/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_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:11:06,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:11:06,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:11:06,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:11:06,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:11:06,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:11:06,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:11:06,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:11:06,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:11:06,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:11:06,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:11:06,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:11:06,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:11:06,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:11:06,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:11:06,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:11:06,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:11:06,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:11:06,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:11:06,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:11:06,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:11:06,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:11:06,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:11:06,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:11:06,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 14:11:06,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 14:11:06,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 14:11:06,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 14:11:06,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 14:11:06,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 14:11:06,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 14:11:06,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 14:11:06,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 14:11:06,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:11:06,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:11:06,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:11:06,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 14:11:06,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:11:06,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:11:06,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:11:06,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:11:06,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:11:06,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:11:06,999 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:11:06,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:11:06,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:11:06,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:11:06,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:11:06,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:11:07,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:11:07,000 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:11:07,000 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:11:07,000 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:11:07,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:11:07,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:11:07,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:11:07,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:11:07,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:11:07,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:11:07,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:11:07,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:11:07,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:11:07,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:11:07,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:11:07,002 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:11:07,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:11:07,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:11:07,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:11:07,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:11:07,004 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:11:07,004 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:11:07,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:11:07,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:11:07,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:11:07,261 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:11:07,261 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:11:07,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-1.c [2022-01-10 14:11:07,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9fd4b49/c309ad502ad24c20b6a745a51ff91a3e/FLAG121e4a233 [2022-01-10 14:11:07,797 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:11:07,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-1.c [2022-01-10 14:11:07,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9fd4b49/c309ad502ad24c20b6a745a51ff91a3e/FLAG121e4a233 [2022-01-10 14:11:07,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9fd4b49/c309ad502ad24c20b6a745a51ff91a3e [2022-01-10 14:11:07,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:11:07,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:11:07,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:11:07,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:11:07,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:11:07,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:11:07" (1/1) ... [2022-01-10 14:11:07,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb8b9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:07, skipping insertion in model container [2022-01-10 14:11:07,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:11:07" (1/1) ... [2022-01-10 14:11:07,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:11:07,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:11:08,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-1.c[913,926] [2022-01-10 14:11:08,189 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-1.c[5977,5990] [2022-01-10 14:11:08,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:11:08,361 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:11:08,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-1.c[913,926] [2022-01-10 14:11:08,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-1.c[5977,5990] [2022-01-10 14:11:08,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:11:08,466 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:11:08,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08 WrapperNode [2022-01-10 14:11:08,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:11:08,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:11:08,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:11:08,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:11:08,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,612 INFO L137 Inliner]: procedures = 73, calls = 85, calls flagged for inlining = 80, calls inlined = 289, statements flattened = 4399 [2022-01-10 14:11:08,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:11:08,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:11:08,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:11:08,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:11:08,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:11:08,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:11:08,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:11:08,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:11:08,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (1/1) ... [2022-01-10 14:11:08,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:11:08,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:11:08,795 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) [2022-01-10 14:11:08,804 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 [2022-01-10 14:11:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:11:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:11:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:11:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:11:09,012 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:11:09,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:11:11,138 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:11:11,152 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:11:11,152 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2022-01-10 14:11:11,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:11:11 BoogieIcfgContainer [2022-01-10 14:11:11,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:11:11,156 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:11:11,156 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:11:11,157 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:11:11,159 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:11:11" (1/1) ... [2022-01-10 14:11:11,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:11:11 BasicIcfg [2022-01-10 14:11:11,493 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:11:11,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:11:11,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:11:11,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:11:11,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:11:07" (1/4) ... [2022-01-10 14:11:11,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa208ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:11:11, skipping insertion in model container [2022-01-10 14:11:11,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:11:08" (2/4) ... [2022-01-10 14:11:11,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa208ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:11:11, skipping insertion in model container [2022-01-10 14:11:11,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:11:11" (3/4) ... [2022-01-10 14:11:11,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa208ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:11:11, skipping insertion in model container [2022-01-10 14:11:11,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:11:11" (4/4) ... [2022-01-10 14:11:11,500 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.12.cil-1.cTransformedIcfg [2022-01-10 14:11:11,504 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:11:11,504 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 14:11:11,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:11:11,559 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 [2022-01-10 14:11:11,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 14:11:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 1879 states, 1874 states have (on average 1.503735325506937) internal successors, (2818), 1878 states have internal predecessors, (2818), 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) [2022-01-10 14:11:11,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 14:11:11,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:11,599 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] [2022-01-10 14:11:11,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:11,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash -176383202, now seen corresponding path program 1 times [2022-01-10 14:11:11,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:11,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465359914] [2022-01-10 14:11:11,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:11,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:11,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:11,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465359914] [2022-01-10 14:11:11,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465359914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:11,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:11,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:11,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352041936] [2022-01-10 14:11:11,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:11,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:11,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:11,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:11,958 INFO L87 Difference]: Start difference. First operand has 1879 states, 1874 states have (on average 1.503735325506937) internal successors, (2818), 1878 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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) [2022-01-10 14:11:12,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:12,153 INFO L93 Difference]: Finished difference Result 3656 states and 5461 transitions. [2022-01-10 14:11:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:12,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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 [2022-01-10 14:11:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:12,173 INFO L225 Difference]: With dead ends: 3656 [2022-01-10 14:11:12,173 INFO L226 Difference]: Without dead ends: 1933 [2022-01-10 14:11:12,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:12,182 INFO L933 BasicCegarLoop]: 2782 mSDtfsCounter, 2743 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:12,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2743 Valid, 2876 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:12,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2022-01-10 14:11:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1912. [2022-01-10 14:11:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1908 states have (on average 1.480083857442348) internal successors, (2824), 1911 states have internal predecessors, (2824), 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) [2022-01-10 14:11:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2824 transitions. [2022-01-10 14:11:12,285 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2824 transitions. Word has length 36 [2022-01-10 14:11:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:12,285 INFO L470 AbstractCegarLoop]: Abstraction has 1912 states and 2824 transitions. [2022-01-10 14:11:12,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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) [2022-01-10 14:11:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2824 transitions. [2022-01-10 14:11:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 14:11:12,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:12,291 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] [2022-01-10 14:11:12,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:11:12,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:12,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:12,293 INFO L85 PathProgramCache]: Analyzing trace with hash -411400193, now seen corresponding path program 1 times [2022-01-10 14:11:12,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:12,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723483309] [2022-01-10 14:11:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:12,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:12,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:12,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:12,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723483309] [2022-01-10 14:11:12,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723483309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:12,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:12,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:12,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915230901] [2022-01-10 14:11:12,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:12,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:12,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:12,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:12,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:12,399 INFO L87 Difference]: Start difference. First operand 1912 states and 2824 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-01-10 14:11:12,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:12,472 INFO L93 Difference]: Finished difference Result 2081 states and 3059 transitions. [2022-01-10 14:11:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:12,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2022-01-10 14:11:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:12,480 INFO L225 Difference]: With dead ends: 2081 [2022-01-10 14:11:12,480 INFO L226 Difference]: Without dead ends: 1970 [2022-01-10 14:11:12,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:12,482 INFO L933 BasicCegarLoop]: 2762 mSDtfsCounter, 60 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 5485 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:12,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 5485 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:12,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-01-10 14:11:12,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1965. [2022-01-10 14:11:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1961 states have (on average 1.4773074961754207) internal successors, (2897), 1964 states have internal predecessors, (2897), 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) [2022-01-10 14:11:12,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2897 transitions. [2022-01-10 14:11:12,523 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2897 transitions. Word has length 37 [2022-01-10 14:11:12,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:12,524 INFO L470 AbstractCegarLoop]: Abstraction has 1965 states and 2897 transitions. [2022-01-10 14:11:12,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-01-10 14:11:12,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2897 transitions. [2022-01-10 14:11:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 14:11:12,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:12,530 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] [2022-01-10 14:11:12,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:11:12,533 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:12,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:12,534 INFO L85 PathProgramCache]: Analyzing trace with hash -565697026, now seen corresponding path program 1 times [2022-01-10 14:11:12,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:12,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975002977] [2022-01-10 14:11:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:12,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:12,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:12,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975002977] [2022-01-10 14:11:12,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975002977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:12,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:12,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:12,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37761863] [2022-01-10 14:11:12,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:12,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:12,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:12,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:12,599 INFO L87 Difference]: Start difference. First operand 1965 states and 2897 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-01-10 14:11:12,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:12,701 INFO L93 Difference]: Finished difference Result 2282 states and 3333 transitions. [2022-01-10 14:11:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:12,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2022-01-10 14:11:12,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:12,710 INFO L225 Difference]: With dead ends: 2282 [2022-01-10 14:11:12,710 INFO L226 Difference]: Without dead ends: 2118 [2022-01-10 14:11:12,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:12,712 INFO L933 BasicCegarLoop]: 2785 mSDtfsCounter, 2734 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:12,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2734 Valid, 2873 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:12,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2022-01-10 14:11:12,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 2096. [2022-01-10 14:11:12,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 2092 states have (on average 1.4689292543021033) internal successors, (3073), 2095 states have internal predecessors, (3073), 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) [2022-01-10 14:11:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 3073 transitions. [2022-01-10 14:11:12,765 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 3073 transitions. Word has length 37 [2022-01-10 14:11:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:12,766 INFO L470 AbstractCegarLoop]: Abstraction has 2096 states and 3073 