/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_label43+token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:28:45,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:28:45,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:28:45,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 19:28:45,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 19:28:45,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 19:28:45,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 19:28:45,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 19:28:45,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 19:28:45,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 19:28:45,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 19:28:45,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 19:28:45,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:28:45,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:28:45,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:28:45,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:28:45,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:28:45,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:28:45,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:28:45,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:28:45,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:28:45,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:28:45,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:28:45,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:28:45,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 19:28:45,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 19:28:45,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 19:28:45,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 19:28:45,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 19:28:45,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 19:28:45,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 19:28:45,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 19:28:45,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 19:28:45,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 19:28:45,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 19:28:45,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 19:28:45,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 19:28:45,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 19:28:45,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:28:45,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:28:45,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:28:45,512 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 19:28:45,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:28:45,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:28:45,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:28:45,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:28:45,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:28:45,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:28:45,540 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:28:45,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:28:45,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:28:45,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:28:45,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:28:45,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:28:45,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:28:45,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:28:45,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:28:45,543 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:28:45,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:28:45,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:28:45,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:28:45,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:28:45,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:28:45,718 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:28:45,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2022-01-10 19:28:45,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d07534f0/339ca2a5a33c487c8f208d62069c4907/FLAG81a7b64e5 [2022-01-10 19:28:46,480 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:28:46,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2022-01-10 19:28:46,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d07534f0/339ca2a5a33c487c8f208d62069c4907/FLAG81a7b64e5 [2022-01-10 19:28:47,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d07534f0/339ca2a5a33c487c8f208d62069c4907 [2022-01-10 19:28:47,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:28:47,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:28:47,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:28:47,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:28:47,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:28:47,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:28:47" (1/1) ... [2022-01-10 19:28:47,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1222a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:47, skipping insertion in model container [2022-01-10 19:28:47,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:28:47" (1/1) ... [2022-01-10 19:28:47,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:28:47,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:28:48,503 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_label43+token_ring.15.cil.c[381679,381692] [2022-01-10 19:28:48,528 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_label43+token_ring.15.cil.c[383339,383352] [2022-01-10 19:28:48,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:28:48,808 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:28:49,363 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_label43+token_ring.15.cil.c[381679,381692] [2022-01-10 19:28:49,366 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_label43+token_ring.15.cil.c[383339,383352] [2022-01-10 19:28:49,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:28:49,447 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:28:49,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49 WrapperNode [2022-01-10 19:28:49,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:28:49,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:28:49,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:28:49,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:28:49,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:49,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:49,916 INFO L137 Inliner]: procedures = 71, calls = 81, calls flagged for inlining = 76, calls inlined = 313, statements flattened = 16998 [2022-01-10 19:28:49,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:28:49,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:28:49,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:28:49,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:28:49,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:49,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:50,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:50,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:50,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:50,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:50,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:50,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:28:50,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:28:50,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:28:50,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:28:50,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (1/1) ... [2022-01-10 19:28:50,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:28:50,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:28:50,418 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 19:28:50,426 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 19:28:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:28:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:28:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:28:50,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:28:50,556 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:28:50,558 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:28:57,967 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:28:57,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:28:57,994 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-01-10 19:28:57,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:28:57 BoogieIcfgContainer [2022-01-10 19:28:57,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:28:57,999 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:28:57,999 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:28:58,000 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:28:58,002 