corresponding path program 1 times [2020-12-22 08:36:49,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:49,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128777056] [2020-12-22 08:36:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:49,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:49,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128777056] [2020-12-22 08:36:49,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:49,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:36:49,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245600873] [2020-12-22 08:36:49,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:36:49,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:49,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:36:49,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:49,175 INFO L87 Difference]: Start difference. First operand 241 states and 323 transitions. Second operand 5 states. [2020-12-22 08:36:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:49,462 INFO L93 Difference]: Finished difference Result 731 states and 1045 transitions. [2020-12-22 08:36:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:36:49,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-12-22 08:36:49,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:49,465 INFO L225 Difference]: With dead ends: 731 [2020-12-22 08:36:49,465 INFO L226 Difference]: Without dead ends: 573 [2020-12-22 08:36:49,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-12-22 08:36:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 323. [2020-12-22 08:36:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-12-22 08:36:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 446 transitions. [2020-12-22 08:36:49,606 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 446 transitions. Word has length 77 [2020-12-22 08:36:49,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:49,607 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 446 transitions. [2020-12-22 08:36:49,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:49,607 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 446 transitions. [2020-12-22 08:36:49,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:36:49,608 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:49,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:49,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:36:49,609 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:49,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:49,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1101947074, now seen corresponding path program 1 times [2020-12-22 08:36:49,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:49,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804674037] [2020-12-22 08:36:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:49,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804674037] [2020-12-22 08:36:49,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:49,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:49,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812508155] [2020-12-22 08:36:49,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:49,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:49,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:49,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:49,660 INFO L87 Difference]: Start difference. First operand 323 states and 446 transitions. Second operand 3 states. [2020-12-22 08:36:49,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:49,940 INFO L93 Difference]: Finished difference Result 771 states and 1100 transitions. [2020-12-22 08:36:49,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:49,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 08:36:49,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:49,945 INFO L225 Difference]: With dead ends: 771 [2020-12-22 08:36:49,945 INFO L226 Difference]: Without dead ends: 531 [2020-12-22 08:36:49,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-12-22 08:36:50,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 529. [2020-12-22 08:36:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2020-12-22 08:36:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 735 transitions. [2020-12-22 08:36:50,185 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 735 transitions. Word has length 77 [2020-12-22 08:36:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:50,186 INFO L481 AbstractCegarLoop]: Abstraction has 529 states and 735 transitions. [2020-12-22 08:36:50,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 735 transitions. [2020-12-22 08:36:50,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:36:50,187 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:50,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:50,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:36:50,187 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:50,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:50,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1035453562, now seen corresponding path program 1 times [2020-12-22 08:36:50,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:50,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526044070] [2020-12-22 08:36:50,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:50,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526044070] [2020-12-22 08:36:50,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:50,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:50,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919698718] [2020-12-22 08:36:50,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:50,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:50,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:50,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:50,241 INFO L87 Difference]: Start difference. First operand 529 states and 735 transitions. Second operand 3 states. [2020-12-22 08:36:50,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:50,555 INFO L93 Difference]: Finished difference Result 1277 states and 1813 transitions. [2020-12-22 08:36:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:50,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 08:36:50,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:50,560 INFO L225 Difference]: With dead ends: 1277 [2020-12-22 08:36:50,560 INFO L226 Difference]: Without dead ends: 831 [2020-12-22 08:36:50,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2020-12-22 08:36:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 829. [2020-12-22 08:36:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-12-22 08:36:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1159 transitions. [2020-12-22 08:36:50,879 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1159 transitions. Word has length 77 [2020-12-22 08:36:50,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:50,880 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 1159 transitions. [2020-12-22 08:36:50,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1159 transitions. [2020-12-22 08:36:50,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:36:50,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:50,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:50,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:36:50,882 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:50,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:50,883 INFO L82 PathProgramCache]: Analyzing trace with hash -401787049, now seen corresponding path program 1 times [2020-12-22 08:36:50,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:50,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721172154] [2020-12-22 