/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_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.10.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:31:09,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:31:09,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:31:09,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 19:31:09,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 19:31:09,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 19:31:09,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 19:31:09,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 19:31:09,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 19:31:09,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 19:31:09,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 19:31:09,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 19:31:09,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:31:09,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:31:09,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:31:09,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:31:09,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:31:09,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:31:09,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:31:09,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:31:09,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:31:09,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:31:09,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:31:09,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:31:09,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 19:31:09,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 19:31:09,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 19:31:09,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 19:31:09,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 19:31:09,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 19:31:09,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 19:31:09,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 19:31:09,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 19:31:09,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 19:31:09,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 19:31:09,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 19:31:09,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 19:31:09,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 19:31:09,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:31:09,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:31:09,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:31:09,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:31:09,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:31:09,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:31:09,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:31:09,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:31:09,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:31:09,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:31:09,649 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:31:09,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:31:09,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:31:09,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:31:09,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:31:09,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:31:09,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:31:09,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:31:09,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:31:09,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:31:09,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:31:09,652 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:31:09,652 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:31:09,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:31:09,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:31:09,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:31:09,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:31:09,847 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:31:09,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.10.cil-1.c [2022-01-10 19:31:09,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24b21292/3a3fd9c2d23b41079cef36cbaf7332e9/FLAG0eb9db7ab [2022-01-10 19:31:10,617 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:31:10,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.10.cil-1.c [2022-01-10 19:31:10,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24b21292/3a3fd9c2d23b41079cef36cbaf7332e9/FLAG0eb9db7ab [2022-01-10 19:31:10,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24b21292/3a3fd9c2d23b41079cef36cbaf7332e9 [2022-01-10 19:31:10,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:31:10,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:31:10,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:31:10,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:31:10,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:31:10,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:31:10" (1/1) ... [2022-01-10 19:31:10,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64484be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:10, skipping insertion in model container [2022-01-10 19:31:10,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:31:10" (1/1) ... [2022-01-10 19:31:10,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:31:11,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:31:12,198 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/Problem05_label45+token_ring.10.cil-1.c[380323,380336] [2022-01-10 19:31:12,219 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/Problem05_label45+token_ring.10.cil-1.c[383339,383352] [2022-01-10 19:31:12,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:31:12,425 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:31:13,023 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/Problem05_label45+token_ring.10.cil-1.c[380323,380336] [2022-01-10 19:31:13,027 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/Problem05_label45+token_ring.10.cil-1.c[383339,383352] [2022-01-10 19:31:13,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:31:13,111 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:31:13,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13 WrapperNode [2022-01-10 19:31:13,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:31:13,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:31:13,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:31:13,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:31:13,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,513 INFO L137 Inliner]: procedures = 65, calls = 72, calls flagged for inlining = 67, calls inlined = 220, statements flattened = 15533 [2022-01-10 19:31:13,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:31:13,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:31:13,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:31:13,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:31:13,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:31:13,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:31:13,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:31:13,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:31:13,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (1/1) ... [2022-01-10 19:31:13,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:31:13,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:31:13,943 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 19:31:14,007 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 19:31:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:31:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:31:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:31:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:31:14,162 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:31:14,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:31:21,316 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:31:21,339 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:31:21,340 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-10 19:31:21,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:21 BoogieIcfgContainer [2022-01-10 19:31:21,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:31:21,345 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:31:21,346 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:31:21,347 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:31:21,349 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:21" (1/1) ... [2022-01-10 19:31:22,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:31:22 BasicIcfg [2022-01-10 19:31:22,633 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:31:22,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:31:22,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:31:22,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:31:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:31:10" (1/4) ... [2022-01-10 19:31:22,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bb85ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:31:22, skipping insertion in model container [2022-01-10 19:31:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:31:13" (2/4) ... [2022-01-10 19:31:22,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bb85ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:31:22, skipping insertion in model container [2022-01-10 19:31:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:21" (3/4) ... [2022-01-10 19:31:22,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bb85ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:31:22, skipping insertion in model container [2022-01-10 19:31:22,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:31:22" (4/4) ... [2022-01-10 19:31:22,640 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.10.cil-1.cTransformedIcfg [2022-01-10 19:31:22,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:31:22,644 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 19:31:22,685 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:31:22,691 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 19:31:22,691 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 19:31:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 3559 states, 3555 states have (on average 1.7313642756680732) internal successors, (6155), 3558 states have internal predecessors, (6155), 0 states have call successors, (0), 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 19:31:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:22,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:22,746 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] [2022-01-10 19:31:22,746 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash -136141347, now seen corresponding path program 1 times [2022-01-10 19:31:22,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:22,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80258096] [2022-01-10 19:31:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:22,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:23,126 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 19:31:23,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:23,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80258096] [2022-01-10 19:31:23,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80258096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:23,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:23,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:23,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025188877] [2022-01-10 19:31:23,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:23,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:23,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:23,156 INFO L87 Difference]: Start difference. First operand has 3559 states, 3555 states have (on average 1.7313642756680732) internal successors, (6155), 3558 states have internal predecessors, (6155), 0 states have call successors, (0), 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 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:23,397 INFO L93 Difference]: Finished difference Result 8255 states and 14007 transitions. [2022-01-10 19:31:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:23,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:23,426 INFO L225 Difference]: With dead ends: 8255 [2022-01-10 19:31:23,426 INFO L226 Difference]: Without dead ends: 4643 [2022-01-10 19:31:23,437 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 19:31:23,445 INFO L933 BasicCegarLoop]: 6056 mSDtfsCounter, 5927 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5927 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:23,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5927 Valid, 7864 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2022-01-10 19:31:23,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 4639. [2022-01-10 19:31:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6578947368421053) internal successors, (7686), 4638 states have internal predecessors, (7686), 0 states have call successors, (0), 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 19:31:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7686 transitions. [2022-01-10 19:31:23,598 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7686 transitions. Word has length 143 [2022-01-10 19:31:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:23,599 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7686 transitions. [2022-01-10 19:31:23,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7686 transitions. [2022-01-10 19:31:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:23,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:23,609 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] [2022-01-10 19:31:23,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:31:23,610 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:23,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash -21204739, now seen corresponding path program 1 times [2022-01-10 19:31:23,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:23,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77369629] [2022-01-10 19:31:23,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:23,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:23,743 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 