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:28:57" (1/1) ... [2022-01-10 19:28:59,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:28:59 BasicIcfg [2022-01-10 19:28:59,244 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:28:59,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:28:59,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:28:59,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:28:59,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:28:47" (1/4) ... [2022-01-10 19:28:59,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e5590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:28:59, skipping insertion in model container [2022-01-10 19:28:59,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:28:49" (2/4) ... [2022-01-10 19:28:59,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e5590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:28:59, skipping insertion in model container [2022-01-10 19:28:59,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:28:57" (3/4) ... [2022-01-10 19:28:59,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e5590a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:28:59, skipping insertion in model container [2022-01-10 19:28:59,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:28:59" (4/4) ... [2022-01-10 19:28:59,250 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.15.cil.cTransformedIcfg [2022-01-10 19:28:59,253 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:28:59,253 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 19:28:59,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:28:59,301 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 19:28:59,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 19:28:59,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 4214 states, 4210 states have (on average 1.6912114014251782) internal successors, (7120), 4213 states have internal predecessors, (7120), 0 states have call successors, (0), 0 states 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 19:28:59,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:28:59,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:28:59,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:28:59,365 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 19:28:59,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:28:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2029452267, now seen corresponding path program 1 times [2022-01-10 19:28:59,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:28:59,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832890] [2022-01-10 19:28:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:28:59,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:28:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:28:59,698 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 19:28:59,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:28:59,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832890] [2022-01-10 19:28:59,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:28:59,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:28:59,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:28:59,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126414553] [2022-01-10 19:28:59,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:28:59,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:28:59,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:28:59,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:28:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:28:59,739 INFO L87 Difference]: Start difference. First operand has 4214 states, 4210 states have (on average 1.6912114014251782) internal successors, (7120), 4213 states have internal predecessors, (7120), 0 states have call successors, (0), 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 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:00,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:00,104 INFO L93 Difference]: Finished difference Result 10160 states and 16806 transitions. [2022-01-10 19:29:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:00,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:00,142 INFO L225 Difference]: With dead ends: 10160 [2022-01-10 19:29:00,142 INFO L226 Difference]: Without dead ends: 5896 [2022-01-10 19:29:00,154 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 19:29:00,158 INFO L933 BasicCegarLoop]: 7015 mSDtfsCounter, 6853 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6853 SdHoareTripleChecker+Valid, 9722 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:00,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6853 Valid, 9722 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-01-10 19:29:00,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5892. [2022-01-10 19:29:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6155544235014434) internal successors, (9514), 5891 states have internal predecessors, (9514), 0 states have call successors, (0), 0 states 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 19:29:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9514 transitions. [2022-01-10 19:29:00,358 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9514 transitions. Word has length 176 [2022-01-10 19:29:00,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:00,359 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9514 transitions. [2022-01-10 19:29:00,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9514 transitions. [2022-01-10 19:29:00,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:00,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:00,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:00,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:29:00,368 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 19:29:00,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:00,369 INFO L85 PathProgramCache]: Analyzing trace with hash 159812149, now seen corresponding path program 1 times [2022-01-10 19:29:00,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:00,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40079023] [2022-01-10 19:29:00,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:00,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:00,485 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 19:29:00,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:00,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40079023] [2022-01-10 19:29:00,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40079023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:00,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:00,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:00,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799023767] [2022-01-10 19:29:00,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:00,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:00,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:00,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:00,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:00,488 INFO L87 Difference]: Start difference. First operand 5892 states and 9514 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:00,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:00,605 INFO L93 Difference]: Finished difference Result 9642 states and 15034 transitions. [2022-01-10 19:29:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:00,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:00,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:00,624 INFO L225 Difference]: With dead ends: 9642 [2022-01-10 19:29:00,626 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:00,636 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 19:29:00,637 INFO L933 BasicCegarLoop]: 6942 mSDtfsCounter, 6926 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6926 SdHoareTripleChecker+Valid, 6942 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 19:29:00,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6926 Valid, 6942 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:00,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6141959585668195) internal successors, (9506), 5891 states have internal predecessors, (9506), 0 states have call successors, (0), 0 states 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 19:29:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9506 transitions. [2022-01-10 19:29:00,961 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9506 transitions. Word has length 176 [2022-01-10 19:29:00,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:00,962 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9506 transitions. [2022-01-10 19:29:00,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:00,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9506 transitions. [2022-01-10 