transitions. [2022-01-10 14:11:12,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-01-10 14:11:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 3073 transitions. [2022-01-10 14:11:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 14:11:12,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:12,767 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:12,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 14:11:12,768 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1638365307, now seen corresponding path program 1 times [2022-01-10 14:11:12,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165918366] [2022-01-10 14:11:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:12,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:12,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:12,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165918366] [2022-01-10 14:11:12,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165918366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:12,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:12,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:12,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770999540] [2022-01-10 14:11:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:12,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:12,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:12,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:12,854 INFO L87 Difference]: Start difference. First operand 2096 states and 3073 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-01-10 14:11:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:12,931 INFO L93 Difference]: Finished difference Result 2547 states and 3680 transitions. [2022-01-10 14:11:12,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:12,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-01-10 14:11:12,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:12,941 INFO L225 Difference]: With dead ends: 2547 [2022-01-10 14:11:12,941 INFO L226 Difference]: Without dead ends: 2252 [2022-01-10 14:11:12,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:12,951 INFO L933 BasicCegarLoop]: 2815 mSDtfsCounter, 48 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5565 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:12,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 5565 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:12,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-01-10 14:11:13,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2252. [2022-01-10 14:11:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2248 states have (on average 1.4506227758007118) internal successors, (3261), 2251 states have internal predecessors, (3261), 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) [2022-01-10 14:11:13,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3261 transitions. [2022-01-10 14:11:13,013 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3261 transitions. Word has length 51 [2022-01-10 14:11:13,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:13,013 INFO L470 AbstractCegarLoop]: Abstraction has 2252 states and 3261 transitions. [2022-01-10 14:11:13,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-01-10 14:11:13,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3261 transitions. [2022-01-10 14:11:13,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 14:11:13,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:13,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:13,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 14:11:13,015 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:13,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:13,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1481808314, now seen corresponding path program 1 times [2022-01-10 14:11:13,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:13,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99680372] [2022-01-10 14:11:13,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:13,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:13,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:13,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99680372] [2022-01-10 14:11:13,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99680372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:13,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:13,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:13,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215449252] [2022-01-10 14:11:13,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:13,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:13,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:13,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:13,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:13,087 INFO L87 Difference]: Start difference. First operand 2252 states and 3261 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-01-10 14:11:13,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:13,157 INFO L93 Difference]: Finished difference Result 2725 states and 3877 transitions. [2022-01-10 14:11:13,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:13,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2022-01-10 14:11:13,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:13,166 INFO L225 Difference]: With dead ends: 2725 [2022-01-10 14:11:13,166 INFO L226 Difference]: Without dead ends: 2360 [2022-01-10 14:11:13,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:13,168 INFO L933 BasicCegarLoop]: 2762 mSDtfsCounter, 2708 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2708 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:13,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2708 Valid, 2850 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-01-10 14:11:13,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2360. [2022-01-10 14:11:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 2356 states have (on average 1.4384550084889642) internal successors, (3389), 2359 states have internal predecessors, (3389), 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) [2022-01-10 14:11:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3389 transitions. [2022-01-10 14:11:13,268 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3389 transitions. Word has length 55 [2022-01-10 14:11:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:13,268 INFO L470 AbstractCegarLoop]: Abstraction has 2360 states and 3389 transitions. [2022-01-10 14:11:13,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-01-10 14:11:13,269 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3389 transitions. [2022-01-10 14:11:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 14:11:13,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:13,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:13,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 14:11:13,271 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:13,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash -972314080, now seen corresponding path program 1 times [2022-01-10 14:11:13,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:13,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749558114] [2022-01-10 14:11:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:13,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:13,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:13,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749558114] [2022-01-10 14:11:13,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749558114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:13,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:13,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:11:13,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312196237] [2022-01-10 14:11:13,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:13,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:11:13,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:13,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:11:13,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:11:13,365 INFO L87 Difference]: Start difference. First operand 2360 states and 3389 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-01-10 14:11:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:13,537 INFO L93 Difference]: Finished difference Result 3443 states and 4793 transitions. [2022-01-10 14:11:13,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:11:13,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 56 [2022-01-10 14:11:13,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:13,548 INFO L225 Difference]: With dead ends: 3443 [2022-01-10 14:11:13,548 INFO L226 Difference]: Without dead ends: 3020 [2022-01-10 14:11:13,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:11:13,553 INFO L933 BasicCegarLoop]: 2835 mSDtfsCounter, 302 mSDsluCounter, 8423 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 11258 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:13,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 11258 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2022-01-10 14:11:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2384. [2022-01-10 14:11:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2380 states have (on average 1.4323529411764706) internal successors, (3409), 2383 states have internal predecessors, (3409), 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) [2022-01-10 14:11:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3409 transitions. [2022-01-10 14:11:13,645 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3409 transitions. Word has length 56 [2022-01-10 14:11:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:13,646 INFO L470 AbstractCegarLoop]: Abstraction has 2384 states and 3409 transitions. [2022-01-10 14:11:13,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-01-10 14:11:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3409 transitions. [2022-01-10 14:11:13,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 14:11:13,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:13,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:13,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 14:11:13,648 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:13,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:13,648 INFO L85 PathProgramCache]: Analyzing trace with hash -621514143, now seen corresponding path program 1 times [2022-01-10 14:11:13,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:13,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9841569] [2022-01-10 14:11:13,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:13,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:13,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:13,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:13,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9841569] [2022-01-10 14:11:13,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9841569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:13,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:13,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:11:13,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077797978] [2022-01-10 14:11:13,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:13,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:11:13,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:13,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:11:13,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:11:13,712 INFO L87 Difference]: Start difference. First operand 2384 states and 3409 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-01-10 14:11:13,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:13,884 INFO L93 Difference]: Finished difference Result 3173 states and 4419 transitions. [2022-01-10 14:11:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:11:13,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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 56 [2022-01-10 14:11:13,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:13,893 INFO L225 Difference]: With dead ends: 3173 [2022-01-10 14:11:13,893 INFO L226 Difference]: Without dead ends: 2675 [2022-01-10 14:11:13,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:11:13,895 INFO L933 BasicCegarLoop]: 2812 mSDtfsCounter, 276 mSDsluCounter, 8392 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 11204 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:13,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 11204 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2022-01-10 14:11:13,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2282. [2022-01-10 14:11:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2278 states have (on average 1.4389815627743634) internal successors, (3278), 2281 states have internal predecessors, (3278), 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) [2022-01-10 14:11:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3278 transitions. [2022-01-10 14:11:13,976 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3278 transitions. Word has length 56 [2022-01-10 14:11:13,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:13,976 INFO L470 AbstractCegarLoop]: Abstraction has 2282 states and 3278 transitions. [2022-01-10 14:11:13,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-01-10 14:11:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3278 transitions. [2022-01-10 14:11:13,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 14:11:13,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:13,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:13,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 14:11:13,978 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:13,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1596273601, now seen corresponding path program 1 times [2022-01-10 14:11:13,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:13,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614617095] [2022-01-10 14:11:13,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:13,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:14,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:14,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614617095] [2022-01-10 14:11:14,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614617095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:14,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:14,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:11:14,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51820675] [2022-01-10 14:11:14,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:14,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:11:14,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:14,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:11:14,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:11:14,075 INFO L87 Difference]: Start difference. First operand 2282 states and 3278 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-01-10 14:11:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:14,222 INFO L93 Difference]: Finished difference Result 2332 states and 3338 transitions. [2022-01-10 14:11:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:11:14,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-01-10 14:11:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:14,232 INFO L225 Difference]: With dead ends: 2332 [2022-01-10 14:11:14,232 INFO L226 Difference]: Without dead ends: 2330 [2022-01-10 14:11:14,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:11:14,234 INFO L933 BasicCegarLoop]: 2762 mSDtfsCounter, 5492 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5492 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:14,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5492 Valid, 2831 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:14,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2022-01-10 14:11:14,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2280. [2022-01-10 14:11:14,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2280 states, 2277 states have (on average 1.438296003513395) internal successors, (3275), 2279 states have internal predecessors, (3275), 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) [2022-01-10 14:11:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3275 transitions. [2022-01-10 14:11:14,366 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3275 transitions. Word has length 56 [2022-01-10 14:11:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:14,366 INFO L470 AbstractCegarLoop]: Abstraction has 2280 states and 3275 transitions. [2022-01-10 14:11:14,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-01-10 14:11:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3275 transitions. [2022-01-10 14:11:14,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 14:11:14,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:14,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:14,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 14:11:14,368 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:14,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:14,369 INFO L85 PathProgramCache]: Analyzing trace with hash -2055119878, now seen corresponding path program 1 times [2022-01-10 14:11:14,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:14,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083826023] [2022-01-10 14:11:14,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:14,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:14,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:14,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083826023] [2022-01-10 14:11:14,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083826023] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:11:14,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518915133] [2022-01-10 14:11:14,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:14,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:11:14,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:11:14,579 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) [2022-01-10 14:11:14,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 14:11:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:14,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 14:11:14,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:11:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:15,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:11:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:15,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518915133] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:11:15,380 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:11:15,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-10 14:11:15,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109243110] [2022-01-10 14:11:15,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:11:15,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 14:11:15,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:15,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 14:11:15,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:11:15,382 INFO L87 Difference]: Start difference. First operand 2280 states and 3275 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 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) [2022-01-10 14:11:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:15,755 INFO L93 Difference]: Finished difference Result 3166 states and 4403 transitions. [2022-01-10 14:11:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 14:11:15,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 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 57 [2022-01-10 14:11:15,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:15,767 INFO L225 Difference]: With dead ends: 3166 [2022-01-10 14:11:15,767 INFO L226 Difference]: Without dead ends: 3164 [2022-01-10 14:11:15,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:11:15,768 INFO L933 BasicCegarLoop]: 2837 mSDtfsCounter, 8436 mSDsluCounter, 8751 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8436 SdHoareTripleChecker+Valid, 11588 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:15,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8436 Valid, 11588 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:15,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2022-01-10 14:11:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 2552. [2022-01-10 14:11:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2549 states have (on average 1.4233032561788936) internal successors, (3628), 2551 states have internal predecessors, (3628), 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) [2022-01-10 14:11:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3628 transitions. [2022-01-10 14:11:15,953 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3628 transitions. Word