19:31:23,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:23,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77369629] [2022-01-10 19:31:23,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77369629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:23,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:23,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:23,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684349748] [2022-01-10 19:31:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:23,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:23,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:23,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:23,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:23,746 INFO L87 Difference]: Start difference. First operand 4639 states and 7686 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:23,821 INFO L93 Difference]: Finished difference Result 7139 states and 11384 transitions. [2022-01-10 19:31:23,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:23,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:23,837 INFO L225 Difference]: With dead ends: 7139 [2022-01-10 19:31:23,838 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:23,844 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 19:31:23,845 INFO L933 BasicCegarLoop]: 5983 mSDtfsCounter, 5970 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5970 SdHoareTripleChecker+Valid, 5983 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 19:31:23,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5970 Valid, 5983 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6561691113028474) internal successors, (7678), 4638 states have internal predecessors, (7678), 0 states have call successors, (0), 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 19:31:23,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7678 transitions. [2022-01-10 19:31:23,932 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7678 transitions. Word has length 143 [2022-01-10 19:31:23,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:23,934 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7678 transitions. [2022-01-10 19:31:23,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7678 transitions. [2022-01-10 19:31:23,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:23,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:23,939 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] [2022-01-10 19:31:23,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:31:23,944 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:23,945 INFO L85 PathProgramCache]: Analyzing trace with hash -571686435, now seen corresponding path program 1 times [2022-01-10 19:31:23,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:23,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205794270] [2022-01-10 19:31:23,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:23,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:24,025 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 19:31:24,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:24,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205794270] [2022-01-10 19:31:24,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205794270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:24,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:24,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:24,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740840357] [2022-01-10 19:31:24,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:24,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:24,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:24,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:24,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:24,027 INFO L87 Difference]: Start difference. First operand 4639 states and 7678 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:24,105 INFO L93 Difference]: Finished difference Result 7138 states and 11367 transitions. [2022-01-10 19:31:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:24,117 INFO L225 Difference]: With dead ends: 7138 [2022-01-10 19:31:24,118 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:24,123 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 19:31:24,126 INFO L933 BasicCegarLoop]: 5978 mSDtfsCounter, 5964 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5964 SdHoareTripleChecker+Valid, 5978 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 19:31:24,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5964 Valid, 5978 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:24,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6544434857635892) internal successors, (7670), 4638 states have internal predecessors, (7670), 0 states have call successors, (0), 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 19:31:24,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7670 transitions. [2022-01-10 19:31:24,209 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7670 transitions. Word has length 143 [2022-01-10 19:31:24,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:24,210 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7670 transitions. [2022-01-10 19:31:24,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:24,210 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7670 transitions. [2022-01-10 19:31:24,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:24,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:24,212 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] [2022-01-10 19:31:24,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:31:24,212 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:24,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash -98167492, now seen corresponding path program 1 times [2022-01-10 19:31:24,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:24,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011214121] [2022-01-10 19:31:24,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:24,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:24,285 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 19:31:24,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:24,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011214121] [2022-01-10 19:31:24,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011214121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:24,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:24,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:24,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365045898] [2022-01-10 19:31:24,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:24,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:24,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:24,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:24,288 INFO L87 Difference]: Start difference. First operand 4639 states and 7670 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:24,371 INFO L93 Difference]: Finished difference Result 7136 states and 11348 transitions. [2022-01-10 19:31:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:24,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:24,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:24,385 INFO L225 Difference]: With dead ends: 7136 [2022-01-10 19:31:24,385 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:24,390 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 19:31:24,395 INFO L933 BasicCegarLoop]: 5973 mSDtfsCounter, 5957 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5957 SdHoareTripleChecker+Valid, 5973 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 19:31:24,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5957 Valid, 5973 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:24,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:24,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6527178602243313) internal successors, (7662), 4638 states have internal predecessors, (7662), 0 states have call successors, (0), 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 19:31:24,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7662 transitions. [2022-01-10 19:31:24,507 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7662 transitions. Word has length 143 [2022-01-10 19:31:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:24,507 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7662 transitions. [2022-01-10 19:31:24,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7662 transitions. [2022-01-10 19:31:24,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:24,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:24,509 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] [2022-01-10 19:31:24,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:31:24,509 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:24,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:24,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1159565220, now seen corresponding path program 1 times [2022-01-10 19:31:24,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:24,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383355052] [2022-01-10 19:31:24,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:24,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:24,556 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 19:31:24,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:24,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383355052] [2022-01-10 19:31:24,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383355052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:24,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:24,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:24,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615622712] [2022-01-10 19:31:24,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:24,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:24,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:24,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:24,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:24,558 INFO L87 Difference]: Start difference. First operand 4639 states and 7662 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:24,639 INFO L93 Difference]: Finished difference Result 7135 states and 11331 transitions. [2022-01-10 19:31:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:24,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:24,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:24,662 INFO L225 Difference]: With dead ends: 7135 [2022-01-10 19:31:24,663 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:24,666 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 19:31:24,667 INFO L933 BasicCegarLoop]: 5968 mSDtfsCounter, 5951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5951 SdHoareTripleChecker+Valid, 5968 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 19:31:24,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5951 Valid, 5968 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6509922346850734) internal successors, (7654), 4638 states have internal predecessors, (7654), 0 states have call successors, (0), 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 19:31:24,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7654 transitions. [2022-01-10 19:31:24,772 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7654 transitions. Word has length 143 [2022-01-10 19:31:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:24,775 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7654 transitions. [2022-01-10 19:31:24,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7654 transitions. [2022-01-10 19:31:24,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:24,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:24,777 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] [2022-01-10 19:31:24,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:31:24,777 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash -778161860, now seen corresponding path program 1 times [2022-01-10 19:31:24,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:24,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022195963] [2022-01-10 19:31:24,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:24,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:24,825 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 19:31:24,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:24,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022195963] [2022-01-10 19:31:24,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022195963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:24,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:24,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:24,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782179888] [2022-01-10 19:31:24,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:24,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:24,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:24,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:24,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:24,827 INFO L87 Difference]: Start difference. First operand 4639 states and 7654 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:24,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:24,917 INFO L93 Difference]: Finished difference Result 7134 states and 11314 transitions. [2022-01-10 19:31:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:24,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:24,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:24,932 INFO L225 Difference]: With dead ends: 7134 [2022-01-10 19:31:24,932 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:24,936 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 19:31:24,937 INFO L933 BasicCegarLoop]: 5963 mSDtfsCounter, 5945 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5945 SdHoareTripleChecker+Valid, 5963 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 19:31:24,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5945 Valid, 5963 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:24,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:25,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:25,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6492666091458155) internal successors, (7646), 4638 states have internal predecessors, (7646), 0 states have call successors, (0), 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 