19:29:00,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:00,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:00,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:00,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:29:00,973 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 19:29:00,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:00,973 INFO L85 PathProgramCache]: Analyzing trace with hash -600850411, now seen corresponding path program 1 times [2022-01-10 19:29:00,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:00,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111792553] [2022-01-10 19:29:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:00,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:01,050 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 19:29:01,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:01,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111792553] [2022-01-10 19:29:01,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111792553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:01,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:01,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:01,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038297936] [2022-01-10 19:29:01,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:01,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:01,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:01,053 INFO L87 Difference]: Start difference. First operand 5892 states and 9506 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:01,160 INFO L93 Difference]: Finished difference Result 9641 states and 15017 transitions. [2022-01-10 19:29:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:01,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:01,178 INFO L225 Difference]: With dead ends: 9641 [2022-01-10 19:29:01,178 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:01,188 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 19:29:01,190 INFO L933 BasicCegarLoop]: 6937 mSDtfsCounter, 6920 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6920 SdHoareTripleChecker+Valid, 6937 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 19:29:01,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6920 Valid, 6937 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6128374936321956) internal successors, (9498), 5891 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states 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 19:29:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9498 transitions. [2022-01-10 19:29:01,326 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9498 transitions. Word has length 176 [2022-01-10 19:29:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:01,327 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9498 transitions. [2022-01-10 19:29:01,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9498 transitions. [2022-01-10 19:29:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:01,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:01,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:01,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:29:01,331 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 19:29:01,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:01,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1452822069, now seen corresponding path program 1 times [2022-01-10 19:29:01,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:01,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646307636] [2022-01-10 19:29:01,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:01,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:01,403 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 19:29:01,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:01,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646307636] [2022-01-10 19:29:01,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646307636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:01,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:01,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:01,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079800974] [2022-01-10 19:29:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:01,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:01,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:01,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:01,405 INFO L87 Difference]: Start difference. First operand 5892 states and 9498 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:01,546 INFO L93 Difference]: Finished difference Result 9640 states and 15000 transitions. [2022-01-10 19:29:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:01,578 INFO L225 Difference]: With dead ends: 9640 [2022-01-10 19:29:01,578 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:01,587 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 19:29:01,592 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 6914 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6914 SdHoareTripleChecker+Valid, 6932 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 19:29:01,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6914 Valid, 6932 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:01,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:01,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:01,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6114790286975718) internal successors, (9490), 5891 states have internal predecessors, (9490), 0 states have call successors, (0), 0 states 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 19:29:01,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9490 transitions. [2022-01-10 19:29:01,842 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9490 transitions. Word has length 176 [2022-01-10 19:29:01,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:01,842 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9490 transitions. [2022-01-10 19:29:01,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:01,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9490 transitions. [2022-01-10 19:29:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:01,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:01,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:01,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:29:01,845 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 19:29:01,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:01,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2083161067, now seen corresponding path program 1 times [2022-01-10 19:29:01,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:01,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303556522] [2022-01-10 19:29:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:01,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:01,922 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 19:29:01,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:01,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303556522] [2022-01-10 19:29:01,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303556522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:01,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:01,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:01,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385943894] [2022-01-10 19:29:01,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:01,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:01,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:01,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:01,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:01,924 INFO L87 Difference]: Start difference. First operand 5892 states and 9490 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:02,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:02,076 INFO L93 Difference]: Finished difference Result 9639 states and 14983 transitions. [2022-01-10 19:29:02,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:02,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:02,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:02,086 INFO L225 Difference]: With dead ends: 9639 [2022-01-10 19:29:02,087 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:02,092 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 19:29:02,093 INFO L933 BasicCegarLoop]: 6927 mSDtfsCounter, 6908 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6908 SdHoareTripleChecker+Valid, 6927 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 19:29:02,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6908 Valid, 6927 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:02,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:02,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6101205637629479) internal successors, (9482), 5891 states have internal predecessors, (9482), 