has length 57 [2022-01-10 14:11:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:15,953 INFO L470 AbstractCegarLoop]: Abstraction has 2552 states and 3628 transitions. [2022-01-10 14:11:15,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 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) [2022-01-10 14:11:15,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3628 transitions. [2022-01-10 14:11:15,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 14:11:15,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:15,955 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:15,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 14:11:16,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:11:16,180 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:16,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:16,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1559204522, now seen corresponding path program 2 times [2022-01-10 14:11:16,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:16,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387728510] [2022-01-10 14:11:16,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:16,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:16,228 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:16,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:16,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387728510] [2022-01-10 14:11:16,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387728510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:16,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:16,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:16,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522205581] [2022-01-10 14:11:16,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:16,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:16,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:16,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:16,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:16,230 INFO L87 Difference]: Start difference. First operand 2552 states and 3628 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2022-01-10 14:11:16,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:16,392 INFO L93 Difference]: Finished difference Result 3059 states and 4288 transitions. [2022-01-10 14:11:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:16,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2022-01-10 14:11:16,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:16,401 INFO L225 Difference]: With dead ends: 3059 [2022-01-10 14:11:16,401 INFO L226 Difference]: Without dead ends: 2463 [2022-01-10 14:11:16,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:16,403 INFO L933 BasicCegarLoop]: 2796 mSDtfsCounter, 2712 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:16,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2712 Valid, 2865 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2022-01-10 14:11:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2437. [2022-01-10 14:11:16,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2434 states have (on average 1.4281018898931799) internal successors, (3476), 2436 states have internal predecessors, (3476), 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) [2022-01-10 14:11:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3476 transitions. [2022-01-10 14:11:16,536 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3476 transitions. Word has length 72 [2022-01-10 14:11:16,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:16,537 INFO L470 AbstractCegarLoop]: Abstraction has 2437 states and 3476 transitions. [2022-01-10 14:11:16,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2022-01-10 14:11:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3476 transitions. [2022-01-10 14:11:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 14:11:16,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:16,540 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:16,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 14:11:16,541 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash 848611532, now seen corresponding path program 1 times [2022-01-10 14:11:16,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:16,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583787389] [2022-01-10 14:11:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:16,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:11:16,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:16,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583787389] [2022-01-10 14:11:16,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583787389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:16,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:16,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:16,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419234214] [2022-01-10 14:11:16,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:16,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:16,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:16,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:16,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:16,607 INFO L87 Difference]: Start difference. First operand 2437 states and 3476 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:11:16,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:16,754 INFO L93 Difference]: Finished difference Result 3091 states and 4303 transitions. [2022-01-10 14:11:16,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:16,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-10 14:11:16,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:16,776 INFO L225 Difference]: With dead ends: 3091 [2022-01-10 14:11:16,776 INFO L226 Difference]: Without dead ends: 2455 [2022-01-10 14:11:16,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:16,778 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 2697 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:16,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2697 Valid, 2853 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:16,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2022-01-10 14:11:16,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2437. [2022-01-10 14:11:16,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2434 states have (on average 1.419884963023829) internal successors, (3456), 2436 states have internal predecessors, (3456), 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) [2022-01-10 14:11:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3456 transitions. [2022-01-10 14:11:16,925 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3456 transitions. Word has length 84 [2022-01-10 14:11:16,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:16,925 INFO L470 AbstractCegarLoop]: Abstraction has 2437 states and 3456 transitions. [2022-01-10 14:11:16,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:11:16,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3456 transitions. [2022-01-10 14:11:16,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 14:11:16,930 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:16,930 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:16,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 14:11:16,930 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:16,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:16,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1399297825, now seen corresponding path program 1 times [2022-01-10 14:11:16,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:16,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918798650] [2022-01-10 14:11:16,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:16,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:11:16,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:16,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918798650] [2022-01-10 14:11:16,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918798650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:16,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:16,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:16,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012905072] [2022-01-10 14:11:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:16,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:16,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:16,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:16,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:16,989 INFO L87 Difference]: Start difference. First operand 2437 states and 3456 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:11:17,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:17,146 INFO L93 Difference]: Finished difference Result 2701 states and 3774 transitions. [2022-01-10 14:11:17,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:17,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-10 14:11:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:17,150 INFO L225 Difference]: With dead ends: 2701 [2022-01-10 14:11:17,151 INFO L226 Difference]: Without dead ends: 1795 [2022-01-10 14:11:17,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:17,153 INFO L933 BasicCegarLoop]: 2795 mSDtfsCounter, 56 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:17,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 5522 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:17,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2022-01-10 14:11:17,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1795. [2022-01-10 14:11:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.483547127718907) internal successors, (2660), 1794 states have internal predecessors, (2660), 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) [2022-01-10 14:11:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2660 transitions. [2022-01-10 14:11:17,242 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2660 transitions. Word has length 85 [2022-01-10 14:11:17,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:17,242 INFO L470 AbstractCegarLoop]: Abstraction has 1795 states and 2660 transitions. [2022-01-10 14:11:17,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:11:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2660 transitions. [2022-01-10 14:11:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:17,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:17,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:17,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 14:11:17,245 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:17,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1578430486, now seen corresponding path program 1 times [2022-01-10 14:11:17,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:17,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178218000] [2022-01-10 14:11:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:17,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:17,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:17,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178218000] [2022-01-10 14:11:17,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178218000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:17,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:17,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:17,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139680334] [2022-01-10 14:11:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:17,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:17,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:17,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:17,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:17,299 INFO L87 Difference]: Start difference. First operand 1795 states and 2660 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2022-01-10 14:11:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:17,380 INFO L93 Difference]: Finished difference Result 3584 states and 5313 transitions. [2022-01-10 14:11:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:17,385 INFO L225 Difference]: With dead ends: 3584 [2022-01-10 14:11:17,385 INFO L226 Difference]: Without dead ends: 1795 [2022-01-10 14:11:17,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:17,389 INFO L933 BasicCegarLoop]: 2658 mSDtfsCounter, 2654 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:17,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2654 Valid, 2659 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2022-01-10 14:11:17,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1795. [2022-01-10 14:11:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.482989403234802) internal successors, (2659), 1794 states have internal predecessors, (2659), 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) [2022-01-10 14:11:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2659 transitions. [2022-01-10 14:11:17,471 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2659 transitions. Word has length 165 [2022-01-10 14:11:17,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:17,472 INFO L470 AbstractCegarLoop]: Abstraction has 1795 states and 2659 transitions. [2022-01-10 14:11:17,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2022-01-10 14:11:17,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2659 transitions. [2022-01-10 14:11:17,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:17,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:17,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:17,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 14:11:17,474 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:17,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:17,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1971429431, now seen corresponding path program 1 times [2022-01-10 14:11:17,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:17,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414605139] [2022-01-10 14:11:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:17,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:17,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:17,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414605139] [2022-01-10 14:11:17,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414605139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:17,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:17,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:17,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527489119] [2022-01-10 14:11:17,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:17,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:17,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:17,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:17,528 INFO L87 Difference]: Start difference. First operand 1795 states and 2659 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2022-01-10 14:11:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:17,617 INFO L93 Difference]: Finished difference Result 3575 states and 5294 transitions. [2022-01-10 14:11:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:17,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:17,621 INFO L225 Difference]: With dead ends: 3575 [2022-01-10 14:11:17,622 INFO L226 Difference]: Without dead ends: 1795 [2022-01-10 14:11:17,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:17,625 INFO L933 BasicCegarLoop]: 2657 mSDtfsCounter, 2644 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:17,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2644 Valid, 2658 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:17,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2022-01-10 14:11:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1795. [2022-01-10 14:11:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.4824316787506973) internal successors, (2658), 1794 states have internal predecessors, (2658), 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) [2022-01-10 14:11:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2658 transitions. [2022-01-10 14:11:17,699 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2658 transitions. Word has length 165 [2022-01-10 14:11:17,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:17,699 INFO L470 AbstractCegarLoop]: Abstraction has 1795 states and 2658 transitions. [2022-01-10 14:11:17,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2022-01-10 14:11:17,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2658 transitions. [2022-01-10 14:11:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:17,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:17,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:17,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 14:11:17,701 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:17,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1248138998, now seen corresponding path program 1 times [2022-01-10 14:11:17,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:17,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895852089] [2022-01-10 14:11:17,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:17,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:17,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:17,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895852089] [2022-01-10 14:11:17,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895852089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:17,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:17,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:17,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962965203] [2022-01-10 14:11:17,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:17,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:17,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:17,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:17,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:17,780 INFO L87 Difference]: Start difference. First operand 1795 states and 2658 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:17,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:17,944 INFO L93 Difference]: Finished difference Result 5108 states and 7543 transitions. [2022-01-10 14:11:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:17,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:17,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:17,952 INFO L225 Difference]: With dead ends: 5108 [2022-01-10 14:11:17,952 INFO L226 Difference]: Without dead ends: 3333 [2022-01-10 14:11:17,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:17,957 INFO L933 BasicCegarLoop]: 2652 mSDtfsCounter, 2501 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 5037 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:17,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2501 Valid, 5037 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:17,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2022-01-10 14:11:18,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 3329. [2022-01-10 14:11:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4761045987376014) internal successors, (4911), 3328 states have internal predecessors, (4911), 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) [2022-01-10 14:11:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4911 transitions. [2022-01-10 14:11:18,102 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4911 transitions. Word has length 165 [2022-01-10 14:11:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:18,102 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4911 transitions. [2022-01-10 14:11:18,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:18,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4911 transitions. [2022-01-10 14:11:18,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:18,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:18,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:18,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 14:11:18,104 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:18,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:18,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1349110762, now seen corresponding path program 1 times [2022-01-10 14:11:18,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:18,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659331300] [2022-01-10 14:11:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:18,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:18,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:18,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659331300] [2022-01-10 14:11:18,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659331300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:18,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:18,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:18,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460413477] [2022-01-10 