19:31:25,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7646 transitions. [2022-01-10 19:31:25,048 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7646 transitions. Word has length 143 [2022-01-10 19:31:25,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:25,049 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7646 transitions. [2022-01-10 19:31:25,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7646 transitions. [2022-01-10 19:31:25,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:25,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:25,050 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] [2022-01-10 19:31:25,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:31:25,051 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:25,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:25,051 INFO L85 PathProgramCache]: Analyzing trace with hash 823004187, now seen corresponding path program 1 times [2022-01-10 19:31:25,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:25,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673905263] [2022-01-10 19:31:25,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:25,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:25,086 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 19:31:25,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:25,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673905263] [2022-01-10 19:31:25,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673905263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:25,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:25,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:25,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412456836] [2022-01-10 19:31:25,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:25,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:25,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:25,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:25,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:25,088 INFO L87 Difference]: Start difference. First operand 4639 states and 7646 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:25,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:25,205 INFO L93 Difference]: Finished difference Result 7133 states and 11297 transitions. [2022-01-10 19:31:25,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:25,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:25,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:25,215 INFO L225 Difference]: With dead ends: 7133 [2022-01-10 19:31:25,215 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:25,220 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 19:31:25,221 INFO L933 BasicCegarLoop]: 5958 mSDtfsCounter, 5939 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 5958 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 19:31:25,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5939 Valid, 5958 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:25,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6475409836065573) internal successors, (7638), 4638 states have internal predecessors, (7638), 0 states have call successors, (0), 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 19:31:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7638 transitions. [2022-01-10 19:31:25,357 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7638 transitions. Word has length 143 [2022-01-10 19:31:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:25,357 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7638 transitions. [2022-01-10 19:31:25,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7638 transitions. [2022-01-10 19:31:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:25,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:25,358 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] [2022-01-10 19:31:25,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:31:25,359 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:25,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:25,359 INFO L85 PathProgramCache]: Analyzing trace with hash 193234171, now seen corresponding path program 1 times [2022-01-10 19:31:25,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:25,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946535968] [2022-01-10 19:31:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:25,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:25,400 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 19:31:25,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:25,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946535968] [2022-01-10 19:31:25,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946535968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:25,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:25,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:25,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578286587] [2022-01-10 19:31:25,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:25,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:25,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:25,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:25,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:25,402 INFO L87 Difference]: Start difference. First operand 4639 states and 7638 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:25,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:25,510 INFO L93 Difference]: Finished difference Result 7132 states and 11280 transitions. [2022-01-10 19:31:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:25,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:25,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:25,519 INFO L225 Difference]: With dead ends: 7132 [2022-01-10 19:31:25,519 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:25,523 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 19:31:25,524 INFO L933 BasicCegarLoop]: 5953 mSDtfsCounter, 5933 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5933 SdHoareTripleChecker+Valid, 5953 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 19:31:25,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5933 Valid, 5953 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:25,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:25,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6458153580672994) internal successors, (7630), 4638 states have internal predecessors, (7630), 0 states have call successors, (0), 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 19:31:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7630 transitions. [2022-01-10 19:31:25,759 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7630 transitions. Word has length 143 [2022-01-10 19:31:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:25,759 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7630 transitions. [2022-01-10 19:31:25,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7630 transitions. [2022-01-10 19:31:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:25,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:25,761 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] [2022-01-10 19:31:25,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:31:25,761 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:25,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2112581659, now seen corresponding path program 1 times [2022-01-10 19:31:25,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:25,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154090210] [2022-01-10 19:31:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:25,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:25,794 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 19:31:25,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:25,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154090210] [2022-01-10 19:31:25,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154090210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:25,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:25,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:25,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130873244] [2022-01-10 19:31:25,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:25,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:25,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:25,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:25,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:25,796 INFO L87 Difference]: Start difference. First operand 4639 states and 7630 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:25,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:25,893 INFO L93 Difference]: Finished difference Result 7131 states and 11263 transitions. [2022-01-10 19:31:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:25,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:25,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:25,901 INFO L225 Difference]: With dead ends: 7131 [2022-01-10 19:31:25,902 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:25,906 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 19:31:25,907 INFO L933 BasicCegarLoop]: 5948 mSDtfsCounter, 5927 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5927 SdHoareTripleChecker+Valid, 5948 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 19:31:25,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5927 Valid, 5948 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:25,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:26,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6440897325280415) internal successors, (7622), 4638 states have internal predecessors, (7622), 0 states have call successors, (0), 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 19:31:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7622 transitions. [2022-01-10 19:31:26,022 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7622 transitions. Word has length 143 [2022-01-10 19:31:26,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:26,023 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7622 transitions. [2022-01-10 19:31:26,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7622 transitions. [2022-01-10 19:31:26,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:26,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:26,027 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] [2022-01-10 19:31:26,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 19:31:26,027 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:26,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1150639877, now seen corresponding path program 1 times [2022-01-10 19:31:26,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:26,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423189729] [2022-01-10 19:31:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:26,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:26,072 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 19:31:26,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:26,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423189729] [2022-01-10 19:31:26,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423189729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:26,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:26,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:26,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097064267] [2022-01-10 19:31:26,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:26,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:26,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:26,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:26,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:26,073 INFO L87 Difference]: Start difference. First operand 4639 states and 7622 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:26,183 INFO L93 Difference]: Finished difference Result 7130 states and 11246 transitions. [2022-01-10 19:31:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:26,191 INFO L225 Difference]: With dead ends: 7130 [2022-01-10 19:31:26,191 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:26,195 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 19:31:26,195 INFO L933 BasicCegarLoop]: 5943 mSDtfsCounter, 5921 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5921 SdHoareTripleChecker+Valid, 5943 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 19:31:26,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5921 Valid, 5943 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:26,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:26,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6423641069887833) internal successors, (7614), 4638 states have internal predecessors, (7614), 0 states have call successors, (0), 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 19:31:26,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7614 transitions. [2022-01-10 19:31:26,305 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7614 transitions. Word has length 143 [2022-01-10 19:31:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:26,305 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7614 transitions. [2022-01-10 19:31:26,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7614 transitions. [2022-01-10 19:31:26,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:26,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:26,306 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] [2022-01-10 19:31:26,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 19:31:26,307 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash 830522202, now seen corresponding path program 1 times [2022-01-10 19:31:26,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:26,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246830566] [2022-01-10 19:31:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:26,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:26,354 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 19:31:26,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:26,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246830566] [2022-01-10 19:31:26,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246830566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:26,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:26,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:26,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707514660] [2022-01-10 