0 states have call successors, (0), 0 states 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 19:29:02,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9482 transitions. [2022-01-10 19:29:02,231 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9482 transitions. Word has length 176 [2022-01-10 19:29:02,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:02,235 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9482 transitions. [2022-01-10 19:29:02,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9482 transitions. [2022-01-10 19:29:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:02,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:02,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:02,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:29:02,238 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 19:29:02,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:02,238 INFO L85 PathProgramCache]: Analyzing trace with hash -2058677707, now seen corresponding path program 1 times [2022-01-10 19:29:02,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:02,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693838144] [2022-01-10 19:29:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:02,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:02,283 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 19:29:02,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:02,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693838144] [2022-01-10 19:29:02,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693838144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:02,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:02,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:02,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234420647] [2022-01-10 19:29:02,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:02,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:02,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:02,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:02,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:02,285 INFO L87 Difference]: Start difference. First operand 5892 states and 9482 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:02,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:02,419 INFO L93 Difference]: Finished difference Result 9638 states and 14966 transitions. [2022-01-10 19:29:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:02,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:02,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:02,428 INFO L225 Difference]: With dead ends: 9638 [2022-01-10 19:29:02,428 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:02,433 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 19:29:02,435 INFO L933 BasicCegarLoop]: 6922 mSDtfsCounter, 6902 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6902 SdHoareTripleChecker+Valid, 6922 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 19:29:02,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6902 Valid, 6922 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.608762098828324) internal successors, (9474), 5891 states have internal predecessors, (9474), 0 states have call successors, (0), 0 states 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 19:29:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9474 transitions. [2022-01-10 19:29:02,626 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9474 transitions. Word has length 176 [2022-01-10 19:29:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:02,627 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9474 transitions. [2022-01-10 19:29:02,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9474 transitions. [2022-01-10 19:29:02,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:02,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:02,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:02,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:29:02,629 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 19:29:02,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash 297416725, now seen corresponding path program 1 times [2022-01-10 19:29:02,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:02,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722105924] [2022-01-10 19:29:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:02,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:02,672 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 19:29:02,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:02,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722105924] [2022-01-10 19:29:02,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722105924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:02,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:02,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:02,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822664205] [2022-01-10 19:29:02,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:02,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:02,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:02,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:02,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:02,673 INFO L87 Difference]: Start difference. First operand 5892 states and 9474 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:02,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:02,805 INFO L93 Difference]: Finished difference Result 9637 states and 14949 transitions. [2022-01-10 19:29:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:02,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:02,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:02,817 INFO L225 Difference]: With dead ends: 9637 [2022-01-10 19:29:02,818 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:02,825 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 19:29:02,826 INFO L933 BasicCegarLoop]: 6917 mSDtfsCounter, 6896 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6896 SdHoareTripleChecker+Valid, 6917 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 19:29:02,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6896 Valid, 6917 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:02,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:02,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6074036338937001) internal successors, (9466), 5891 states have internal predecessors, (9466), 0 states have call successors, (0), 0 states 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 19:29:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9466 transitions. [2022-01-10 19:29:02,971 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9466 transitions. Word has length 176 [2022-01-10 19:29:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:02,971 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9466 transitions. [2022-01-10 19:29:02,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9466 transitions. [2022-01-10 19:29:02,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:02,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:02,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:02,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:29:02,973 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 19:29:02,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1983316660, now seen corresponding path program 1 times [2022-01-10 19:29:02,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:02,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575997441] [2022-01-10 19:29:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:02,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:03,015 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 19:29:03,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:03,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575997441] [2022-01-10 19:29:03,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575997441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:03,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:03,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:03,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431419388] [2022-01-10 19:29:03,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:03,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:03,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:03,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:03,017 INFO L87 Difference]: Start difference. First operand 5892 states and 9466 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:03,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:03,170 INFO L93 Difference]: Finished difference Result 9636 states and 14932 transitions. [2022-01-10 19:29:03,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:03,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:03,181 