08:36:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:50,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721172154] [2020-12-22 08:36:50,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:50,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:36:50,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232052335] [2020-12-22 08:36:50,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:36:50,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:50,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:36:50,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:50,963 INFO L87 Difference]: Start difference. First operand 829 states and 1159 transitions. Second operand 5 states. [2020-12-22 08:36:51,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:51,660 INFO L93 Difference]: Finished difference Result 2227 states and 3159 transitions. [2020-12-22 08:36:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:36:51,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-12-22 08:36:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:51,667 INFO L225 Difference]: With dead ends: 2227 [2020-12-22 08:36:51,667 INFO L226 Difference]: Without dead ends: 1783 [2020-12-22 08:36:51,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:51,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2020-12-22 08:36:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1283. [2020-12-22 08:36:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-12-22 08:36:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1807 transitions. [2020-12-22 08:36:52,360 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1807 transitions. Word has length 77 [2020-12-22 08:36:52,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:52,360 INFO L481 AbstractCegarLoop]: Abstraction has 1283 states and 1807 transitions. [2020-12-22 08:36:52,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1807 transitions. [2020-12-22 08:36:52,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:36:52,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:52,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:52,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:36:52,362 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:52,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:52,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1826714967, now seen corresponding path program 1 times [2020-12-22 08:36:52,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:52,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752172932] [2020-12-22 08:36:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:52,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:52,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752172932] [2020-12-22 08:36:52,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:52,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:36:52,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43506668] [2020-12-22 08:36:52,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:36:52,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:52,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:36:52,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:52,476 INFO L87 Difference]: Start difference. First operand 1283 states and 1807 transitions. Second operand 5 states. [2020-12-22 08:36:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:53,478 INFO L93 Difference]: Finished difference Result 2523 states and 3583 transitions. [2020-12-22 08:36:53,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:36:53,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-12-22 08:36:53,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:53,492 INFO L225 Difference]: With dead ends: 2523 [2020-12-22 08:36:53,492 INFO L226 Difference]: Without dead ends: 2079 [2020-12-22 08:36:53,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:53,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2020-12-22 08:36:54,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1585. [2020-12-22 08:36:54,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1585 states. [2020-12-22 08:36:54,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2239 transitions. [2020-12-22 08:36:54,123 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2239 transitions. Word has length 77 [2020-12-22 08:36:54,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:54,124 INFO L481 AbstractCegarLoop]: Abstraction has 1585 states and 2239 transitions. [2020-12-22 08:36:54,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2239 transitions. [2020-12-22 08:36:54,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:36:54,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:54,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:54,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:36:54,126 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash 275968985, now seen corresponding path program 1 times [2020-12-22 08:36:54,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:54,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836527521] [2020-12-22 08:36:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:54,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836527521] [2020-12-22 08:36:54,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:54,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:54,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242193200] [2020-12-22 08:36:54,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:54,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:54,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:54,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:54,178 INFO L87 Difference]: Start difference. First operand 1585 states and 2239 transitions. Second operand 3 states. [2020-12-22 08:36:55,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:55,383 INFO L93 Difference]: Finished difference Result 4029 states and 5708 transitions. [2020-12-22 08:36:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:55,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-22 08:36:55,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:55,394 INFO L225 Difference]: With dead ends: 4029 [2020-12-22 08:36:55,395 INFO L226 Difference]: Without dead ends: 2527 [2020-12-22 08:36:55,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:55,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2020-12-22 08:36:56,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2373. [2020-12-22 08:36:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2373 states. [2020-12-22 08:36:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3311 transitions. [2020-12-22 08:36:56,267 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3311 transitions. Word has length 78 [2020-12-22 08:36:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:56,268 INFO L481 AbstractCegarLoop]: Abstraction has 2373 states and 3311 transitions. [2020-12-22 08:36:56,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3311 transitions. [2020-12-22 08:36:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:36:56,269 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:56,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:56,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:36:56,270 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:56,270 INFO L82 PathProgramCache]: Analyzing trace with hash -163971304, now seen corresponding path program 1 times [2020-12-22 08:36:56,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:56,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424869812] [2020-12-22 08:36:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:56,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424869812] [2020-12-22 08:36:56,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:56,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:56,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690665400] [2020-12-22 