19:31:26,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:26,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:26,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:26,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:26,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:26,356 INFO L87 Difference]: Start difference. First operand 4639 states and 7614 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:26,463 INFO L93 Difference]: Finished difference Result 7129 states and 11229 transitions. [2022-01-10 19:31:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:26,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:26,471 INFO L225 Difference]: With dead ends: 7129 [2022-01-10 19:31:26,471 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:26,475 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 19:31:26,476 INFO L933 BasicCegarLoop]: 5912 mSDtfsCounter, 5790 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5790 SdHoareTripleChecker+Valid, 6020 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:26,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5790 Valid, 6020 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:26,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:26,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:26,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6354616048317514) internal successors, (7582), 4638 states have internal predecessors, (7582), 0 states have call successors, (0), 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 19:31:26,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7582 transitions. [2022-01-10 19:31:26,579 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7582 transitions. Word has length 143 [2022-01-10 19:31:26,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:26,579 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7582 transitions. [2022-01-10 19:31:26,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7582 transitions. [2022-01-10 19:31:26,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:26,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:26,580 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] [2022-01-10 19:31:26,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 19:31:26,581 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:26,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1057397575, now seen corresponding path program 1 times [2022-01-10 19:31:26,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:26,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859224704] [2022-01-10 19:31:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:26,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:26,611 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 19:31:26,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:26,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859224704] [2022-01-10 19:31:26,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859224704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:26,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:26,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:26,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496506079] [2022-01-10 19:31:26,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:26,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:26,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:26,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:26,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:26,612 INFO L87 Difference]: Start difference. First operand 4639 states and 7582 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:26,721 INFO L93 Difference]: Finished difference Result 7128 states and 11164 transitions. [2022-01-10 19:31:26,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:26,729 INFO L225 Difference]: With dead ends: 7128 [2022-01-10 19:31:26,729 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:26,732 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 19:31:26,732 INFO L933 BasicCegarLoop]: 5894 mSDtfsCounter, 5772 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5772 SdHoareTripleChecker+Valid, 6001 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:26,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5772 Valid, 6001 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:26,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6285591026747195) internal successors, (7550), 4638 states have internal predecessors, (7550), 0 states have call successors, (0), 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 19:31:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7550 transitions. [2022-01-10 19:31:26,825 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7550 transitions. Word has length 143 [2022-01-10 19:31:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:26,826 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7550 transitions. [2022-01-10 19:31:26,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7550 transitions. [2022-01-10 19:31:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:26,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:26,827 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] [2022-01-10 19:31:26,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 19:31:26,827 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:26,828 INFO L85 PathProgramCache]: Analyzing trace with hash -242375784, now seen corresponding path program 1 times [2022-01-10 19:31:26,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:26,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872727534] [2022-01-10 19:31:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:26,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:26,855 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 19:31:26,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:26,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872727534] [2022-01-10 19:31:26,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872727534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:26,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:26,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:26,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222401586] [2022-01-10 19:31:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:26,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:26,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:26,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:26,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:26,857 INFO L87 Difference]: Start difference. First operand 4639 states and 7550 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:26,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:26,966 INFO L93 Difference]: Finished difference Result 7127 states and 11099 transitions. [2022-01-10 19:31:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:26,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:26,973 INFO L225 Difference]: With dead ends: 7127 [2022-01-10 19:31:26,973 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:26,978 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 19:31:26,978 INFO L933 BasicCegarLoop]: 5876 mSDtfsCounter, 5754 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5754 SdHoareTripleChecker+Valid, 5982 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:26,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5754 Valid, 5982 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:27,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6216566005176876) internal successors, (7518), 4638 states have internal predecessors, (7518), 0 states have call successors, (0), 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 19:31:27,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7518 transitions. [2022-01-10 19:31:27,079 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7518 transitions. Word has length 143 [2022-01-10 19:31:27,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:27,079 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7518 transitions. [2022-01-10 19:31:27,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7518 transitions. [2022-01-10 19:31:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:27,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:27,081 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] [2022-01-10 19:31:27,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 19:31:27,081 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -686521481, now seen corresponding path program 1 times [2022-01-10 19:31:27,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:27,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89172503] [2022-01-10 19:31:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:27,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:27,199 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 19:31:27,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:27,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89172503] [2022-01-10 19:31:27,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89172503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:27,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:27,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:27,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891177851] [2022-01-10 19:31:27,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:27,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:27,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:27,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:27,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:27,201 INFO L87 Difference]: Start difference. First operand 4639 states and 7518 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:27,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:27,420 INFO L93 Difference]: Finished difference Result 7126 states and 11034 transitions. [2022-01-10 19:31:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:27,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:27,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:27,429 INFO L225 Difference]: With dead ends: 7126 [2022-01-10 19:31:27,429 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:27,433 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 19:31:27,433 INFO L933 BasicCegarLoop]: 5858 mSDtfsCounter, 5736 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5736 SdHoareTripleChecker+Valid, 5963 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:27,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5736 Valid, 5963 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:27,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:27,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6147540983606556) internal successors, (7486), 4638 states have internal predecessors, (7486), 0 states have call successors, (0), 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 19:31:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7486 transitions. [2022-01-10 19:31:27,585 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7486 transitions. Word has length 143 [2022-01-10 19:31:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:27,585 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7486 transitions. [2022-01-10 19:31:27,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7486 transitions. [2022-01-10 19:31:27,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:27,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:27,587 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] [2022-01-10 19:31:27,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 19:31:27,587 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:27,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:27,587 INFO L85 PathProgramCache]: Analyzing trace with hash -450843306, now seen corresponding path program 1 times [2022-01-10 19:31:27,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:27,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452195174] [2022-01-10 19:31:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:27,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:27,629 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 19:31:27,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:27,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452195174] [2022-01-10 19:31:27,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452195174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:27,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:27,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:27,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760893026] [2022-01-10 19:31:27,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:27,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:27,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:27,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:27,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:27,631 INFO L87 Difference]: Start difference. First operand 4639 states and 7486 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:27,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:27,808 INFO L93 Difference]: Finished difference Result 7125 states and 10969 transitions. [2022-01-10 19:31:27,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:27,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:27,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:27,817 INFO L225 Difference]: With dead ends: 7125 [2022-01-10 19:31:27,817 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:27,822 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 19:31:27,823 INFO L933 BasicCegarLoop]: 5840 mSDtfsCounter, 5718 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5718 SdHoareTripleChecker+Valid, 5944 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:27,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5718 Valid, 5944 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:27,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6078515962036237) internal successors, (7454), 4638 states have internal predecessors, (7454), 0 states have call successors, (0), 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 19:31:27,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7454 transitions. [2022-01-10 19:31:27,966 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7454 transitions. Word has length 143 [2022-01-10 19:31:27,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:27,966 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7454 transitions. [2022-01-10 