14:11:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:18,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:18,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:18,162 INFO L87 Difference]: Start difference. First operand 3329 states and 4911 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:18,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:18,315 INFO L93 Difference]: Finished difference Result 6637 states and 9789 transitions. [2022-01-10 14:11:18,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:18,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:18,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:18,322 INFO L225 Difference]: With dead ends: 6637 [2022-01-10 14:11:18,322 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:18,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:18,326 INFO L933 BasicCegarLoop]: 2646 mSDtfsCounter, 2631 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2631 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:18,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2631 Valid, 2646 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4737000300571086) internal successors, (4903), 3328 states have internal predecessors, (4903), 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) [2022-01-10 14:11:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4903 transitions. [2022-01-10 14:11:18,508 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4903 transitions. Word has length 165 [2022-01-10 14:11:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:18,508 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4903 transitions. [2022-01-10 14:11:18,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4903 transitions. [2022-01-10 14:11:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:18,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:18,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:18,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 14:11:18,510 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:18,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1060958966, now seen corresponding path program 1 times [2022-01-10 14:11:18,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:18,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951069945] [2022-01-10 14:11:18,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:18,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:18,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:18,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951069945] [2022-01-10 14:11:18,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951069945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:18,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:18,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:18,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274260175] [2022-01-10 14:11:18,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:18,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:18,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:18,565 INFO L87 Difference]: Start difference. First operand 3329 states and 4903 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:18,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:18,724 INFO L93 Difference]: Finished difference Result 6636 states and 9772 transitions. [2022-01-10 14:11:18,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:18,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:18,732 INFO L225 Difference]: With dead ends: 6636 [2022-01-10 14:11:18,732 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:18,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:18,738 INFO L933 BasicCegarLoop]: 2641 mSDtfsCounter, 2625 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2625 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:18,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2625 Valid, 2641 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:18,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:18,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4712954613766156) internal successors, (4895), 3328 states have internal predecessors, (4895), 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) [2022-01-10 14:11:18,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4895 transitions. [2022-01-10 14:11:18,946 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4895 transitions. Word has length 165 [2022-01-10 14:11:18,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:18,946 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4895 transitions. [2022-01-10 14:11:18,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4895 transitions. [2022-01-10 14:11:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:18,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:18,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:18,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 14:11:18,948 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:18,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:18,949 INFO L85 PathProgramCache]: Analyzing trace with hash 307419158, now seen corresponding path program 1 times [2022-01-10 14:11:18,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:18,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262200023] [2022-01-10 14:11:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:18,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:19,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:19,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262200023] [2022-01-10 14:11:19,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262200023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:19,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:19,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:19,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843267957] [2022-01-10 14:11:19,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:19,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:19,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:19,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:19,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:19,009 INFO L87 Difference]: Start difference. First operand 3329 states and 4895 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:19,196 INFO L93 Difference]: Finished difference Result 6635 states and 9755 transitions. [2022-01-10 14:11:19,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:19,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:19,203 INFO L225 Difference]: With dead ends: 6635 [2022-01-10 14:11:19,203 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:19,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:19,208 INFO L933 BasicCegarLoop]: 2636 mSDtfsCounter, 2619 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2619 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:19,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2619 Valid, 2636 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:19,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4688908926961226) internal successors, (4887), 3328 states have internal predecessors, (4887), 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) [2022-01-10 14:11:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4887 transitions. [2022-01-10 14:11:19,386 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4887 transitions. Word has length 165 [2022-01-10 14:11:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:19,386 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4887 transitions. [2022-01-10 14:11:19,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4887 transitions. [2022-01-10 14:11:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:19,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:19,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:19,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 14:11:19,388 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash 6016758, now seen corresponding path program 1 times [2022-01-10 14:11:19,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:19,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093376039] [2022-01-10 14:11:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:19,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:19,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:19,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093376039] [2022-01-10 14:11:19,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093376039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:19,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:19,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:19,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112767453] [2022-01-10 14:11:19,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:19,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:19,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:19,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:19,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:19,452 INFO L87 Difference]: Start difference. First operand 3329 states and 4887 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:19,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:19,687 INFO L93 Difference]: Finished difference Result 6633 states and 9736 transitions. [2022-01-10 14:11:19,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:19,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:19,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:19,694 INFO L225 Difference]: With dead ends: 6633 [2022-01-10 14:11:19,694 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:19,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:19,699 INFO L933 BasicCegarLoop]: 2631 mSDtfsCounter, 2612 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:19,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2612 Valid, 2631 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4664863240156296) internal successors, (4879), 3328 states have internal predecessors, (4879), 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) [2022-01-10 14:11:19,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4879 transitions. [2022-01-10 14:11:19,874 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4879 transitions. Word has length 165 [2022-01-10 14:11:19,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:19,875 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4879 transitions. [2022-01-10 14:11:19,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:19,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4879 transitions. [2022-01-10 14:11:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:19,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:19,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:19,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 14:11:19,877 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1878326742, now seen corresponding path program 1 times [2022-01-10 14:11:19,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:19,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391478308] [2022-01-10 14:11:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:19,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:19,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:19,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391478308] [2022-01-10 14:11:19,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391478308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:19,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:19,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:19,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651796316] [2022-01-10 14:11:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:19,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:19,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:19,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:19,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:19,928 INFO L87 Difference]: Start difference. First operand 3329 states and 4879 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:20,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:20,100 INFO L93 Difference]: Finished difference Result 6632 states and 9719 transitions. [2022-01-10 14:11:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:20,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:20,109 INFO L225 Difference]: With dead ends: 6632 [2022-01-10 14:11:20,110 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:20,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:20,117 INFO L933 BasicCegarLoop]: 2626 mSDtfsCounter, 2606 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:20,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2606 Valid, 2626 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:20,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4640817553351368) internal successors, (4871), 3328 states have internal predecessors, (4871), 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) [2022-01-10 14:11:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4871 transitions. [2022-01-10 14:11:20,312 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4871 transitions. Word has length 165 [2022-01-10 14:11:20,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:20,313 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4871 transitions. [2022-01-10 14:11:20,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4871 transitions. [2022-01-10 14:11:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:20,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:20,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:20,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 14:11:20,315 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:20,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:20,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1661629174, now seen corresponding path program 1 times [2022-01-10 14:11:20,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:20,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660678087] [2022-01-10 14:11:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:20,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:20,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:20,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:20,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660678087] [2022-01-10 14:11:20,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660678087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:20,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:20,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:20,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315184335] [2022-01-10 14:11:20,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:20,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:20,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:20,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:20,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:20,358 INFO L87 Difference]: Start difference. First operand 3329 states and 4871 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:20,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:20,534 INFO L93 Difference]: Finished difference Result 6631 states and 9702 transitions. [2022-01-10 14:11:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:20,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:20,542 INFO L225 Difference]: With dead ends: 6631 [2022-01-10 14:11:20,542 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:20,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:20,547 INFO L933 BasicCegarLoop]: 2621 mSDtfsCounter, 2600 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:20,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2600 Valid, 2621 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:20,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:20,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4616771866546439) internal successors, (4863), 3328 states have internal predecessors, (4863), 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) [2022-01-10 14:11:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4863 transitions. [2022-01-10 14:11:20,715 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4863 transitions. Word has length 165 [2022-01-10 14:11:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:20,715 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4863 transitions. [2022-01-10 14:11:20,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4863 transitions. [2022-01-10 14:11:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:20,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:20,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:20,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 14:11:20,718 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1793186262, now seen corresponding path program 1 times [2022-01-10 14:11:20,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:20,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112265712] [2022-01-10 14:11:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:20,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:20,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:20,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:20,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112265712] [2022-01-10 14:11:20,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112265712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:20,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:20,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:20,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433896293] [2022-01-10 14:11:20,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:20,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:20,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:20,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:20,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:20,776 INFO L87 Difference]: Start difference. First operand 3329 states and 4863 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:20,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:20,956 INFO L93 Difference]: Finished difference Result 6630 states and 9685 transitions. [2022-01-10 14:11:20,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:20,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:20,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:20,965 INFO L225 Difference]: With dead ends: 6630 [2022-01-10 14:11:20,965 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:20,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:20,970 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 2594 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:20,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2594 Valid, 2616 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:21,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4592726179741509) internal successors, (4855), 3328 states have internal predecessors, (4855), 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) [2022-01-10 14:11:21,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4855 transitions. [2022-01-10 14:11:21,153 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4855 transitions. Word has length 165 [2022-01-10 14:11:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:21,153 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4855 transitions. [2022-01-10 14:11:21,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4855 transitions. [2022-01-10 14:11:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:21,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:21,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:21,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 14:11:21,155 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash 689051382, now seen corresponding path program 1 times [2022-01-10 14:11:21,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:21,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416366664] [2022-01-10 14:11:21,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:21,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:21,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:21,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416366664] [2022-01-10 14:11:21,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416366664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:21,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:21,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:21,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691251560] [2022-01-10 14:11:21,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:21,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:21,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:21,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:21,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:21,198 INFO L87 