08:36:56,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:56,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:56,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:56,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:56,319 INFO L87 Difference]: Start difference. First operand 2373 states and 3311 transitions. Second operand 3 states. [2020-12-22 08:36:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:57,159 INFO L93 Difference]: Finished difference Result 4733 states and 6632 transitions. [2020-12-22 08:36:57,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:57,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 08:36:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:57,167 INFO L225 Difference]: With dead ends: 4733 [2020-12-22 08:36:57,167 INFO L226 Difference]: Without dead ends: 2443 [2020-12-22 08:36:57,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2020-12-22 08:36:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 2441. [2020-12-22 08:36:58,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2441 states. [2020-12-22 08:36:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3372 transitions. [2020-12-22 08:36:58,140 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3372 transitions. Word has length 79 [2020-12-22 08:36:58,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:58,140 INFO L481 AbstractCegarLoop]: Abstraction has 2441 states and 3372 transitions. [2020-12-22 08:36:58,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3372 transitions. [2020-12-22 08:36:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:36:58,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:58,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:58,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:36:58,142 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1432796505, now seen corresponding path program 1 times [2020-12-22 08:36:58,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:58,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447355775] [2020-12-22 08:36:58,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:58,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447355775] [2020-12-22 08:36:58,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:58,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:58,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739668144] [2020-12-22 08:36:58,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:58,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:58,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:58,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:58,205 INFO L87 Difference]: Start difference. First operand 2441 states and 3372 transitions. Second operand 3 states. [2020-12-22 08:36:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:59,821 INFO L93 Difference]: Finished difference Result 6909 states and 9502 transitions. [2020-12-22 08:36:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:59,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 08:36:59,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:59,839 INFO L225 Difference]: With dead ends: 6909 [2020-12-22 08:36:59,839 INFO L226 Difference]: Without dead ends: 4551 [2020-12-22 08:36:59,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:59,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2020-12-22 08:37:01,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 4301. [2020-12-22 08:37:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4301 states. [2020-12-22 08:37:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5847 transitions. [2020-12-22 08:37:01,410 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5847 transitions. Word has length 79 [2020-12-22 08:37:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:37:01,410 INFO L481 AbstractCegarLoop]: Abstraction has 4301 states and 5847 transitions. [2020-12-22 08:37:01,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:37:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5847 transitions. [2020-12-22 08:37:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:37:01,411 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:37:01,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:37:01,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:37:01,412 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:37:01,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:37:01,412 INFO L82 PathProgramCache]: Analyzing trace with hash -21206962, now seen corresponding path program 1 times [2020-12-22 08:37:01,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:37:01,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037940679] [2020-12-22 08:37:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:37:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:01,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037940679] [2020-12-22 08:37:01,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:37:01,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:37:01,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760766047] [2020-12-22 08:37:01,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:37:01,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:37:01,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:37:01,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:37:01,476 INFO L87 Difference]: Start difference. First operand 4301 states and 5847 transitions. Second operand 3 states. [2020-12-22 08:37:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:37:04,394 INFO L93 Difference]: Finished difference Result 12241 states and 16493 transitions. [2020-12-22 08:37:04,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:37:04,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-12-22 08:37:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:37:04,414 INFO L225 Difference]: With dead ends: 12241 [2020-12-22 08:37:04,414 INFO L226 Difference]: Without dead ends: 8023 [2020-12-22 08:37:04,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:37:04,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8023 states. [2020-12-22 08:37:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8023 to 7525. [2020-12-22 08:37:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7525 states. [2020-12-22 08:37:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7525 states to 7525 states and 9991 transitions. [2020-12-22 08:37:07,172 INFO L78 Accepts]: Start accepts. Automaton has 7525 states and 9991 transitions. Word has length 80 [2020-12-22 08:37:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:37:07,172 INFO L481 AbstractCegarLoop]: Abstraction has 7525 states and 9991 transitions. [2020-12-22 08:37:07,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:37:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7525 states and 9991 transitions. [2020-12-22 08:37:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:37:07,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:37:07,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:37:07,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:37:07,179 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:37:07,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:37:07,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1223980109, now seen corresponding path program 1 times [2020-12-22 08:37:07,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:37:07,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862950168] [2020-12-22 08:37:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:37:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:07,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862950168] [2020-12-22 