/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:18:33,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:18:33,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:18:33,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:18:33,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:18:33,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:18:33,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:18:33,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:18:33,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:18:33,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:18:33,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:18:33,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:18:33,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:18:33,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:18:33,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:18:33,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:18:33,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:18:33,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:18:33,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:18:33,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:18:33,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:18:33,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:18:33,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:18:33,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:18:33,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 05:18:33,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:18:33,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:18:33,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:18:33,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:18:33,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:18:33,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:18:33,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:18:33,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:18:33,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:18:33,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:18:33,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:18:33,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:18:33,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:18:33,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:18:33,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:18:33,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:18:33,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:18:33,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:18:33,227 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:18:33,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:18:33,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:18:33,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:18:33,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:18:33,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:18:33,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:18:33,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:18:33,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:18:33,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:18:33,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:18:33,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:18:33,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:18:33,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:18:33,230 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:18:33,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:18:33,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:18:33,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:18:33,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:18:33,231 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:18:33,231 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:18:33,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:18:33,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:18:33,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:18:33,440 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:18:33,440 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:18:33,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i [2022-01-11 05:18:33,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f025dd3a/f5a14b9545004ad8a543be4f40f50ee2/FLAG492d9036b [2022-01-11 05:18:33,885 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:18:33,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i [2022-01-11 05:18:33,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f025dd3a/f5a14b9545004ad8a543be4f40f50ee2/FLAG492d9036b [2022-01-11 05:18:33,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f025dd3a/f5a14b9545004ad8a543be4f40f50ee2 [2022-01-11 05:18:33,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:18:33,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:18:33,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:18:33,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:18:33,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:18:33,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:18:33" (1/1) ... [2022-01-11 05:18:33,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa4ba12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:33, skipping insertion in model container [2022-01-11 05:18:33,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:18:33" (1/1) ... [2022-01-11 05:18:33,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:18:33,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:18:34,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i[22636,22649] [2022-01-11 05:18:34,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:18:34,204 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:18:34,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-2.i[22636,22649] [2022-01-11 05:18:34,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:18:34,254 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:18:34,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34 WrapperNode [2022-01-11 05:18:34,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:18:34,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:18:34,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:18:34,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:18:34,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,296 INFO L137 Inliner]: procedures = 130, calls = 79, calls flagged for inlining = 24, calls inlined = 38, statements flattened = 472 [2022-01-11 05:18:34,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:18:34,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:18:34,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:18:34,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:18:34,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:18:34,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:18:34,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:18:34,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:18:34,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:34,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:18:34,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:18:34,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:18:34,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:18:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 05:18:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:18:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 05:18:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-11 05:18:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-11 05:18:34,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 05:18:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-11 05:18:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:18:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:18:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:18:34,484 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:18:34,485 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:18:34,957 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:18:34,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:18:34,965 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2022-01-11 05:18:34,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:18:34 BoogieIcfgContainer [2022-01-11 05:18:34,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:18:34,969 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:18:34,969 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:18:34,971 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:18:34,974 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:18:34" (1/1) ... [2022-01-11 05:18:35,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:18:35 BasicIcfg [2022-01-11 05:18:35,107 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:18:35,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:18:35,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:18:35,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:18:35,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:18:33" (1/4) ... [2022-01-11 