Difference]: Start difference. First operand 3329 states and 4855 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:21,394 INFO L93 Difference]: Finished difference Result 6629 states and 9668 transitions. [2022-01-10 14:11:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:21,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:21,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:21,401 INFO L225 Difference]: With dead ends: 6629 [2022-01-10 14:11:21,401 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:21,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:21,405 INFO L933 BasicCegarLoop]: 2611 mSDtfsCounter, 2588 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2588 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:21,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2588 Valid, 2611 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:21,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:21,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4568680492936579) internal successors, (4847), 3328 states have internal predecessors, (4847), 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) [2022-01-10 14:11:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4847 transitions. [2022-01-10 14:11:21,587 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4847 transitions. Word has length 165 [2022-01-10 14:11:21,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:21,587 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4847 transitions. [2022-01-10 14:11:21,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4847 transitions. [2022-01-10 14:11:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:21,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:21,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:21,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 14:11:21,589 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:21,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1286228522, now seen corresponding path program 1 times [2022-01-10 14:11:21,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:21,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679758098] [2022-01-10 14:11:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:21,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:21,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:21,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679758098] [2022-01-10 14:11:21,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679758098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:21,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:21,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:21,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829210116] [2022-01-10 14:11:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:21,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:21,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:21,633 INFO L87 Difference]: Start difference. First operand 3329 states and 4847 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:21,810 INFO L93 Difference]: Finished difference Result 6627 states and 9649 transitions. [2022-01-10 14:11:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:21,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:21,816 INFO L225 Difference]: With dead ends: 6627 [2022-01-10 14:11:21,816 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:21,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:21,822 INFO L933 BasicCegarLoop]: 2606 mSDtfsCounter, 2581 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:21,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2581 Valid, 2606 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:22,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:22,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.454463480613165) internal successors, (4839), 3328 states have internal predecessors, (4839), 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) [2022-01-10 14:11:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4839 transitions. [2022-01-10 14:11:22,106 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4839 transitions. Word has length 165 [2022-01-10 14:11:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:22,107 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4839 transitions. [2022-01-10 14:11:22,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4839 transitions. [2022-01-10 14:11:22,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:22,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:22,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:22,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 14:11:22,108 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:22,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:22,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1572048054, now seen corresponding path program 1 times [2022-01-10 14:11:22,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:22,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865139117] [2022-01-10 14:11:22,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:22,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:22,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:22,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865139117] [2022-01-10 14:11:22,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865139117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:22,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:22,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:22,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550982886] [2022-01-10 14:11:22,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:22,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:22,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:22,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:22,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:22,155 INFO L87 Difference]: Start difference. First operand 3329 states and 4839 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:22,347 INFO L93 Difference]: Finished difference Result 6626 states and 9632 transitions. [2022-01-10 14:11:22,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:22,352 INFO L225 Difference]: With dead ends: 6626 [2022-01-10 14:11:22,352 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:22,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:22,356 INFO L933 BasicCegarLoop]: 2601 mSDtfsCounter, 2575 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:22,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2575 Valid, 2601 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:22,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4520589119326721) internal successors, (4831), 3328 states have internal predecessors, (4831), 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) [2022-01-10 14:11:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4831 transitions. [2022-01-10 14:11:22,576 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4831 transitions. Word has length 165 [2022-01-10 14:11:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:22,576 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4831 transitions. [2022-01-10 14:11:22,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4831 transitions. [2022-01-10 14:11:22,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:22,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:22,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:22,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 14:11:22,577 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:22,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:22,578 INFO L85 PathProgramCache]: Analyzing trace with hash -691054122, now seen corresponding path program 1 times [2022-01-10 14:11:22,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:22,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972883422] [2022-01-10 14:11:22,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:22,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:22,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:22,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:22,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972883422] [2022-01-10 14:11:22,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972883422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:22,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:22,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:22,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996694755] [2022-01-10 14:11:22,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:22,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:22,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:22,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:22,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:22,624 INFO L87 Difference]: Start difference. First operand 3329 states and 4831 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:22,846 INFO L93 Difference]: Finished difference Result 6625 states and 9615 transitions. [2022-01-10 14:11:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:22,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:22,851 INFO L225 Difference]: With dead ends: 6625 [2022-01-10 14:11:22,851 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:22,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:22,857 INFO L933 BasicCegarLoop]: 2566 mSDtfsCounter, 2422 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:22,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2422 Valid, 2694 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:22,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:23,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4412383528704538) internal successors, (4795), 3328 states have internal predecessors, (4795), 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) [2022-01-10 14:11:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4795 transitions. [2022-01-10 14:11:23,050 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4795 transitions. Word has length 165 [2022-01-10 14:11:23,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:23,050 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4795 transitions. [2022-01-10 14:11:23,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4795 transitions. [2022-01-10 14:11:23,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:23,051 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:23,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:23,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 14:11:23,052 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:23,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:23,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1047348021, now seen corresponding path program 1 times [2022-01-10 14:11:23,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:23,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033896033] [2022-01-10 14:11:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:23,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:23,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:23,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033896033] [2022-01-10 14:11:23,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033896033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:23,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:23,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:23,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438725983] [2022-01-10 14:11:23,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:23,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:23,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:23,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:23,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:23,112 INFO L87 Difference]: Start difference. First operand 3329 states and 4795 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:23,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:23,343 INFO L93 Difference]: Finished difference Result 6623 states and 9540 transitions. [2022-01-10 14:11:23,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:23,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:23,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:23,347 INFO L225 Difference]: With dead ends: 6623 [2022-01-10 14:11:23,347 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:23,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:23,351 INFO L933 BasicCegarLoop]: 2546 mSDtfsCounter, 2401 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:23,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2401 Valid, 2673 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:23,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4304177938082356) internal successors, (4759), 3328 states have internal predecessors, (4759), 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) [2022-01-10 14:11:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4759 transitions. [2022-01-10 14:11:23,541 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4759 transitions. Word has length 165 [2022-01-10 14:11:23,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:23,541 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4759 transitions. [2022-01-10 14:11:23,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:23,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4759 transitions. [2022-01-10 14:11:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:23,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:23,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:23,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 14:11:23,542 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:23,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1259203348, now seen corresponding path program 1 times [2022-01-10 14:11:23,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:23,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53471349] [2022-01-10 14:11:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:23,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:23,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:23,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:23,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53471349] [2022-01-10 14:11:23,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53471349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:23,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:23,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:23,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056600876] [2022-01-10 14:11:23,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:23,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:23,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:23,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:23,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:23,586 INFO L87 Difference]: Start difference. First operand 3329 states and 4759 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:23,852 INFO L93 Difference]: Finished difference Result 6622 states and 9467 transitions. [2022-01-10 14:11:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:23,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:23,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:23,857 INFO L225 Difference]: With dead ends: 6622 [2022-01-10 14:11:23,857 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:23,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:23,861 INFO L933 BasicCegarLoop]: 2526 mSDtfsCounter, 2381 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:23,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2381 Valid, 2652 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:24,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:24,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4195972347460175) internal successors, (4723), 3328 states have internal predecessors, (4723), 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) [2022-01-10 14:11:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4723 transitions. [2022-01-10 14:11:24,010 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4723 transitions. Word has length 165 [2022-01-10 14:11:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:24,010 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4723 transitions. [2022-01-10 14:11:24,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4723 transitions. [2022-01-10 14:11:24,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:24,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:24,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:24,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 14:11:24,015 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:24,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash 763499635, now seen corresponding path program 1 times [2022-01-10 14:11:24,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:24,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726118748] [2022-01-10 14:11:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:24,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:24,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:24,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726118748] [2022-01-10 14:11:24,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726118748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:24,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:24,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:24,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540915632] [2022-01-10 14:11:24,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:24,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:24,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:24,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:24,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:24,061 INFO L87 Difference]: Start difference. First operand 3329 states and 4723 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:24,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:24,298 INFO L93 Difference]: Finished difference Result 6621 states and 9394 transitions. [2022-01-10 14:11:24,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:24,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:24,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:24,303 INFO L225 Difference]: With dead ends: 6621 [2022-01-10 14:11:24,303 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:24,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:24,309 INFO L933 BasicCegarLoop]: 2506 mSDtfsCounter, 2361 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:24,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 2631 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:24,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.4087766756837992) internal successors, (4687), 3328 states have internal predecessors, (4687), 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) [2022-01-10 14:11:24,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4687 transitions. [2022-01-10 14:11:24,548 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4687 transitions. Word has length 165 [2022-01-10 14:11:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:24,549 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4687 transitions. [2022-01-10 14:11:24,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:24,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4687 transitions. [2022-01-10 14:11:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:24,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:24,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:24,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 14:11:24,550 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:24,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:24,551 INFO L85 PathProgramCache]: Analyzing trace with hash -720815406, now seen corresponding path program 1 times [2022-01-10 14:11:24,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:24,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422223376] [2022-01-10 14:11:24,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:24,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:24,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:24,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422223376] [2022-01-10 14:11:24,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422223376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:24,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:24,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:24,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160184833] [2022-01-10 14:11:24,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:24,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:24,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:24,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:24,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:24,603 