08:37:07,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:37:07,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 08:37:07,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742627070] [2020-12-22 08:37:07,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:37:07,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:37:07,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:37:07,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:37:07,287 INFO L87 Difference]: Start difference. First operand 7525 states and 9991 transitions. Second operand 6 states. [2020-12-22 08:37:11,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:37:11,887 INFO L93 Difference]: Finished difference Result 11247 states and 14871 transitions. [2020-12-22 08:37:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 08:37:11,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2020-12-22 08:37:11,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:37:11,912 INFO L225 Difference]: With dead ends: 11247 [2020-12-22 08:37:11,912 INFO L226 Difference]: Without dead ends: 11245 [2020-12-22 08:37:11,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:37:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11245 states. [2020-12-22 08:37:14,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11245 to 7717. [2020-12-22 08:37:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7717 states. [2020-12-22 08:37:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7717 states to 7717 states and 10103 transitions. [2020-12-22 08:37:14,977 INFO L78 Accepts]: Start accepts. Automaton has 7717 states and 10103 transitions. Word has length 81 [2020-12-22 08:37:14,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:37:14,977 INFO L481 AbstractCegarLoop]: Abstraction has 7717 states and 10103 transitions. [2020-12-22 08:37:14,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:37:14,977 INFO L276 IsEmpty]: Start isEmpty. Operand 7717 states and 10103 transitions. [2020-12-22 08:37:14,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 08:37:14,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:37:14,980 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 08:37:14,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:37:14,981 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:37:14,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:37:14,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1680108859, now seen corresponding path program 1 times [2020-12-22 08:37:14,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:37:14,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165407917] [2020-12-22 08:37:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:37:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:15,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165407917] [2020-12-22 08:37:15,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392071022] [2020-12-22 08:37:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 08:37:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:15,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 08:37:15,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 08:37:15,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 08:37:15,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 08:37:15,986 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 08:37:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:16,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 08:37:16,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-12-22 08:37:16,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167905180] [2020-12-22 08:37:16,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 08:37:16,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:37:16,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 08:37:16,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:37:16,277 INFO L87 Difference]: Start difference. First operand 7717 states and 10103 transitions. Second operand 18 states. [2020-12-22 08:37:21,434 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-22 08:37:23,341 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-12-22 08:37:24,056 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-22 08:37:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:37:49,731 INFO L93 Difference]: Finished difference Result 66663 states and 85802 transitions. [2020-12-22 08:37:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-12-22 08:37:49,732 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 103 [2020-12-22 08:37:49,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:37:49,860 INFO L225 Difference]: With dead ends: 66663 [2020-12-22 08:37:49,860 INFO L226 Difference]: Without dead ends: 59029 [2020-12-22 08:37:49,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2652 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1537, Invalid=6653, Unknown=0, NotChecked=0, Total=8190 [2020-12-22 08:37:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59029 states. [2020-12-22 08:37:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59029 to 16497. [2020-12-22 08:37:57,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16497 states. [2020-12-22 08:37:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16497 states to 16497 states and 21459 transitions. [2020-12-22 08:37:57,876 INFO L78 Accepts]: Start accepts. Automaton has 16497 states and 21459 transitions. Word has length 103 [2020-12-22 08:37:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:37:57,876 INFO L481 AbstractCegarLoop]: Abstraction has 16497 states and 21459 transitions. [2020-12-22 08:37:57,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 08:37:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 16497 states and 21459 transitions. [2020-12-22 08:37:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-22 08:37:57,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:37:57,881 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 08:37:58,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-12-22 08:37:58,092 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:37:58,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:37:58,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1319335917, now seen corresponding path program 1 times [2020-12-22 08:37:58,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:37:58,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450908788] [2020-12-22 08:37:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:37:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:58,371 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:58,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450908788] [2020-12-22 08:37:58,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386616079] [2020-12-22 08:37:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 08:37:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:58,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-22 08:37:58,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 08:37:59,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 08:37:59,494 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:59,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 08:37:59,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2020-12-22 08:37:59,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355876478] [2020-12-22 08:37:59,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 08:37:59,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:37:59,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 08:37:59,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:37:59,496 INFO L87 Difference]: Start difference. First operand 16497 states and 21459 transitions. Second operand 20 states. [2020-12-22 08:37:59,714 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-22 08:38:00,123 