05:18:35,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49914a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:18:35, skipping insertion in model container [2022-01-11 05:18:35,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:18:34" (2/4) ... [2022-01-11 05:18:35,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49914a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:18:35, skipping insertion in model container [2022-01-11 05:18:35,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:18:34" (3/4) ... [2022-01-11 05:18:35,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49914a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:18:35, skipping insertion in model container [2022-01-11 05:18:35,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:18:35" (4/4) ... [2022-01-11 05:18:35,112 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev-2.iTransformedIcfg [2022-01-11 05:18:35,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:18:35,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-01-11 05:18:35,160 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:18:35,168 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:18:35,168 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-01-11 05:18:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 150 states have (on average 1.7866666666666666) internal successors, (268), 170 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-11 05:18:35,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:18:35,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:18:35,183 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:18:35,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:18:35,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1901873988, now seen corresponding path program 1 times [2022-01-11 05:18:35,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:18:35,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701016104] [2022-01-11 05:18:35,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:35,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:18:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:18:35,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:18:35,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701016104] [2022-01-11 05:18:35,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701016104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:18:35,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:18:35,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:18:35,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540561666] [2022-01-11 05:18:35,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:18:35,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:18:35,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:18:35,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:18:35,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:18:35,418 INFO L87 Difference]: Start difference. First operand has 171 states, 150 states have (on average 1.7866666666666666) internal successors, (268), 170 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:35,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:18:35,460 INFO L93 Difference]: Finished difference Result 320 states and 514 transitions. [2022-01-11 05:18:35,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:18:35,462 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-01-11 05:18:35,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:18:35,472 INFO L225 Difference]: With dead ends: 320 [2022-01-11 05:18:35,472 INFO L226 Difference]: Without dead ends: 145 [2022-01-11 05:18:35,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:18:35,488 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:18:35,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:18:35,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-01-11 05:18:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2022-01-11 05:18:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 125 states have (on average 1.248) internal successors, (156), 144 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 156 transitions. [2022-01-11 05:18:35,517 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 156 transitions. Word has length 13 [2022-01-11 05:18:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:18:35,518 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 156 transitions. [2022-01-11 05:18:35,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 156 transitions. [2022-01-11 05:18:35,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 05:18:35,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:18:35,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:18:35,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:18:35,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:18:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:18:35,521 INFO L85 PathProgramCache]: Analyzing trace with hash -279909858, now seen corresponding path program 1 times [2022-01-11 05:18:35,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:18:35,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158752689] [2022-01-11 05:18:35,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:35,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:18:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:18:36,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:18:36,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158752689] [2022-01-11 05:18:36,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158752689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:18:36,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:18:36,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-11 05:18:36,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427419573] [2022-01-11 05:18:36,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:18:36,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-11 05:18:36,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:18:36,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-11 05:18:36,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:18:36,548 INFO L87 Difference]: Start difference. First operand 145 states and 156 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:18:37,173 INFO L93 Difference]: Finished difference Result 241 states and 259 transitions. [2022-01-11 05:18:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:18:37,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-01-11 05:18:37,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:18:37,175 INFO L225 Difference]: With dead ends: 241 [2022-01-11 05:18:37,175 INFO L226 Difference]: Without dead ends: 237 [2022-01-11 05:18:37,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-01-11 05:18:37,176 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 188 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:18:37,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 695 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:18:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-01-11 05:18:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 149. [2022-01-11 05:18:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 130 states have (on average 1.2384615384615385) internal successors, (161), 148 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:37,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 161 transitions. [2022-01-11 05:18:37,186 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 161 transitions. Word has length 28 [2022-01-11 05:18:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:18:37,186 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 161 transitions. [2022-01-11 05:18:37,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:37,186 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 161 transitions. [2022-01-11 05:18:37,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 05:18:37,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:18:37,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:18:37,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:18:37,189 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:18:37,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:18:37,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1589621158, now seen corresponding path program 1 times [2022-01-11 05:18:37,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:18:37,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871207819] [2022-01-11 05:18:37,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:37,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:18:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:18:37,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:18:37,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871207819] [2022-01-11 05:18:37,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871207819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:18:37,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:18:37,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-11 05:18:37,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571359364] [2022-01-11 