INFO L87 Difference]: Start difference. First operand 3329 states and 4687 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:24,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:24,890 INFO L93 Difference]: Finished difference Result 6620 states and 9321 transitions. [2022-01-10 14:11:24,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:24,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:24,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:24,894 INFO L225 Difference]: With dead ends: 6620 [2022-01-10 14:11:24,894 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:24,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:24,898 INFO L933 BasicCegarLoop]: 2486 mSDtfsCounter, 2341 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2341 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:24,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2341 Valid, 2610 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:25,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:25,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.397956116621581) internal successors, (4651), 3328 states have internal predecessors, (4651), 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) [2022-01-10 14:11:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4651 transitions. [2022-01-10 14:11:25,066 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4651 transitions. Word has length 165 [2022-01-10 14:11:25,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:25,066 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4651 transitions. [2022-01-10 14:11:25,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:25,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4651 transitions. [2022-01-10 14:11:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:25,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:25,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:25,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 14:11:25,068 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:25,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1148497231, now seen corresponding path program 1 times [2022-01-10 14:11:25,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:25,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342623541] [2022-01-10 14:11:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:25,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:25,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:25,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:25,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342623541] [2022-01-10 14:11:25,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342623541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:25,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:25,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:25,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917569332] [2022-01-10 14:11:25,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:25,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:25,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:25,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:25,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:25,117 INFO L87 Difference]: Start difference. First operand 3329 states and 4651 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:25,352 INFO L93 Difference]: Finished difference Result 6619 states and 9248 transitions. [2022-01-10 14:11:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:25,356 INFO L225 Difference]: With dead ends: 6619 [2022-01-10 14:11:25,356 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:25,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:25,360 INFO L933 BasicCegarLoop]: 2466 mSDtfsCounter, 2321 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:25,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2321 Valid, 2589 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:25,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3871355575593627) internal successors, (4615), 3328 states have internal predecessors, (4615), 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) [2022-01-10 14:11:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4615 transitions. [2022-01-10 14:11:25,532 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4615 transitions. Word has length 165 [2022-01-10 14:11:25,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:25,532 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4615 transitions. [2022-01-10 14:11:25,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4615 transitions. [2022-01-10 14:11:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:25,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:25,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:25,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 14:11:25,533 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:25,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:25,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1174620272, now seen corresponding path program 1 times [2022-01-10 14:11:25,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:25,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267483192] [2022-01-10 14:11:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:25,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:25,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:25,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:25,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267483192] [2022-01-10 14:11:25,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267483192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:25,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:25,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:25,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216288509] [2022-01-10 14:11:25,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:25,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:25,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:25,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:25,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:25,578 INFO L87 Difference]: Start difference. First operand 3329 states and 4615 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:25,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:25,821 INFO L93 Difference]: Finished difference Result 6618 states and 9175 transitions. [2022-01-10 14:11:25,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:25,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:25,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:25,825 INFO L225 Difference]: With dead ends: 6618 [2022-01-10 14:11:25,825 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:25,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:25,828 INFO L933 BasicCegarLoop]: 2446 mSDtfsCounter, 2301 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:25,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2301 Valid, 2568 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:25,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3763149984971446) internal successors, (4579), 3328 states have internal predecessors, (4579), 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) [2022-01-10 14:11:25,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4579 transitions. [2022-01-10 14:11:25,975 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4579 transitions. Word has length 165 [2022-01-10 14:11:25,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:25,975 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4579 transitions. [2022-01-10 14:11:25,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:25,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4579 transitions. [2022-01-10 14:11:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:25,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:25,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:25,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 14:11:25,976 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:25,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:25,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1053064687, now seen corresponding path program 1 times [2022-01-10 14:11:25,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:25,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409873443] [2022-01-10 14:11:25,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:25,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:26,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:26,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409873443] [2022-01-10 14:11:26,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409873443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:26,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:26,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:26,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470874629] [2022-01-10 14:11:26,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:26,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:26,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:26,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:26,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:26,026 INFO L87 Difference]: Start difference. First operand 3329 states and 4579 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:26,361 INFO L93 Difference]: Finished difference Result 6617 states and 9102 transitions. [2022-01-10 14:11:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:26,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:26,367 INFO L225 Difference]: With dead ends: 6617 [2022-01-10 14:11:26,367 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:26,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:26,372 INFO L933 BasicCegarLoop]: 2426 mSDtfsCounter, 2281 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:26,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2281 Valid, 2547 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:11:26,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:26,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3654944394349264) internal successors, (4543), 3328 states have internal predecessors, (4543), 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) [2022-01-10 14:11:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4543 transitions. [2022-01-10 14:11:26,598 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4543 transitions. Word has length 165 [2022-01-10 14:11:26,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:26,598 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4543 transitions. [2022-01-10 14:11:26,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:26,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4543 transitions. [2022-01-10 14:11:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:26,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:26,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:26,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 14:11:26,600 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:26,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:26,600 INFO L85 PathProgramCache]: Analyzing trace with hash -431759026, now seen corresponding path program 1 times [2022-01-10 14:11:26,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:26,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970509486] [2022-01-10 14:11:26,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:26,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:26,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:26,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970509486] [2022-01-10 14:11:26,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970509486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:26,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:26,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:26,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78366624] [2022-01-10 14:11:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:26,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:26,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:26,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:26,651 INFO L87 Difference]: Start difference. First operand 3329 states and 4543 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:26,896 INFO L93 Difference]: Finished difference Result 6616 states and 9029 transitions. [2022-01-10 14:11:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:26,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:26,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:26,899 INFO L225 Difference]: With dead ends: 6616 [2022-01-10 14:11:26,899 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:26,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:26,902 INFO L933 BasicCegarLoop]: 2406 mSDtfsCounter, 2261 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:26,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2261 Valid, 2526 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:26,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.354673880372708) internal successors, (4507), 3328 states have internal predecessors, (4507), 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) [2022-01-10 14:11:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4507 transitions. [2022-01-10 14:11:27,151 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4507 transitions. Word has length 165 [2022-01-10 14:11:27,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:27,151 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4507 transitions. [2022-01-10 14:11:27,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4507 transitions. [2022-01-10 14:11:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:27,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:27,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:27,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 14:11:27,152 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash 447288877, now seen corresponding path program 1 times [2022-01-10 14:11:27,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:27,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13385165] [2022-01-10 14:11:27,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:27,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:27,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:27,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13385165] [2022-01-10 14:11:27,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13385165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:27,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:27,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:27,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606926907] [2022-01-10 14:11:27,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:27,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:27,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:27,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:27,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:27,196 INFO L87 Difference]: Start difference. First operand 3329 states and 4507 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:27,453 INFO L93 Difference]: Finished difference Result 6615 states and 8956 transitions. [2022-01-10 14:11:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:27,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:27,457 INFO L225 Difference]: With dead ends: 6615 [2022-01-10 14:11:27,457 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:27,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:27,460 INFO L933 BasicCegarLoop]: 2386 mSDtfsCounter, 2241 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:27,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2241 Valid, 2505 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:27,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.34385332131049) internal successors, (4471), 3328 states have internal predecessors, (4471), 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) [2022-01-10 14:11:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4471 transitions. [2022-01-10 14:11:27,630 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4471 transitions. Word has length 165 [2022-01-10 14:11:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:27,631 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4471 transitions. [2022-01-10 14:11:27,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4471 transitions. [2022-01-10 14:11:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:27,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:27,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:27,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 14:11:27,632 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:27,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash 595212300, now seen corresponding path program 1 times [2022-01-10 14:11:27,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:27,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637712629] [2022-01-10 14:11:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:27,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:27,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:27,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637712629] [2022-01-10 14:11:27,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637712629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:27,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:27,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:27,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138695024] [2022-01-10 14:11:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:27,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:27,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:27,675 INFO L87 Difference]: Start difference. First operand 3329 states and 4471 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:27,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:27,951 INFO L93 Difference]: Finished difference Result 6614 states and 8883 transitions. [2022-01-10 14:11:27,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:27,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:27,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:27,955 INFO L225 Difference]: With dead ends: 6614 [2022-01-10 14:11:27,955 INFO L226 Difference]: Without dead ends: 3329 [2022-01-10 14:11:27,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:27,958 INFO L933 BasicCegarLoop]: 2366 mSDtfsCounter, 2221 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:27,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2221 Valid, 2484 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:27,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2022-01-10 14:11:28,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3329. [2022-01-10 14:11:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3329 states, 3327 states have (on average 1.3330327622482716) internal successors, (4435), 3328 states have internal predecessors, (4435), 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) [2022-01-10 14:11:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3329 states to 3329 states and 4435 transitions. [2022-01-10 14:11:28,132 INFO L78 Accepts]: Start accepts. Automaton has 3329 states and 4435 transitions. Word has length 165 [2022-01-10 14:11:28,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:28,132 INFO L470 AbstractCegarLoop]: Abstraction has 3329 states and 4435 transitions. [2022-01-10 14:11:28,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:28,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3329 states and 4435 transitions. [2022-01-10 14:11:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:28,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:28,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:28,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 14:11:28,134 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:28,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:28,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1611359381, now seen corresponding path program 1 times [2022-01-10 14:11:28,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:28,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248294531] [2022-01-10 14:11:28,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:28,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:28,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:28,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248294531] [2022-01-10 14:11:28,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248294531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:28,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:28,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:11:28,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164889946] [2022-01-10 