INFO L225 Difference]: With dead ends: 9636 [2022-01-10 19:29:03,181 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:03,187 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 19:29:03,187 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6890 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6890 SdHoareTripleChecker+Valid, 6912 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 19:29:03,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6890 Valid, 6912 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:03,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:03,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6060451689590762) internal successors, (9458), 5891 states have internal predecessors, (9458), 0 states have call successors, (0), 0 states 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 19:29:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9458 transitions. [2022-01-10 19:29:03,331 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9458 transitions. Word has length 176 [2022-01-10 19:29:03,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:03,331 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9458 transitions. [2022-01-10 19:29:03,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:03,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9458 transitions. [2022-01-10 19:29:03,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:03,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:03,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:03,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:29:03,333 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 19:29:03,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:03,334 INFO L85 PathProgramCache]: Analyzing trace with hash -168419180, now seen corresponding path program 1 times [2022-01-10 19:29:03,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:03,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295501419] [2022-01-10 19:29:03,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:03,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:03,372 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 19:29:03,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:03,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295501419] [2022-01-10 19:29:03,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295501419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:03,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:03,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:03,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124147412] [2022-01-10 19:29:03,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:03,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:03,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:03,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:03,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:03,374 INFO L87 Difference]: Start difference. First operand 5892 states and 9458 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:03,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:03,499 INFO L93 Difference]: Finished difference Result 9635 states and 14915 transitions. [2022-01-10 19:29:03,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:03,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:03,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:03,510 INFO L225 Difference]: With dead ends: 9635 [2022-01-10 19:29:03,511 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:03,517 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 19:29:03,517 INFO L933 BasicCegarLoop]: 6907 mSDtfsCounter, 6884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6884 SdHoareTripleChecker+Valid, 6907 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 19:29:03,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6884 Valid, 6907 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:03,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6046867040244523) internal successors, (9450), 5891 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states 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 19:29:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9450 transitions. [2022-01-10 19:29:03,660 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9450 transitions. Word has length 176 [2022-01-10 19:29:03,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:03,660 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9450 transitions. [2022-01-10 19:29:03,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:03,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9450 transitions. [2022-01-10 19:29:03,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:03,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:03,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:03,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 19:29:03,662 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 19:29:03,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:03,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1424737972, now seen corresponding path program 1 times [2022-01-10 19:29:03,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:03,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911300972] [2022-01-10 19:29:03,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:03,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:03,702 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 19:29:03,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:03,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911300972] [2022-01-10 19:29:03,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911300972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:03,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:03,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:03,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696660534] [2022-01-10 19:29:03,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:03,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:03,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:03,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:03,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:03,723 INFO L87 Difference]: Start difference. First operand 5892 states and 9450 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:03,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:03,848 INFO L93 Difference]: Finished difference Result 9634 states and 14898 transitions. [2022-01-10 19:29:03,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:03,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:03,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:03,860 INFO L225 Difference]: With dead ends: 9634 [2022-01-10 19:29:03,860 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:03,866 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 19:29:03,867 INFO L933 BasicCegarLoop]: 6902 mSDtfsCounter, 6878 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6878 SdHoareTripleChecker+Valid, 6902 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 19:29:03,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6878 Valid, 6902 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:04,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6033282390898285) internal successors, (9442), 5891 states have internal predecessors, (9442), 0 states have call successors, (0), 0 states 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 19:29:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9442 transitions. [2022-01-10 19:29:04,018 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9442 transitions. Word has length 176 [2022-01-10 19:29:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:04,019 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9442 transitions. [2022-01-10 19:29:04,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9442 transitions. [2022-01-10 19:29:04,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:04,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:04,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:04,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 19:29:04,021 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 19:29:04,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash -879174508, now seen corresponding path program 1 times [2022-01-10 19:29:04,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:04,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576407024] [2022-01-10 19:29:04,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:04,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:04,058 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 19:29:04,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:04,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576407024] [2022-01-10 