05:18:37,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:18:37,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-11 05:18:37,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:18:37,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-11 05:18:37,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-01-11 05:18:37,927 INFO L87 Difference]: Start difference. First operand 149 states and 161 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:18:38,449 INFO L93 Difference]: Finished difference Result 319 states and 345 transitions. [2022-01-11 05:18:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-11 05:18:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-01-11 05:18:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:18:38,451 INFO L225 Difference]: With dead ends: 319 [2022-01-11 05:18:38,451 INFO L226 Difference]: Without dead ends: 315 [2022-01-11 05:18:38,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-01-11 05:18:38,452 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 381 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:18:38,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1084 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:18:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-01-11 05:18:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 198. [2022-01-11 05:18:38,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 179 states have (on average 1.217877094972067) internal successors, (218), 197 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 218 transitions. [2022-01-11 05:18:38,464 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 218 transitions. Word has length 30 [2022-01-11 05:18:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:18:38,464 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 218 transitions. [2022-01-11 05:18:38,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 218 transitions. [2022-01-11 05:18:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 05:18:38,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:18:38,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:18:38,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:18:38,474 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:18:38,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:18:38,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1311976044, now seen corresponding path program 1 times [2022-01-11 05:18:38,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:18:38,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624322848] [2022-01-11 05:18:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:38,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:18:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:18:39,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:18:39,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624322848] [2022-01-11 05:18:39,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624322848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:18:39,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:18:39,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-11 05:18:39,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934596001] [2022-01-11 05:18:39,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:18:39,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-11 05:18:39,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:18:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-11 05:18:39,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-01-11 05:18:39,542 INFO L87 Difference]: Start difference. First operand 198 states and 218 transitions. Second operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:40,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:18:40,906 INFO L93 Difference]: Finished difference Result 433 states and 473 transitions. [2022-01-11 05:18:40,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:18:40,907 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-01-11 05:18:40,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:18:40,910 INFO L225 Difference]: With dead ends: 433 [2022-01-11 05:18:40,910 INFO L226 Difference]: Without dead ends: 429 [2022-01-11 05:18:40,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2022-01-11 05:18:40,912 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 299 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:18:40,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 1526 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:18:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-01-11 05:18:40,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 246. [2022-01-11 05:18:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 227 states have (on average 1.2114537444933922) internal successors, (275), 245 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 275 transitions. [2022-01-11 05:18:40,934 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 275 transitions. Word has length 34 [2022-01-11 05:18:40,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:18:40,934 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 275 transitions. [2022-01-11 05:18:40,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 275 transitions. [2022-01-11 05:18:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 05:18:40,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:18:40,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:18:40,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:18:40,935 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:18:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:18:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1910444951, now seen corresponding path program 1 times [2022-01-11 05:18:40,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:18:40,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833697849] [2022-01-11 05:18:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:40,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:18:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:41,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:18:41,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:18:41,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833697849] [2022-01-11 05:18:41,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833697849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:18:41,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:18:41,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-11 05:18:41,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203623739] [2022-01-11 05:18:41,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:18:41,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-11 05:18:41,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:18:41,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-11 05:18:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-01-11 05:18:41,882 INFO L87 Difference]: Start difference. First operand 246 states and 275 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:43,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:18:43,124 INFO L93 Difference]: Finished difference Result 336 states and 371 transitions. [2022-01-11 05:18:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-11 05:18:43,125 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-01-11 05:18:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:18:43,127 INFO L225 Difference]: With dead ends: 336 [2022-01-11 05:18:43,127 INFO L226 Difference]: Without dead ends: 334 [2022-01-11 05:18:43,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-01-11 05:18:43,128 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 205 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:18:43,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 1311 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:18:43,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-01-11 05:18:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 244. [2022-01-11 05:18:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 226 states have (on average 1.1991150442477876) internal successors, (271), 243 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 271 transitions. [2022-01-11 05:18:43,150 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 271 transitions. Word has length 36 [2022-01-11 05:18:43,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:18:43,150 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 271 transitions. [2022-01-11 05:18:43,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:43,150 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 271 transitions. [2022-01-11 05:18:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 05:18:43,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:18:43,151 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:18:43,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:18:43,151 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:18:43,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:18:43,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1407207343, now