14:11:28,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:28,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:11:28,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:28,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:11:28,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:11:28,202 INFO L87 Difference]: Start difference. First operand 3329 states and 4435 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-10 14:11:28,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:28,787 INFO L93 Difference]: Finished difference Result 7584 states and 10187 transitions. [2022-01-10 14:11:28,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:11:28,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:28,793 INFO L225 Difference]: With dead ends: 7584 [2022-01-10 14:11:28,793 INFO L226 Difference]: Without dead ends: 4307 [2022-01-10 14:11:28,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:11:28,796 INFO L933 BasicCegarLoop]: 2550 mSDtfsCounter, 6858 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6858 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:28,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6858 Valid, 4574 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:11:28,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2022-01-10 14:11:29,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 3335. [2022-01-10 14:11:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3335 states, 3333 states have (on average 1.3240324032403241) internal successors, (4413), 3334 states have internal predecessors, (4413), 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) [2022-01-10 14:11:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 4413 transitions. [2022-01-10 14:11:29,006 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 4413 transitions. Word has length 165 [2022-01-10 14:11:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:29,006 INFO L470 AbstractCegarLoop]: Abstraction has 3335 states and 4413 transitions. [2022-01-10 14:11:29,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-10 14:11:29,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 4413 transitions. [2022-01-10 14:11:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:29,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:29,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:29,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 14:11:29,007 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:29,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:29,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1500590380, now seen corresponding path program 1 times [2022-01-10 14:11:29,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:29,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20530866] [2022-01-10 14:11:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:29,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:29,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:29,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20530866] [2022-01-10 14:11:29,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20530866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:29,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:29,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:29,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578759256] [2022-01-10 14:11:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:29,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:29,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:29,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:29,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:29,051 INFO L87 Difference]: Start difference. First operand 3335 states and 4413 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:29,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:29,728 INFO L93 Difference]: Finished difference Result 9569 states and 12654 transitions. [2022-01-10 14:11:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:29,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:29,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:29,736 INFO L225 Difference]: With dead ends: 9569 [2022-01-10 14:11:29,736 INFO L226 Difference]: Without dead ends: 6288 [2022-01-10 14:11:29,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:29,742 INFO L933 BasicCegarLoop]: 2352 mSDtfsCounter, 2148 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 4478 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:29,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2148 Valid, 4478 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6288 states. [2022-01-10 14:11:30,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6288 to 6280. [2022-01-10 14:11:30,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6280 states, 6278 states have (on average 1.318254221089519) internal successors, (8276), 6279 states have internal predecessors, (8276), 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) [2022-01-10 14:11:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 8276 transitions. [2022-01-10 14:11:30,182 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 8276 transitions. Word has length 165 [2022-01-10 14:11:30,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:30,182 INFO L470 AbstractCegarLoop]: Abstraction has 6280 states and 8276 transitions. [2022-01-10 14:11:30,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 8276 transitions. [2022-01-10 14:11:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:30,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:30,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:30,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 14:11:30,183 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:30,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash 688035563, now seen corresponding path program 1 times [2022-01-10 14:11:30,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:30,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676540852] [2022-01-10 14:11:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:30,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:30,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:30,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:30,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676540852] [2022-01-10 14:11:30,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676540852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:30,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:30,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:11:30,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570940704] [2022-01-10 14:11:30,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:30,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:11:30,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:30,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:11:30,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:11:30,242 INFO L87 Difference]: Start difference. First operand 6280 states and 8276 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-10 14:11:31,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:31,088 INFO L93 Difference]: Finished difference Result 13815 states and 18292 transitions. [2022-01-10 14:11:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:11:31,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:31,098 INFO L225 Difference]: With dead ends: 13815 [2022-01-10 14:11:31,098 INFO L226 Difference]: Without dead ends: 7600 [2022-01-10 14:11:31,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:11:31,103 INFO L933 BasicCegarLoop]: 2494 mSDtfsCounter, 6487 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6487 SdHoareTripleChecker+Valid, 5276 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:31,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6487 Valid, 5276 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:11:31,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7600 states. [2022-01-10 14:11:31,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7600 to 6286. [2022-01-10 14:11:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6286 states, 6284 states have (on average 1.3091979630808401) internal successors, (8227), 6285 states have internal predecessors, (8227), 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) [2022-01-10 14:11:31,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6286 states to 6286 states and 8227 transitions. [2022-01-10 14:11:31,536 INFO L78 Accepts]: Start accepts. Automaton has 6286 states and 8227 transitions. Word has length 165 [2022-01-10 14:11:31,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:31,536 INFO L470 AbstractCegarLoop]: Abstraction has 6286 states and 8227 transitions. [2022-01-10 14:11:31,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-10 14:11:31,537 INFO L276 IsEmpty]: Start isEmpty. Operand 6286 states and 8227 transitions. [2022-01-10 14:11:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:31,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:31,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:31,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 14:11:31,538 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:31,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:31,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1818822188, now seen corresponding path program 1 times [2022-01-10 14:11:31,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:31,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339872974] [2022-01-10 14:11:31,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:31,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:31,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:31,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:31,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339872974] [2022-01-10 14:11:31,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339872974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:31,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:31,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:11:31,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702028090] [2022-01-10 14:11:31,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:31,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:11:31,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:31,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:11:31,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:11:31,601 INFO L87 Difference]: Start difference. First operand 6286 states and 8227 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-10 14:11:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:32,421 INFO L93 Difference]: Finished difference Result 15386 states and 20234 transitions. [2022-01-10 14:11:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:11:32,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:32,431 INFO L225 Difference]: With dead ends: 15386 [2022-01-10 14:11:32,431 INFO L226 Difference]: Without dead ends: 9172 [2022-01-10 14:11:32,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:11:32,434 INFO L933 BasicCegarLoop]: 2461 mSDtfsCounter, 6296 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6296 SdHoareTripleChecker+Valid, 5572 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:32,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6296 Valid, 5572 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:11:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9172 states. [2022-01-10 14:11:32,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9172 to 6298. [2022-01-10 14:11:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6298 states, 6296 states have (on average 1.3001905972045744) internal successors, (8186), 6297 states have internal predecessors, (8186), 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) [2022-01-10 14:11:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6298 states to 6298 states and 8186 transitions. [2022-01-10 14:11:32,893 INFO L78 Accepts]: Start accepts. Automaton has 6298 states and 8186 transitions. Word has length 165 [2022-01-10 14:11:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:32,893 INFO L470 AbstractCegarLoop]: Abstraction has 6298 states and 8186 transitions. [2022-01-10 14:11:32,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 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) [2022-01-10 14:11:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6298 states and 8186 transitions. [2022-01-10 14:11:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:32,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:32,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:32,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 14:11:32,894 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:32,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:32,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1675609555, now seen corresponding path program 1 times [2022-01-10 14:11:32,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:32,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707571157] [2022-01-10 14:11:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:32,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:32,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:32,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707571157] [2022-01-10 14:11:32,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707571157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:32,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:32,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:32,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886732712] [2022-01-10 14:11:32,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:32,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:32,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:32,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:32,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:32,948 INFO L87 Difference]: Start difference. First operand 6298 states and 8186 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:34,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:34,002 INFO L93 Difference]: Finished difference Result 18158 states and 23583 transitions. [2022-01-10 14:11:34,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:34,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:34,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:34,015 INFO L225 Difference]: With dead ends: 18158 [2022-01-10 14:11:34,015 INFO L226 Difference]: Without dead ends: 11990 [2022-01-10 14:11:34,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:34,023 INFO L933 BasicCegarLoop]: 2319 mSDtfsCounter, 2050 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:34,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 4417 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:11:34,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11990 states. [2022-01-10 14:11:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11990 to 11978. [2022-01-10 14:11:34,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11978 states, 11976 states have (on average 1.2939211756847027) internal successors, (15496), 11977 states have internal predecessors, (15496), 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) [2022-01-10 14:11:34,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11978 states to 11978 states and 15496 transitions. [2022-01-10 14:11:34,900 INFO L78 Accepts]: Start accepts. Automaton has 11978 states and 15496 transitions. Word has length 165 [2022-01-10 14:11:34,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:34,901 INFO L470 AbstractCegarLoop]: Abstraction has 11978 states and 15496 transitions. [2022-01-10 14:11:34,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 11978 states and 15496 transitions. [2022-01-10 14:11:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:34,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:34,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:34,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 14:11:34,902 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:34,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2071364692, now seen corresponding path program 1 times [2022-01-10 14:11:34,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:34,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284486019] [2022-01-10 14:11:34,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:34,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:34,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:34,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284486019] [2022-01-10 14:11:34,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284486019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:34,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:34,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:34,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165791100] [2022-01-10 14:11:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:34,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:34,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:34,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:34,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:34,962 INFO L87 Difference]: Start difference. First operand 11978 states and 15496 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:36,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:36,022 INFO L93 Difference]: Finished difference Result 23932 states and 30956 transitions. [2022-01-10 14:11:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:36,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:36,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:36,037 INFO L225 Difference]: With dead ends: 23932 [2022-01-10 14:11:36,037 INFO L226 Difference]: Without dead ends: 11978 [2022-01-10 14:11:36,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:36,050 INFO L933 BasicCegarLoop]: 2325 mSDtfsCounter, 2202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2202 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:36,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2202 Valid, 2325 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:36,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11978 states. [2022-01-10 14:11:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11978 to 11978. [2022-01-10 14:11:36,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11978 states, 11976 states have (on average 1.291750167000668) internal successors, (15470), 11977 states have internal predecessors, (15470), 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) [2022-01-10 14:11:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11978 states to 11978 states and 15470 transitions. [2022-01-10 14:11:37,042 INFO L78 Accepts]: Start accepts. Automaton has 11978 states and 15470 transitions. Word has length 165 [2022-01-10 14:11:37,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:37,042 INFO L470 AbstractCegarLoop]: Abstraction has 11978 states and 15470 transitions. [2022-01-10 14:11:37,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:37,042 INFO L276 IsEmpty]: Start isEmpty. Operand 11978 states and 15470 transitions. [2022-01-10 14:11:37,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:37,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:37,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:37,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 14:11:37,043 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:37,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:37,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1741598931, now seen corresponding path program 1 times [2022-01-10 14:11:37,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:37,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517916052] [2022-01-10 14:11:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:37,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:37,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:37,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517916052] [2022-01-10 14:11:37,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517916052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:37,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:37,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:37,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549399063] [2022-01-10 14:11:37,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:37,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:37,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:37,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:37,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:37,130 INFO L87 Difference]: Start difference. First operand 11978 states and 15470 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:38,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:38,253 INFO L93 Difference]: Finished difference Result 23926 states and 30898 transitions. [2022-01-10 