19:29:04,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576407024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:04,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:04,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:04,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309074675] [2022-01-10 19:29:04,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:04,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:04,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:04,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:04,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:04,060 INFO L87 Difference]: Start difference. First operand 5892 states and 9442 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:04,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:04,195 INFO L93 Difference]: Finished difference Result 9633 states and 14881 transitions. [2022-01-10 19:29:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:04,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:04,205 INFO L225 Difference]: With dead ends: 9633 [2022-01-10 19:29:04,205 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:04,212 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 19:29:04,212 INFO L933 BasicCegarLoop]: 6897 mSDtfsCounter, 6872 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 6897 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 19:29:04,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6872 Valid, 6897 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:04,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6019697741552046) internal successors, (9434), 5891 states have internal predecessors, (9434), 0 states have call successors, (0), 0 states 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 19:29:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9434 transitions. [2022-01-10 19:29:04,399 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9434 transitions. Word has length 176 [2022-01-10 19:29:04,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:04,399 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9434 transitions. [2022-01-10 19:29:04,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:04,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9434 transitions. [2022-01-10 19:29:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:04,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:04,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:04,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 19:29:04,402 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 19:29:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash 570526388, now seen corresponding path program 1 times [2022-01-10 19:29:04,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:04,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324814162] [2022-01-10 19:29:04,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:04,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:04,451 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 19:29:04,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:04,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324814162] [2022-01-10 19:29:04,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324814162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:04,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:04,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:04,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593375083] [2022-01-10 19:29:04,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:04,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:04,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:04,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:04,453 INFO L87 Difference]: Start difference. First operand 5892 states and 9434 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:04,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:04,610 INFO L93 Difference]: Finished difference Result 9632 states and 14864 transitions. [2022-01-10 19:29:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:04,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:04,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:04,623 INFO L225 Difference]: With dead ends: 9632 [2022-01-10 19:29:04,623 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:04,630 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 19:29:04,631 INFO L933 BasicCegarLoop]: 6892 mSDtfsCounter, 6866 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6866 SdHoareTripleChecker+Valid, 6892 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 19:29:04,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6866 Valid, 6892 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:04,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:04,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6006113092205807) internal successors, (9426), 5891 states have internal predecessors, (9426), 0 states have call successors, (0), 0 states 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 19:29:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9426 transitions. [2022-01-10 19:29:04,786 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9426 transitions. Word has length 176 [2022-01-10 19:29:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:04,786 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9426 transitions. [2022-01-10 19:29:04,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9426 transitions. [2022-01-10 19:29:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:04,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:04,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:04,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 19:29:04,789 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 19:29:04,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:04,789 INFO L85 PathProgramCache]: Analyzing trace with hash -491087724, now seen corresponding path program 1 times [2022-01-10 19:29:04,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:04,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622502948] [2022-01-10 19:29:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:04,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:04,833 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 19:29:04,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:04,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622502948] [2022-01-10 19:29:04,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622502948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:04,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:04,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:04,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170819463] [2022-01-10 19:29:04,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:04,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:04,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:04,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:04,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:04,835 INFO L87 Difference]: Start difference. First operand 5892 states and 9426 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:04,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:04,969 INFO L93 Difference]: Finished difference Result 9631 states and 14847 transitions. [2022-01-10 19:29:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:04,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:04,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:04,980 INFO L225 Difference]: With dead ends: 9631 [2022-01-10 19:29:04,980 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:04,988 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 19:29:04,989 INFO L933 BasicCegarLoop]: 6887 mSDtfsCounter, 6860 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 6887 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 19:29:04,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6860 Valid, 6887 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:05,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:05,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5992528442859568) internal successors, (9418), 5891 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states 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 19:29:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9418 transitions. [2022-01-10 19:29:05,142 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9418 transitions. Word has length 176 [2022-01-10 19:29:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:05,143 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9418 transitions. [2022-01-10 19:29:05,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9418 transitions. [2022-01-10 19:29:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:05,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:05,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:05,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 