seen corresponding path program 1 times [2022-01-11 05:18:43,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:18:43,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030905136] [2022-01-11 05:18:43,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:43,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:18:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:18:43,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:18:43,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030905136] [2022-01-11 05:18:43,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030905136] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:18:43,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885611420] [2022-01-11 05:18:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:43,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:18:43,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:18:43,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 05:18:43,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 05:18:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:43,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 96 conjunts are in the unsatisfiable core [2022-01-11 05:18:43,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:18:44,373 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-11 05:18:44,374 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-11 05:18:44,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:18:44,386 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-11 05:18:44,413 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-01-11 05:18:44,418 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-01-11 05:18:44,437 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-01-11 05:18:44,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:18:44,555 INFO L353 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-01-11 05:18:44,556 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-01-11 05:18:44,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:44,728 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-01-11 05:18:44,728 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-01-11 05:18:44,741 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-01-11 05:18:44,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:44,846 INFO L353 Elim1Store]: treesize reduction 52, result has 46.4 percent of original size [2022-01-11 05:18:44,847 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 102 [2022-01-11 05:18:44,854 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:18:44,877 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2022-01-11 05:18:44,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2022-01-11 05:18:44,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:44,993 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-01-11 05:18:45,027 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-11 05:18:45,067 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-11 05:18:45,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:45,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2022-01-11 05:18:45,087 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-11 05:18:45,121 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-11 05:18:45,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 33 [2022-01-11 05:18:45,125 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2022-01-11 05:18:45,134 INFO L353 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-01-11 05:18:45,134 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 44 [2022-01-11 05:18:45,140 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-01-11 05:18:45,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:18:45,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:18:45,283 INFO L353 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-01-11 05:18:45,283 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 45 [2022-01-11 05:18:45,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:45,543 INFO L353 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-01-11 05:18:45,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 63 [2022-01-11 05:18:45,601 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-01-11 05:18:45,622 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2022-01-11 05:18:45,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:45,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:18:45,731 INFO L353 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-01-11 05:18:45,732 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 60 [2022-01-11 05:18:52,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:18:52,957 INFO L353 Elim1Store]: treesize reduction 24, result has 63.1 percent of original size [2022-01-11 05:18:52,958 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 125 treesize of output 100 [2022-01-11 05:18:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 05:18:53,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 05:18:53,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885611420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:18:53,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-11 05:18:53,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 28 [2022-01-11 05:18:53,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006676485] [2022-01-11 05:18:53,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:18:53,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-11 05:18:53,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:18:53,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-11 05:18:53,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=659, Unknown=2, NotChecked=0, Total=756 [2022-01-11 05:18:53,068 INFO L87 Difference]: Start difference. First operand 244 states and 271 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:18:53,880 INFO L93 Difference]: Finished difference Result 316 states and 350 transitions. [2022-01-11 05:18:53,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:18:53,881 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-01-11 05:18:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:18:53,882 INFO L225 Difference]: With dead ends: 316 [2022-01-11 05:18:53,882 INFO L226 Difference]: Without dead ends: 314 [2022-01-11 05:18:53,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=205, Invalid=1275, Unknown=2, NotChecked=0, Total=1482 [2022-01-11 05:18:53,883 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 99 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 166 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:18:53,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1494 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 331 Invalid, 0 Unknown, 166 Unchecked, 0.3s Time] [2022-01-11 05:18:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-01-11 05:18:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 264. [2022-01-11 05:18:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 246 states have (on average 1.1910569105691058) internal successors, (293), 263 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:53,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 293 transitions. [2022-01-11 05:18:53,897 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 293 transitions. Word has length 36 [2022-01-11 05:18:53,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:18:53,897 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 293 transitions. [2022-01-11 05:18:53,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:18:53,897 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 293 transitions. [2022-01-11 05:18:53,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 05:18:53,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:18:53,902 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 05:18:53,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 05:18:54,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-11 05:18:54,112 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:18:54,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:18:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1330538382, now seen corresponding path program 1 times [2022-01-11 05:18:54,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:18:54,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695000584] [2022-01-11 05:18:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:54,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:18:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:18:55,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:18:55,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695000584] [2022-01-11 05:18:55,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695000584] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:18:55,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410456195] [2022-01-11 05:18:55,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:18:55,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:18:55,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:18:55,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 