19:31:27,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7454 transitions. [2022-01-10 19:31:27,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:27,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:27,968 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] [2022-01-10 19:31:27,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 19:31:27,968 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:27,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:27,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1941539765, now seen corresponding path program 1 times [2022-01-10 19:31:27,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:27,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588647059] [2022-01-10 19:31:27,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:27,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:28,010 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 19:31:28,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:28,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588647059] [2022-01-10 19:31:28,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588647059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:28,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:28,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:28,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848544242] [2022-01-10 19:31:28,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:28,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:28,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:28,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:28,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:28,013 INFO L87 Difference]: Start difference. First operand 4639 states and 7454 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:28,171 INFO L93 Difference]: Finished difference Result 7124 states and 10904 transitions. [2022-01-10 19:31:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:28,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:28,180 INFO L225 Difference]: With dead ends: 7124 [2022-01-10 19:31:28,180 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:28,183 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 19:31:28,183 INFO L933 BasicCegarLoop]: 5822 mSDtfsCounter, 5700 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5700 SdHoareTripleChecker+Valid, 5925 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:28,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5700 Valid, 5925 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:28,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:28,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.6009490940465918) internal successors, (7422), 4638 states have internal predecessors, (7422), 0 states have call successors, (0), 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 19:31:28,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7422 transitions. [2022-01-10 19:31:28,325 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7422 transitions. Word has length 143 [2022-01-10 19:31:28,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:28,325 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7422 transitions. [2022-01-10 19:31:28,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:28,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7422 transitions. [2022-01-10 19:31:28,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:28,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:28,326 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] [2022-01-10 19:31:28,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 19:31:28,327 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:28,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1938888812, now seen corresponding path program 1 times [2022-01-10 19:31:28,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:28,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874243926] [2022-01-10 19:31:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:28,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:28,367 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 19:31:28,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:28,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874243926] [2022-01-10 19:31:28,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874243926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:28,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:28,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:28,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589484765] [2022-01-10 19:31:28,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:28,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:28,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:28,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:28,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:28,369 INFO L87 Difference]: Start difference. First operand 4639 states and 7422 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:28,526 INFO L93 Difference]: Finished difference Result 7122 states and 10837 transitions. [2022-01-10 19:31:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:28,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:28,534 INFO L225 Difference]: With dead ends: 7122 [2022-01-10 19:31:28,535 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:28,539 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 19:31:28,539 INFO L933 BasicCegarLoop]: 5804 mSDtfsCounter, 5681 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5681 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:28,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5681 Valid, 5906 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.5940465918895599) internal successors, (7390), 4638 states have internal predecessors, (7390), 0 states have call successors, (0), 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 19:31:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7390 transitions. [2022-01-10 19:31:28,694 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7390 transitions. Word has length 143 [2022-01-10 19:31:28,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:28,694 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7390 transitions. [2022-01-10 19:31:28,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:28,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7390 transitions. [2022-01-10 19:31:28,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:28,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:28,696 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] [2022-01-10 19:31:28,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 19:31:28,697 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:28,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:28,697 INFO L85 PathProgramCache]: Analyzing trace with hash -439848461, now seen corresponding path program 1 times [2022-01-10 19:31:28,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:28,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757934463] [2022-01-10 19:31:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:28,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:28,731 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 19:31:28,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:28,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757934463] [2022-01-10 19:31:28,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757934463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:28,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:28,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:28,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519019505] [2022-01-10 19:31:28,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:28,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:28,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:28,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:28,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:28,733 INFO L87 Difference]: Start difference. First operand 4639 states and 7390 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:28,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:28,850 INFO L93 Difference]: Finished difference Result 7121 states and 10772 transitions. [2022-01-10 19:31:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:28,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:28,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:28,858 INFO L225 Difference]: With dead ends: 7121 [2022-01-10 19:31:28,859 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:28,862 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 19:31:28,862 INFO L933 BasicCegarLoop]: 5786 mSDtfsCounter, 5663 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5663 SdHoareTripleChecker+Valid, 5887 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:28,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5663 Valid, 5887 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:28,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:28,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.587144089732528) internal successors, (7358), 4638 states have internal predecessors, (7358), 0 states have call successors, (0), 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 19:31:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7358 transitions. [2022-01-10 19:31:28,978 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7358 transitions. Word has length 143 [2022-01-10 19:31:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:28,978 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7358 transitions. [2022-01-10 19:31:28,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7358 transitions. [2022-01-10 19:31:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:28,979 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:28,980 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] [2022-01-10 19:31:28,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 19:31:28,980 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:28,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1209044306, now seen corresponding path program 1 times [2022-01-10 19:31:28,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:28,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367200519] [2022-01-10 19:31:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:28,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:29,015 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 19:31:29,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:29,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367200519] [2022-01-10 19:31:29,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367200519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:29,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:29,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:29,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725759780] [2022-01-10 19:31:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:29,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:29,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:29,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:29,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:29,018 INFO L87 Difference]: Start difference. First operand 4639 states and 7358 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:29,139 INFO L93 Difference]: Finished difference Result 7120 states and 10707 transitions. [2022-01-10 19:31:29,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:29,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:29,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:29,147 INFO L225 Difference]: With dead ends: 7120 [2022-01-10 19:31:29,147 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:29,151 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 19:31:29,151 INFO L933 BasicCegarLoop]: 5768 mSDtfsCounter, 5645 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5645 SdHoareTripleChecker+Valid, 5868 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:29,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5645 Valid, 5868 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:29,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:29,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.580241587575496) internal successors, (7326), 4638 states have internal predecessors, (7326), 0 states have call successors, (0), 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 19:31:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7326 transitions. [2022-01-10 19:31:29,328 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7326 transitions. Word has length 143 [2022-01-10 19:31:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:29,328 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7326 transitions. [2022-01-10 19:31:29,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7326 transitions. [2022-01-10 19:31:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:29,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:29,329 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] [2022-01-10 19:31:29,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 19:31:29,329 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:29,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:29,330 INFO L85 PathProgramCache]: Analyzing trace with hash 103229554, now seen corresponding path program 1 times [2022-01-10 19:31:29,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:29,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918508922] [2022-01-10 19:31:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:29,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:31:29,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:29,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918508922] [2022-01-10 19:31:29,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918508922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:29,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:29,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:29,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506641708] [2022-01-10 19:31:29,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:29,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:29,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:29,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:29,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:29,375 INFO L87 Difference]: Start difference. First operand 4639 