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-22 08:38:00,500 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-22 08:38:00,790 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-22 08:38:01,183 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-12-22 08:38:01,515 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-12-22 08:38:01,931 WARN L197 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-12-22 08:38:02,344 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-12-22 08:38:02,855 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-22 08:38:03,171 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-12-22 08:38:03,521 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-12-22 08:38:03,824 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-12-22 08:38:04,315 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2020-12-22 08:38:04,693 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-12-22 08:38:05,162 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-12-22 08:38:05,538 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-12-22 08:38:05,859 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-12-22 08:38:06,226 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-22 08:38:06,643 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-12-22 08:38:07,072 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2020-12-22 08:38:07,437 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-12-22 08:38:07,829 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-12-22 08:38:08,439 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-12-22 08:38:09,472 WARN L197 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-12-22 08:38:09,950 WARN L197 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-12-22 08:38:10,907 WARN L197 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-12-22 08:38:11,434 WARN L197 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-12-22 08:38:12,357 WARN L197 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2020-12-22 08:38:13,704 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-12-22 08:38:14,232 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-12-22 08:38:14,703 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-12-22 08:38:15,899 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-12-22 08:38:17,439 WARN L197 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2020-12-22 08:38:18,060 WARN L197 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2020-12-22 08:38:18,541 WARN L197 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-12-22 08:38:19,975 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-12-22 08:38:21,191 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2020-12-22 08:38:21,798 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-12-22 08:38:22,415 WARN L197 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-12-22 08:38:22,825 WARN L197 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-12-22 08:38:23,363 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2020-12-22 08:38:24,779 WARN L197 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-12-22 08:38:25,914 WARN L197 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-12-22 08:38:27,361 WARN L197 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2020-12-22 08:38:28,684 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-12-22 08:38:30,035 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2020-12-22 08:38:30,778 WARN L197 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2020-12-22 08:38:31,427 WARN L197 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2020-12-22 08:38:31,937 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-22 08:38:32,525 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-12-22 08:38:33,967 WARN L197 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-12-22 08:38:34,757 WARN L197 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-12-22 08:38:35,236 WARN L197 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-12-22 08:38:36,076 WARN L197 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-12-22 08:38:36,831 WARN L197 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2020-12-22 08:38:38,329 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2020-12-22 08:38:39,739 WARN L197 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-12-22 08:38:41,038 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2020-12-22 08:38:42,816 WARN L197 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-12-22 08:38:44,298 WARN L197 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-12-22 08:38:46,258 WARN L197 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2020-12-22 08:38:47,679 WARN L197 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2020-12-22 08:38:49,830 WARN L197 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2020-12-22 08:38:52,596 WARN L197 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2020-12-22 08:38:53,553 WARN L197 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-12-22 08:38:54,264 WARN L197 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-12-22 08:38:55,860 WARN L197 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-12-22 08:38:56,984 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-12-22 08:38:58,230 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2020-12-22 08:38:59,074 WARN L197 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2020-12-22 08:38:59,994 WARN L197 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-12-22 08:39:00,994 WARN L197 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-12-22 08:39:02,950 WARN L197 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-12-22 08:39:05,057 WARN L197 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-12-22 08:39:06,133 WARN L197 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-12-22 08:39:07,079 WARN L197 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-12-22 08:39:09,482 WARN L197 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2020-12-22 08:39:11,811 WARN L197 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-12-22 08:39:14,332 WARN L197 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-12-22 08:39:17,207 WARN L197 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-12-22 08:39:19,328 WARN L197 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 08:39:22,721 WARN L197 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-12-22 08:39:24,986 WARN L197 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2020-12-22 08:39:30,705 WARN L197 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-12-22 08:39:36,617 WARN L197 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 120 DAG size of output: 110 [2020-12-22 08:39:42,663 WARN L197 SmtUtils]: Spent 5.63 s on a formula simplification. DAG size of input: 123 DAG size of output: 113 [2020-12-22 08:39:44,476 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2020-12-22 08:39:46,254 WARN L197 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2020-12-22 08:39:48,273 WARN L197 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-12-22 08:39:50,906 WARN L197 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-12-22 08:39:54,214 WARN L197 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-12-22 08:39:57,149 WARN L197 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-12-22 08:39:58,449 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-12-22 08:39:59,948 WARN L197 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-12-22 08:40:02,451 WARN L197 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-12-22 08:40:03,490 WARN L197 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-12-22 08:40:04,701 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-12-22 08:40:09,147 WARN L197 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 105 DAG size of output: 96