14:11:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:38,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:38,265 INFO L225 Difference]: With dead ends: 23926 [2022-01-10 14:11:38,265 INFO L226 Difference]: Without dead ends: 11978 [2022-01-10 14:11:38,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:38,272 INFO L933 BasicCegarLoop]: 2320 mSDtfsCounter, 2191 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:38,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2191 Valid, 2320 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:38,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11978 states. [2022-01-10 14:11:39,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11978 to 11978. [2022-01-10 14:11:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11978 states, 11976 states have (on average 1.2895791583166332) internal successors, (15444), 11977 states have internal predecessors, (15444), 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) [2022-01-10 14:11:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11978 states to 11978 states and 15444 transitions. [2022-01-10 14:11:39,306 INFO L78 Accepts]: Start accepts. Automaton has 11978 states and 15444 transitions. Word has length 165 [2022-01-10 14:11:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:39,307 INFO L470 AbstractCegarLoop]: Abstraction has 11978 states and 15444 transitions. [2022-01-10 14:11:39,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 11978 states and 15444 transitions. [2022-01-10 14:11:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:39,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:39,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:39,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 14:11:39,308 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:39,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:39,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1390798994, now seen corresponding path program 1 times [2022-01-10 14:11:39,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:39,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810366363] [2022-01-10 14:11:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:39,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:39,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:39,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810366363] [2022-01-10 14:11:39,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810366363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:39,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:39,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:39,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653290661] [2022-01-10 14:11:39,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:39,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:39,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:39,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:39,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:39,369 INFO L87 Difference]: Start difference. First operand 11978 states and 15444 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:40,456 INFO L93 Difference]: Finished difference Result 23922 states and 30842 transitions. [2022-01-10 14:11:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:40,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:40,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:40,473 INFO L225 Difference]: With dead ends: 23922 [2022-01-10 14:11:40,473 INFO L226 Difference]: Without dead ends: 11978 [2022-01-10 14:11:40,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:40,485 INFO L933 BasicCegarLoop]: 2287 mSDtfsCounter, 2050 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:40,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2050 Valid, 2401 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:40,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11978 states. [2022-01-10 14:11:41,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11978 to 11978. [2022-01-10 14:11:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11978 states, 11976 states have (on average 1.2830661322645291) internal successors, (15366), 11977 states have internal predecessors, (15366), 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) [2022-01-10 14:11:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11978 states to 11978 states and 15366 transitions. [2022-01-10 14:11:41,448 INFO L78 Accepts]: Start accepts. Automaton has 11978 states and 15366 transitions. Word has length 165 [2022-01-10 14:11:41,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:41,448 INFO L470 AbstractCegarLoop]: Abstraction has 11978 states and 15366 transitions. [2022-01-10 14:11:41,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:41,448 INFO L276 IsEmpty]: Start isEmpty. Operand 11978 states and 15366 transitions. [2022-01-10 14:11:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:41,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:41,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:41,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 14:11:41,449 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash -429184977, now seen corresponding path program 1 times [2022-01-10 14:11:41,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:41,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317551455] [2022-01-10 14:11:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:41,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:41,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:41,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:41,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317551455] [2022-01-10 14:11:41,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317551455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:41,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:41,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:41,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161995100] [2022-01-10 14:11:41,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:41,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:41,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:41,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:41,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:41,505 INFO L87 Difference]: Start difference. First operand 11978 states and 15366 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:42,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:42,547 INFO L93 Difference]: Finished difference Result 23911 states and 30675 transitions. [2022-01-10 14:11:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:42,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:42,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:42,561 INFO L225 Difference]: With dead ends: 23911 [2022-01-10 14:11:42,562 INFO L226 Difference]: Without dead ends: 11978 [2022-01-10 14:11:42,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:42,572 INFO L933 BasicCegarLoop]: 2268 mSDtfsCounter, 2021 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:42,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2021 Valid, 2381 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11978 states. [2022-01-10 14:11:43,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11978 to 11978. [2022-01-10 14:11:43,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11978 states, 11976 states have (on average 1.276553106212425) internal successors, (15288), 11977 states have internal predecessors, (15288), 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) [2022-01-10 14:11:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11978 states to 11978 states and 15288 transitions. [2022-01-10 14:11:43,536 INFO L78 Accepts]: Start accepts. Automaton has 11978 states and 15288 transitions. Word has length 165 [2022-01-10 14:11:43,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:43,536 INFO L470 AbstractCegarLoop]: Abstraction has 11978 states and 15288 transitions. [2022-01-10 14:11:43,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:43,536 INFO L276 IsEmpty]: Start isEmpty. Operand 11978 states and 15288 transitions. [2022-01-10 14:11:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 14:11:43,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:43,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:43,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-10 14:11:43,537 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:43,538 INFO L85 PathProgramCache]: Analyzing trace with hash -939719154, now seen corresponding path program 1 times [2022-01-10 14:11:43,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:43,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229768521] [2022-01-10 14:11:43,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:43,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:43,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:43,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229768521] [2022-01-10 14:11:43,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229768521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:43,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:43,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:11:43,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963702941] [2022-01-10 14:11:43,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:43,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:43,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:43,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:43,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:43,594 INFO L87 Difference]: Start difference. First operand 11978 states and 15288 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:45,821 INFO L93 Difference]: Finished difference Result 35536 states and 45360 transitions. [2022-01-10 14:11:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2022-01-10 14:11:45,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:45,847 INFO L225 Difference]: With dead ends: 35536 [2022-01-10 14:11:45,847 INFO L226 Difference]: Without dead ends: 23605 [2022-01-10 14:11:45,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:45,859 INFO L933 BasicCegarLoop]: 2268 mSDtfsCounter, 2073 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 4326 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:45,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2073 Valid, 4326 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:11:45,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23605 states. [2022-01-10 14:11:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23605 to 22893. [2022-01-10 14:11:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22893 states, 22891 states have (on average 1.272552531562623) internal successors, (29130), 22892 states have internal predecessors, (29130), 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) [2022-01-10 14:11:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22893 states to 22893 states and 29130 transitions. [2022-01-10 14:11:47,743 INFO L78 Accepts]: Start accepts. Automaton has 22893 states and 29130 transitions. Word has length 165 [2022-01-10 14:11:47,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:47,744 INFO L470 AbstractCegarLoop]: Abstraction has 22893 states and 29130 transitions. [2022-01-10 14:11:47,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2022-01-10 14:11:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 22893 states and 29130 transitions. [2022-01-10 14:11:47,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 14:11:47,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:47,756 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:47,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-10 14:11:47,756 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:47,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:47,756 INFO L85 PathProgramCache]: Analyzing trace with hash -778491454, now seen corresponding path program 1 times [2022-01-10 14:11:47,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:47,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978031752] [2022-01-10 14:11:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:47,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:47,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:47,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978031752] [2022-01-10 14:11:47,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978031752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:47,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:47,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:11:47,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745091248] [2022-01-10 14:11:47,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:47,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:11:47,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:47,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:11:47,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:11:47,840 INFO L87 Difference]: Start difference. First operand 22893 states and 29130 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 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) [2022-01-10 14:11:51,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:51,566 INFO L93 Difference]: Finished difference Result 62468 states and 79830 transitions. [2022-01-10 14:11:51,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:11:51,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 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) Word has length 268 [2022-01-10 14:11:51,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:51,620 INFO L225 Difference]: With dead ends: 62468 [2022-01-10 14:11:51,620 INFO L226 Difference]: Without dead ends: 39681 [2022-01-10 14:11:51,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:11:51,638 INFO L933 BasicCegarLoop]: 2301 mSDtfsCounter, 5322 mSDsluCounter, 4845 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5322 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:51,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5322 Valid, 7146 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:11:51,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39681 states. [2022-01-10 14:11:53,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39681 to 22941. [2022-01-10 14:11:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22941 states, 22939 states have (on average 1.2635685949692663) internal successors, (28985), 22940 states have internal predecessors, (28985), 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) [2022-01-10 14:11:54,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22941 states to 22941 states and 28985 transitions. [2022-01-10 14:11:54,023 INFO L78 Accepts]: Start accepts. Automaton has 22941 states and 28985 transitions. Word has length 268 [2022-01-10 14:11:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:11:54,023 INFO L470 AbstractCegarLoop]: Abstraction has 22941 states and 28985 transitions. [2022-01-10 14:11:54,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 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) [2022-01-10 14:11:54,024 INFO L276 IsEmpty]: Start isEmpty. Operand 22941 states and 28985 transitions. [2022-01-10 14:11:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 14:11:54,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:11:54,035 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:11:54,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-10 14:11:54,036 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:11:54,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:11:54,036 INFO L85 PathProgramCache]: Analyzing trace with hash -760870592, now seen corresponding path program 1 times [2022-01-10 14:11:54,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:11:54,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414115597] [2022-01-10 14:11:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:11:54,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:11:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:11:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:11:54,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:11:54,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414115597] [2022-01-10 14:11:54,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414115597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:11:54,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:11:54,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:11:54,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252645518] [2022-01-10 14:11:54,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:11:54,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:11:54,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:11:54,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:11:54,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:54,117 INFO L87 Difference]: Start difference. First operand 22941 states and 28985 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 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) [2022-01-10 14:11:58,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:11:58,588 INFO L93 Difference]: Finished difference Result 67971 states and 85492 transitions. [2022-01-10 14:11:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:11:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 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) Word has length 268 [2022-01-10 14:11:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:11:58,644 INFO L225 Difference]: With dead ends: 67971 [2022-01-10 14:11:58,644 INFO L226 Difference]: Without dead ends: 45191 [2022-01-10 14:11:58,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:11:58,662 INFO L933 BasicCegarLoop]: 2604 mSDtfsCounter, 2089 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:11:58,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2089 Valid, 4839 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:11:58,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45191 states. [2022-01-10 14:12:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45191 to 44519. [2022-01-10 14:12:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44519 states, 44517 states have (on average 1.2534537367747154) internal successors, (55800), 44518 states have internal predecessors, (55800), 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) [2022-01-10 14:12:03,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44519 states to 44519 states and 55800 transitions. [2022-01-10 14:12:03,192 INFO L78 Accepts]: Start accepts. Automaton has 44519 states and 55800 transitions. Word has length 268 [2022-01-10 14:12:03,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:12:03,192 INFO L470 AbstractCegarLoop]: Abstraction has 44519 states and 55800 transitions. [2022-01-10 14:12:03,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 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) [2022-01-10 14:12:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 44519 states and 55800 transitions. [2022-01-10 14:12:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 14:12:03,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:12:03,212 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:12:03,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-10 14:12:03,212 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:12:03,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:12:03,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1220303907, now seen corresponding path program 1 times [2022-01-10 14:12:03,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:12:03,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607638252] [2022-01-10 14:12:03,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:12:03,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:12:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:12:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 14:12:03,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:12:03,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607638252] [2022-01-10 14:12:03,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607638252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:12:03,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:12:03,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:12:03,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657756461] [2022-01-10 14:12:03,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:12:03,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:12:03,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:12:03,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:12:03,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:12:03,257 INFO L87 Difference]: Start difference. First operand 44519 states and 55800 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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)