states and 7326 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:29,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:29,494 INFO L93 Difference]: Finished difference Result 7119 states and 10642 transitions. [2022-01-10 19:31:29,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:29,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:29,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:29,502 INFO L225 Difference]: With dead ends: 7119 [2022-01-10 19:31:29,502 INFO L226 Difference]: Without dead ends: 4639 [2022-01-10 19:31:29,505 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 19:31:29,506 INFO L933 BasicCegarLoop]: 5750 mSDtfsCounter, 5627 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5627 SdHoareTripleChecker+Valid, 5849 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:29,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5627 Valid, 5849 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-01-10 19:31:29,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-01-10 19:31:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4636 states have (on average 1.5733390854184641) internal successors, (7294), 4638 states have internal predecessors, (7294), 0 states have call successors, (0), 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 19:31:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 7294 transitions. [2022-01-10 19:31:29,622 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 7294 transitions. Word has length 143 [2022-01-10 19:31:29,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:29,623 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 7294 transitions. [2022-01-10 19:31:29,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:29,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 7294 transitions. [2022-01-10 19:31:29,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:29,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:29,624 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] [2022-01-10 19:31:29,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 19:31:29,624 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:29,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:29,624 INFO L85 PathProgramCache]: Analyzing trace with hash -548634031, now seen corresponding path program 1 times [2022-01-10 19:31:29,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:29,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374631960] [2022-01-10 19:31:29,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:29,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:29,665 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 19:31:29,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:29,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374631960] [2022-01-10 19:31:29,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374631960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:29,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:29,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:29,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257513854] [2022-01-10 19:31:29,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:29,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:29,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:29,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:29,667 INFO L87 Difference]: Start difference. First operand 4639 states and 7294 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:29,873 INFO L93 Difference]: Finished difference Result 9268 states and 13421 transitions. [2022-01-10 19:31:29,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:29,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:29,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:29,884 INFO L225 Difference]: With dead ends: 9268 [2022-01-10 19:31:29,884 INFO L226 Difference]: Without dead ends: 6832 [2022-01-10 19:31:29,889 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 19:31:29,889 INFO L933 BasicCegarLoop]: 5751 mSDtfsCounter, 5545 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5545 SdHoareTripleChecker+Valid, 7353 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:29,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5545 Valid, 7353 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:29,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2022-01-10 19:31:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6824. [2022-01-10 19:31:30,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6824 states, 6821 states have (on average 1.489664272100865) internal successors, (10161), 6823 states have internal predecessors, (10161), 0 states have call successors, (0), 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 19:31:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6824 states to 6824 states and 10161 transitions. [2022-01-10 19:31:30,093 INFO L78 Accepts]: Start accepts. Automaton has 6824 states and 10161 transitions. Word has length 143 [2022-01-10 19:31:30,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:30,093 INFO L470 AbstractCegarLoop]: Abstraction has 6824 states and 10161 transitions. [2022-01-10 19:31:30,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:30,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6824 states and 10161 transitions. [2022-01-10 19:31:30,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:30,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:30,094 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] [2022-01-10 19:31:30,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 19:31:30,094 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1888678320, now seen corresponding path program 1 times [2022-01-10 19:31:30,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:30,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150825886] [2022-01-10 19:31:30,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:30,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:30,157 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 19:31:30,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:30,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150825886] [2022-01-10 19:31:30,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150825886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:30,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:30,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:31:30,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210027681] [2022-01-10 19:31:30,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:30,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:31:30,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:30,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:31:30,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:31:30,159 INFO L87 Difference]: Start difference. First operand 6824 states and 10161 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:30,645 INFO L93 Difference]: Finished difference Result 14924 states and 20858 transitions. [2022-01-10 19:31:30,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:31:30,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:30,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:30,662 INFO L225 Difference]: With dead ends: 14924 [2022-01-10 19:31:30,662 INFO L226 Difference]: Without dead ends: 10307 [2022-01-10 19:31:30,671 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 19:31:30,672 INFO L933 BasicCegarLoop]: 5803 mSDtfsCounter, 4826 mSDsluCounter, 18092 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4826 SdHoareTripleChecker+Valid, 23895 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:30,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4826 Valid, 23895 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10307 states. [2022-01-10 19:31:30,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10307 to 6899. [2022-01-10 19:31:30,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6896 states have (on average 1.4808584686774942) internal successors, (10212), 6898 states have internal predecessors, (10212), 0 states have call successors, (0), 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 19:31:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 10212 transitions. [2022-01-10 19:31:30,931 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 10212 transitions. Word has length 143 [2022-01-10 19:31:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:30,932 INFO L470 AbstractCegarLoop]: Abstraction has 6899 states and 10212 transitions. [2022-01-10 19:31:30,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 10212 transitions. [2022-01-10 19:31:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:30,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:30,933 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] [2022-01-10 19:31:30,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 19:31:30,933 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:30,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:30,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2097376623, now seen corresponding path program 1 times [2022-01-10 19:31:30,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:30,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137951613] [2022-01-10 19:31:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:30,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:30,985 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 19:31:30,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:30,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137951613] [2022-01-10 19:31:30,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137951613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:30,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:30,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:30,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555323179] [2022-01-10 19:31:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:30,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:30,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:30,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:30,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:30,987 INFO L87 Difference]: Start difference. First operand 6899 states and 10212 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:31,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:31,269 INFO L93 Difference]: Finished difference Result 11657 states and 16434 transitions. [2022-01-10 19:31:31,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:31,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:31,281 INFO L225 Difference]: With dead ends: 11657 [2022-01-10 19:31:31,281 INFO L226 Difference]: Without dead ends: 6899 [2022-01-10 19:31:31,291 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 19:31:31,292 INFO L933 BasicCegarLoop]: 5754 mSDtfsCounter, 5650 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5650 SdHoareTripleChecker+Valid, 5754 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 19:31:31,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5650 Valid, 5754 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6899 states. [2022-01-10 19:31:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6899 to 6899. [2022-01-10 19:31:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6896 states have (on average 1.4788283062645011) internal successors, (10198), 6898 states have internal predecessors, (10198), 0 states have call successors, (0), 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 19:31:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 10198 transitions. [2022-01-10 19:31:31,525 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 10198 transitions. Word has length 143 [2022-01-10 19:31:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:31,525 INFO L470 AbstractCegarLoop]: Abstraction has 6899 states and 10198 transitions. [2022-01-10 19:31:31,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 10198 transitions. [2022-01-10 19:31:31,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:31,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:31,526 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] [2022-01-10 19:31:31,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 19:31:31,526 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:31,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:31,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1071884624, now seen corresponding path program 1 times [2022-01-10 19:31:31,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:31,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880208309] [2022-01-10 19:31:31,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:31,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:31,566 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 19:31:31,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:31,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880208309] [2022-01-10 19:31:31,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880208309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:31,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:31,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:31,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938205310] [2022-01-10 19:31:31,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:31,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:31,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:31,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:31,568 INFO L87 Difference]: Start difference. First operand 6899 states and 10198 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:31,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:31,809 INFO L93 Difference]: Finished difference Result 11574 states and 16300 transitions. [2022-01-10 19:31:31,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:31,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:31,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:31,823 INFO L225 Difference]: With dead ends: 11574 [2022-01-10 19:31:31,824 INFO L226 Difference]: Without dead ends: 6830 [2022-01-10 19:31:31,829 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 19:31:31,830 INFO L933 BasicCegarLoop]: 5713 mSDtfsCounter, 5505 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5505 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:31,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5505 Valid, 5811 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2022-01-10 