05:18:55,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 05:18:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:18:56,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 178 conjunts are in the unsatisfiable core [2022-01-11 05:18:56,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:18:56,205 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-11 05:18:56,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 35 [2022-01-11 05:18:56,581 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-11 05:18:56,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-11 05:18:56,606 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-11 05:18:56,606 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-11 05:18:56,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:18:56,622 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-11 05:18:56,635 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:18:56,646 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:18:56,687 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-11 05:18:56,702 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-01-11 05:18:56,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-01-11 05:18:56,778 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-11 05:18:56,784 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-11 05:18:56,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-01-11 05:18:56,905 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2022-01-11 05:18:56,914 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2022-01-11 05:18:56,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-11 05:18:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,186 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-01-11 05:18:57,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,199 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2022-01-11 05:18:57,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,320 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2022-01-11 05:18:57,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,328 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2022-01-11 05:18:57,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:18:57,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 28 [2022-01-11 05:18:57,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-01-11 05:18:57,348 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-11 05:18:57,583 INFO L353 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-01-11 05:18:57,583 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 53 [2022-01-11 05:18:57,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,591 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 42 [2022-01-11 05:18:57,759 INFO L353 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-01-11 05:18:57,760 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2022-01-11 05:18:57,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,989 INFO L353 Elim1Store]: treesize reduction 39, result has 11.4 percent of original size [2022-01-11 05:18:57,989 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 94 treesize of output 88 [2022-01-11 05:18:57,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,001 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 52 [2022-01-11 05:18:58,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,232 INFO L353 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2022-01-11 05:18:58,233 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 97 treesize of output 88 [2022-01-11 05:18:58,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:58,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 50 [2022-01-11 05:18:58,252 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 56 [2022-01-11 05:18:59,962 INFO L353 Elim1Store]: treesize reduction 33, result has 8.3 percent of original size [2022-01-11 05:18:59,962 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 114 treesize of output 56 [2022-01-11 05:18:59,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:59,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:59,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:59,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:59,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:18:59,980 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-01-11 05:18:59,980 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 34 [2022-01-11 05:19:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 05:19:00,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 05:19:00,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410456195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:19:00,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-11 05:19:00,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [18] total 30 [2022-01-11 05:19:00,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623065121] [2022-01-11 05:19:00,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:19:00,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-11 05:19:00,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:19:00,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-11 05:19:00,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2022-01-11 05:19:00,038 INFO L87 Difference]: Start difference. First operand 264 states and 293 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:19:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:19:02,094 INFO L93 Difference]: Finished difference Result 443 states and 489 transitions. [2022-01-11 05:19:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:19:02,095 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-11 05:19:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:19:02,097 INFO L225 Difference]: With dead ends: 443 [2022-01-11 05:19:02,097 INFO L226 Difference]: Without dead ends: 304 [2022-01-11 05:19:02,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=218, Invalid=1422, Unknown=0, NotChecked=0, Total=1640 [2022-01-11 05:19:02,098 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 79 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:19:02,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 1327 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 354 Invalid, 0 Unknown, 115 Unchecked, 0.5s Time] [2022-01-11 05:19:02,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-01-11 05:19:02,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 262. [2022-01-11 05:19:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 244 states have (on average 1.180327868852459) internal successors, (288), 261 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:19:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 288 transitions. [2022-01-11 05:19:02,116 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 288 transitions. Word has length 38 [2022-01-11 05:19:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:19:02,117 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 288 transitions. [2022-01-11 05:19:02,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:19:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 288 transitions. [2022-01-11 05:19:02,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:19:02,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:19:02,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:19:02,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-11 05:19:02,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-01-11 05:19:02,335 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:19:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:19:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1455631970, now seen corresponding path program 1 times [2022-01-11 05:19:02,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:19:02,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077409224] [2022-01-11 05:19:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:19:02,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:19:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:19:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:19:04,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:19:04,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077409224] [2022-01-11 05:19:04,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077409224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:19:04,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:19:04,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-11 05:19:04,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907970667] [2022-01-11 05:19:04,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:19:04,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-11 05:19:04,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:19:04,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-11 05:19:04,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2022-01-11 05:19:04,022 INFO L87 Difference]: Start difference. First operand 262 states and 288 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:19:08,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:19:08,738 INFO L93 Difference]: Finished difference Result 562 states and 615 transitions. [2022-01-11 05:19:08,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-11 05:19:08,738 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-11 05:19:08,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:19:08,740 INFO L225 Difference]: With dead ends: 562 [2022-01-11 05:19:08,740 INFO L226 Difference]: Without dead ends: 560 [2022-01-11 05:19:08,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=265, Invalid=1217, Unknown=0, NotChecked=0, Total=1482 [2022-01-11 05:19:08,741 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 485 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:19:08,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 2273 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-11 05:19:08,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-01-11 05:19:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 306. [2022-01-11 05:19:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 288 states have (on average 1.1666666666666667) internal successors, (336), 305 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:19:08,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 336 transitions. [2022-01-11 05:19:08,766 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 336 transitions. Word has length 39 [2022-01-11 05:19:08,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:19:08,766 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 336 transitions. [2022-01-11 05:19:08,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:19:08,766 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 336 transitions. [2022-01-11 05:19:08,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 05:19:08,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:19:08,767 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:19:08,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:19:08,767 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2022-01-11 05:19:08,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:19:08,767 INFO L85 PathProgramCache]: Analyzing trace with hash -665023903, now seen corresponding path program 1 times [2022-01-11 05:19:08,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:19:08,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287830065] [2022-01-11 05:19:08,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:19:08,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:19:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:19:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:19:10,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:19:10,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287830065] [2022-01-11 05:19:10,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287830065] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 05:19:10,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089323365] [2022-01-11 05:19:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:19:10,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 05:19:10,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:19:10,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 05:19:10,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 05:19:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:19:10,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 169 conjunts are in the unsatisfiable core [2022-01-11 05:19:10,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 05:19:10,585 INFO L353 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-01-11 05:19:10,585 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-01-11 05:19:10,590 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:19:10,596 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-11 05:19:10,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2022-01-11 05:19:10,616 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-01-11 05:19:10,634 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-01-11 05:19:10,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:10,735 INFO L353 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-01-11 05:19:10,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-01-11 05:19:10,822 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-11 05:19:10,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:10,945 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-01-11 05:19:10,945 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-01-11 05:19:10,953 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-01-11 05:19:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,060 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-01-11 05:19:11,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,067 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2022-01-11 05:19:11,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,073 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2022-01-11 05:19:11,077 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2022-01-11 05:19:11,082 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-11 05:19:11,088 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:19:11,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:11,226 INFO L353 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-01-11 05:19:11,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2022-01-11 05:19:11,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:11,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:11,249 INFO L353 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-01-11 05:19:11,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 37 [2022-01-11 05:19:11,346 INFO L353 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-01-11 05:19:11,346 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2022-01-11 05:19:11,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,488 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-11 05:19:11,488 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2022-01-11 05:19:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,505 INFO L353 Elim1Store]: treesize reduction 39, result has 11.4 percent of original size [2022-01-11 05:19:11,506 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 50 [2022-01-11 05:19:11,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:11,601 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-11 05:19:11,601 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 34 [2022-01-11 05:19:11,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:11,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:11,628 INFO L353 Elim1Store]: treesize reduction 78, result has 19.6 percent of original size [2022-01-11 05:19:11,628 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 74 treesize of output 50 [2022-01-11 05:19:11,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:11,647 INFO L353 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-01-11 05:19:11,648 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 49 [2022-01-11 05:19:11,698 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-11 05:19:12,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:12,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:12,191 INFO L353 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-01-11 05:19:12,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 121 treesize of output 112 [2022-01-11 05:19:12,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:12,217 INFO L353 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-01-11 05:19:12,217 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 42 [2022-01-11 05:19:12,233 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-11 05:19:12,443 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2022-01-11 05:19:12,479 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-01-11 05:19:12,531 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2022-01-11 05:19:12,586 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2022-01-11 05:19:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:13,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:13,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:13,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:13,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:13,198 INFO L353 Elim1Store]: treesize reduction 31, result has 53.0 percent of original size [2022-01-11 05:19:13,198 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 70 [2022-01-11 05:19:13,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:13,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 05:19:13,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:13,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:13,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 05:19:13,392 INFO L353 Elim1Store]: treesize reduction 209, result has 39.9 percent of original size [2022-01-11 05:19:13,392 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 20 case distinctions, treesize of input 368 treesize of output 294 [2022-01-11 05:19:14,642 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-11 05:19:14,695 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7