19:31:32,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 6830. [2022-01-10 19:31:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6830 states, 6827 states have (on average 1.4748791562911967) internal successors, (10069), 6829 states have internal predecessors, (10069), 0 states have call successors, (0), 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 19:31:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6830 states to 6830 states and 10069 transitions. [2022-01-10 19:31:32,061 INFO L78 Accepts]: Start accepts. Automaton has 6830 states and 10069 transitions. Word has length 143 [2022-01-10 19:31:32,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:32,062 INFO L470 AbstractCegarLoop]: Abstraction has 6830 states and 10069 transitions. [2022-01-10 19:31:32,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:32,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6830 states and 10069 transitions. [2022-01-10 19:31:32,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 19:31:32,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:32,063 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] [2022-01-10 19:31:32,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 19:31:32,063 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:32,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:32,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1480708849, now seen corresponding path program 1 times [2022-01-10 19:31:32,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:32,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308840115] [2022-01-10 19:31:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:32,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:32,111 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 19:31:32,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:32,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308840115] [2022-01-10 19:31:32,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308840115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:32,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:32,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:32,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918311870] [2022-01-10 19:31:32,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:32,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:32,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:32,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:32,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:32,113 INFO L87 Difference]: Start difference. First operand 6830 states and 10069 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:32,540 INFO L93 Difference]: Finished difference Result 15985 states and 21955 transitions. [2022-01-10 19:31:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:32,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-10 19:31:32,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:32,558 INFO L225 Difference]: With dead ends: 15985 [2022-01-10 19:31:32,559 INFO L226 Difference]: Without dead ends: 11316 [2022-01-10 19:31:32,566 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 19:31:32,566 INFO L933 BasicCegarLoop]: 5713 mSDtfsCounter, 5543 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5543 SdHoareTripleChecker+Valid, 7285 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:32,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5543 Valid, 7285 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2022-01-10 19:31:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 11014. [2022-01-10 19:31:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11014 states, 11011 states have (on average 1.4039596766869493) internal successors, (15459), 11013 states have internal predecessors, (15459), 0 states have call successors, (0), 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 19:31:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11014 states to 11014 states and 15459 transitions. [2022-01-10 19:31:33,084 INFO L78 Accepts]: Start accepts. Automaton has 11014 states and 15459 transitions. Word has length 143 [2022-01-10 19:31:33,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:33,084 INFO L470 AbstractCegarLoop]: Abstraction has 11014 states and 15459 transitions. [2022-01-10 19:31:33,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 19:31:33,084 INFO L276 IsEmpty]: Start isEmpty. Operand 11014 states and 15459 transitions. [2022-01-10 19:31:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 19:31:33,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:33,090 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] [2022-01-10 19:31:33,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 19:31:33,090 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:33,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1551568667, now seen corresponding path program 1 times [2022-01-10 19:31:33,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:33,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424220595] [2022-01-10 19:31:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:33,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:33,143 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 19:31:33,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:33,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424220595] [2022-01-10 19:31:33,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424220595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:33,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:33,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:33,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331507520] [2022-01-10 19:31:33,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:33,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:33,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:33,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:33,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:33,144 INFO L87 Difference]: Start difference. First operand 11014 states and 15459 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 19:31:33,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:33,882 INFO L93 Difference]: Finished difference Result 28448 states and 38042 transitions. [2022-01-10 19:31:33,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:33,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2022-01-10 19:31:33,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:33,909 INFO L225 Difference]: With dead ends: 28448 [2022-01-10 19:31:33,909 INFO L226 Difference]: Without dead ends: 19601 [2022-01-10 19:31:33,923 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 19:31:33,924 INFO L933 BasicCegarLoop]: 5710 mSDtfsCounter, 5582 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5582 SdHoareTripleChecker+Valid, 7282 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:33,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5582 Valid, 7282 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:33,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19601 states. [2022-01-10 19:31:34,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19601 to 19033. [2022-01-10 19:31:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19033 states, 19030 states have (on average 1.355386232264845) internal successors, (25793), 19032 states have internal predecessors, (25793), 0 states have call successors, (0), 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 19:31:34,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19033 states to 19033 states and 25793 transitions. [2022-01-10 19:31:34,781 INFO L78 Accepts]: Start accepts. Automaton has 19033 states and 25793 transitions. Word has length 232 [2022-01-10 19:31:34,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:34,781 INFO L470 AbstractCegarLoop]: Abstraction has 19033 states and 25793 transitions. [2022-01-10 19:31:34,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 19:31:34,782 INFO L276 IsEmpty]: Start isEmpty. Operand 19033 states and 25793 transitions. [2022-01-10 19:31:34,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 19:31:34,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:34,790 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] [2022-01-10 19:31:34,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 19:31:34,790 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:34,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:34,790 INFO L85 PathProgramCache]: Analyzing trace with hash -210624260, now seen corresponding path program 1 times [2022-01-10 19:31:34,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:34,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674767768] [2022-01-10 19:31:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:34,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:34,861 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 19:31:34,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:34,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674767768] [2022-01-10 19:31:34,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674767768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:34,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:34,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:31:34,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69487722] [2022-01-10 19:31:34,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:34,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:31:34,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:34,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:31:34,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:31:34,863 INFO L87 Difference]: Start difference. First operand 19033 states and 25793 transitions. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 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 19:31:36,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:36,459 INFO L93 Difference]: Finished difference Result 51505 states and 68071 transitions. [2022-01-10 19:31:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:31:36,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2022-01-10 19:31:36,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:36,505 INFO L225 Difference]: With dead ends: 51505 [2022-01-10 19:31:36,505 INFO L226 Difference]: Without dead ends: 34705 [2022-01-10 19:31:36,525 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 19:31:36,526 INFO L933 BasicCegarLoop]: 5678 mSDtfsCounter, 3628 mSDsluCounter, 16722 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 22400 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:36,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3628 Valid, 22400 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:36,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34705 states. [2022-01-10 19:31:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34705 to 19081. [2022-01-10 19:31:37,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19081 states, 19078 states have (on average 1.3460530453925987) internal successors, (25680), 19080 states have internal predecessors, (25680), 0 states have call successors, (0), 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 19:31:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19081 states to 19081 states and 25680 transitions. [2022-01-10 19:31:37,590 INFO L78 Accepts]: Start accepts. Automaton has 19081 states and 25680 transitions. Word has length 232 [2022-01-10 19:31:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:37,590 INFO L470 AbstractCegarLoop]: Abstraction has 19081 states and 25680 transitions. [2022-01-10 19:31:37,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 0 states have call successors, (0), 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 19:31:37,591 INFO L276 IsEmpty]: Start isEmpty. Operand 19081 states and 25680 transitions. [2022-01-10 19:31:37,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 19:31:37,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:37,597 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] [2022-01-10 19:31:37,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 19:31:37,597 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:37,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -471990278, now seen corresponding path program 1 times [2022-01-10 19:31:37,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:37,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126500141] [2022-01-10 19:31:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:37,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:37,648 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 19:31:37,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:37,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126500141] [2022-01-10 19:31:37,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126500141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:37,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:37,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:37,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891877657] [2022-01-10 19:31:37,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:37,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:37,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:37,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:37,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:37,649 INFO L87 Difference]: Start difference. First operand 19081 states and 25680 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 19:31:39,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:39,493 INFO L93 Difference]: Finished difference Result 52263 states and 67856 transitions. [2022-01-10 19:31:39,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:39,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2022-01-10 19:31:39,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:39,541 INFO L225 Difference]: With dead ends: 52263 [2022-01-10 19:31:39,542 INFO L226 Difference]: Without dead ends: 35439 [2022-01-10 19:31:39,564 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 19:31:39,565 INFO L933 BasicCegarLoop]: 5999 mSDtfsCounter, 5557 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5557 SdHoareTripleChecker+Valid, 7721 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:39,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5557 Valid, 7721 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35439 states. [2022-01-10 19:31:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35439 to 34903. [2022-01-10 19:31:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34903 states, 34900 states have (on average 1.3056733524355302) internal successors, (45568), 34902 states have internal predecessors, (45568), 0 states have call successors, (0), 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 19:31:41,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34903 states to 34903 states and 45568 transitions. [2022-01-10 19:31:41,525 INFO L78 Accepts]: Start accepts. Automaton has 34903 states and 45568 transitions. Word has length 232 [2022-01-10 19:31:41,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:41,525 INFO L470 AbstractCegarLoop]: Abstraction has 34903 states and 45568 transitions. [2022-01-10 19:31:41,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 19:31:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 34903 states and 45568 transitions. [2022-01-10 19:31:41,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-01-10 19:31:41,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:41,539 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] [2022-01-10 19:31:41,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 19:31:41,539 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:41,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash -597704200, now seen corresponding path program 1 times [2022-01-10 19:31:41,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:41,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864974923] [2022-01-10 19:31:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:41,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:41,569 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 19:31:41,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:41,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864974923] [2022-01-10 19:31:41,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864974923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:41,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:41,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:41,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154190051] [2022-01-10 19:31:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:41,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:41,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:41,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:41,571 INFO L87 Difference]: Start difference. First operand 34903 states and 45568 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 19:31:43,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:43,327 INFO L93 Difference]: Finished difference Result 67505 states and 86959 transitions. [2022-01-10 19:31:43,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:43,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 232 [2022-01-10 19:31:43,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:43,382 INFO L225 Difference]: With dead ends: 67505 [2022-01-10 19:31:43,382 INFO L226 Difference]: Without dead ends: 34773 [2022-01-10 19:31:43,410 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 19:31:43,411 INFO L933 BasicCegarLoop]: 5711 mSDtfsCounter, 1749 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 9669 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 19:31:43,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 9669 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:43,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34773 states. [2022-01-10 19:31:45,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34773 to 34773. [2022-01-10 19:31:45,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34773 states, 34770 states have (on average 1.306039689387403) internal successors, (45411), 34772 states have internal predecessors, (45411), 0 states have call successors, (0), 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 19:31:45,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34773 states to 34773 states and 45411 transitions. [2022-01-10 19:31:45,724 INFO L78 Accepts]: Start accepts. Automaton has 34773 states and 45411 transitions. Word has length 232 [2022-01-10 19:31:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:45,724 INFO L470 AbstractCegarLoop]: Abstraction has 34773 states and 45411 transitions. [2022-01-10 19:31:45,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 19:31:45,724 INFO L276 IsEmpty]: Start isEmpty. Operand 34773 states and 45411 transitions. [2022-01-10 19:31:45,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-01-10 19:31:45,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:45,735 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] [2022-01-10 19:31:45,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 19:31:45,736 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:45,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:45,736 INFO L85 PathProgramCache]: Analyzing trace with hash -904002354, now seen corresponding path program 1 times [2022-01-10 19:31:45,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:45,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856773129] [2022-01-10 19:31:45,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:45,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:45,784 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 19:31:45,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:45,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856773129] [2022-01-10 19:31:45,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856773129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:45,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:45,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:45,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025365358] [2022-01-10 19:31:45,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:45,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:45,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:45,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:45,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:45,785 INFO L87 Difference]: Start difference. First operand 34773 states and 45411 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 19:31:49,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:49,177 INFO L93 Difference]: Finished difference Result 98782 states and 126353 transitions. [2022-01-10 19:31:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:49,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2022-01-10 19:31:49,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:49,265 INFO L225 Difference]: With dead ends: 98782 [2022-01-10 19:31:49,266 INFO L226 Difference]: Without dead ends: 66266 [2022-01-10 19:31:49,294 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 19:31:49,294 INFO L933 BasicCegarLoop]: 6073 mSDtfsCounter, 5556 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5556 SdHoareTripleChecker+Valid, 7793 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:49,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5556 Valid, 7793 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66266 states. [2022-01-10 19:31:53,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66266 to 64358. [2022-01-10 19:31:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64358 states, 64355 states have (on average 1.2837075596301764) internal successors, (82613), 64357 states have internal predecessors, (82613), 0 states have call successors, (0), 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 19:31:53,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64358 states to 64358 states and 82613 transitions. [2022-01-10 19:31:53,310 INFO L78 Accepts]: Start accepts. Automaton has 64358 states and 82613 transitions. Word has length 233 [2022-01-10 19:31:53,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:53,310 INFO L470 AbstractCegarLoop]: Abstraction has 64358 states and 82613 transitions. [2022-01-10 19:31:53,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 19:31:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 64358 states and 82613 transitions. [2022-01-10 19:31:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-01-10 19:31:53,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:53,332 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] [2022-01-10 19:31:53,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 19:31:53,332 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:53,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:53,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1208161711, now seen corresponding path program 1 times [2022-01-10 19:31:53,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:53,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357615238] [2022-01-10 19:31:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:53,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:53,368 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 19:31:53,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:53,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357615238] [2022-01-10 19:31:53,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357615238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:53,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:53,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:53,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634806568] [2022-01-10 19:31:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:53,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:53,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:53,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:53,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:53,370 INFO L87 Difference]: Start difference. First operand 64358 states and 82613 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 19:31:57,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:57,203 INFO L93 Difference]: Finished difference Result 126409 states and 161043 transitions. [2022-01-10 19:31:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:57,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 233 [2022-01-10 19:31:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:57,302 INFO L225 Difference]: With dead ends: 126409 [2022-01-10 19:31:57,302 INFO L226 Difference]: Without dead ends: 64229 [2022-01-10 19:31:57,342 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 19:31:57,343 INFO L933 BasicCegarLoop]: 5710 mSDtfsCounter, 1747 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 9668 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 19:31:57,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1747 Valid, 9668 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:57,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64229 states. [2022-01-10 19:32:01,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64229 to 64229. [2022-01-10 19:32:01,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64229 states, 64226 states have (on average 1.2838725749696385) internal successors, (82458), 64228 states have internal predecessors, (82458), 0 states have call successors, (0), 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 19:32:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64229 states to 64229 states and 82458 transitions. [2022-01-10 19:32:01,243 INFO L78 Accepts]: Start accepts. Automaton has 64229 states and 82458 transitions. Word has length 233 [2022-01-10 19:32:01,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:32:01,243 INFO L470 AbstractCegarLoop]: Abstraction has 64229 states and 82458 transitions. [2022-01-10 19:32:01,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 19:32:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 64229 states and 82458 transitions. [2022-01-10 19:32:01,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-01-10 19:32:01,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:32:01,263 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] [2022-01-10 19:32:01,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 19:32:01,263 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:32:01,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:32:01,264 INFO L85 PathProgramCache]: Analyzing trace with hash 965497065, now seen corresponding path program 1 times [2022-01-10 19:32:01,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:32:01,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051669418] [2022-01-10 19:32:01,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:32:01,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:32:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:32:01,309 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 19:32:01,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:32:01,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051669418] [2022-01-10 19:32:01,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051669418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:32:01,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:32:01,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:32:01,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662522270] [2022-01-10 19:32:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:32:01,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:32:01,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:32:01,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:32:01,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:32:01,311 INFO L87 Difference]: Start difference. First operand 64229 states and 82458 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 19:32:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:32:08,053 INFO L93 Difference]: Finished difference Result 185981 states and 235990 transitions. [2022-01-10 19:32:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:32:08,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 234 [2022-01-10 19:32:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:32:08,247 INFO L225 Difference]: With dead ends: 185981 [2022-01-10 19:32:08,248 INFO L226 Difference]: Without dead ends: 124009 [2022-01-10 19:32:08,305 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 19:32:08,305 INFO L933 BasicCegarLoop]: 6125 mSDtfsCounter, 5554 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5554 SdHoareTripleChecker+Valid, 7843 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:32:08,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5554 Valid, 7843 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:32:08,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124009 states.