19:29:05,145 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 19:29:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash 28855988, now seen corresponding path program 1 times [2022-01-10 19:29:05,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:05,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869639252] [2022-01-10 19:29:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:05,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:05,192 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 19:29:05,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:05,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869639252] [2022-01-10 19:29:05,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869639252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:05,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:05,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:05,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400596556] [2022-01-10 19:29:05,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:05,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:05,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:05,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:05,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:05,194 INFO L87 Difference]: Start difference. First operand 5892 states and 9418 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:05,363 INFO L93 Difference]: Finished difference Result 9630 states and 14830 transitions. [2022-01-10 19:29:05,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:05,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:05,375 INFO L225 Difference]: With dead ends: 9630 [2022-01-10 19:29:05,375 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:05,383 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 19:29:05,383 INFO L933 BasicCegarLoop]: 6882 mSDtfsCounter, 6854 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6854 SdHoareTripleChecker+Valid, 6882 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 19:29:05,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6854 Valid, 6882 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:05,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:05,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:05,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.597894379351333) internal successors, (9410), 5891 states have internal predecessors, (9410), 0 states have call successors, (0), 0 states 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 19:29:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9410 transitions. [2022-01-10 19:29:05,585 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9410 transitions. Word has length 176 [2022-01-10 19:29:05,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:05,586 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9410 transitions. [2022-01-10 19:29:05,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9410 transitions. [2022-01-10 19:29:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:05,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:05,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:05,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 19:29:05,588 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 19:29:05,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:05,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1894034284, now seen corresponding path program 1 times [2022-01-10 19:29:05,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:05,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805798580] [2022-01-10 19:29:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:05,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:05,636 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 19:29:05,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:05,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805798580] [2022-01-10 19:29:05,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805798580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:05,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:05,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:05,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198839587] [2022-01-10 19:29:05,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:05,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:05,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:05,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:05,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:05,638 INFO L87 Difference]: Start difference. First operand 5892 states and 9410 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:05,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:05,851 INFO L93 Difference]: Finished difference Result 9629 states and 14813 transitions. [2022-01-10 19:29:05,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:05,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:05,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:05,862 INFO L225 Difference]: With dead ends: 9629 [2022-01-10 19:29:05,863 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:05,870 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 19:29:05,870 INFO L933 BasicCegarLoop]: 6845 mSDtfsCounter, 6690 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6690 SdHoareTripleChecker+Valid, 6983 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:05,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6690 Valid, 6983 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:05,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5914416709118695) internal successors, (9372), 5891 states have internal predecessors, (9372), 0 states have call successors, (0), 0 states 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 19:29:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9372 transitions. [2022-01-10 19:29:06,067 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9372 transitions. Word has length 176 [2022-01-10 19:29:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:06,067 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9372 transitions. [2022-01-10 19:29:06,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9372 transitions. [2022-01-10 19:29:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:06,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:06,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:06,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 19:29:06,070 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 19:29:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:06,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2118058445, now seen corresponding path program 1 times [2022-01-10 19:29:06,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:06,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437957724] [2022-01-10 19:29:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:06,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:06,116 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 19:29:06,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:06,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437957724] [2022-01-10 19:29:06,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437957724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:06,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:06,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:06,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876853927] [2022-01-10 19:29:06,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:06,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:06,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:06,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:06,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:06,117 INFO L87 Difference]: Start difference. First operand 5892 states and 9372 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:06,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:06,326 INFO L93 Difference]: Finished difference Result 9628 states and 14736 transitions. [2022-01-10 19:29:06,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:06,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:06,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:06,341 INFO L225 Difference]: With dead ends: 9628 [2022-01-10 19:29:06,341 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:06,347 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 19:29:06,348 INFO L933 BasicCegarLoop]: 6824 mSDtfsCounter, 6669 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 6961 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:06,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6669 Valid, 6961 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:06,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5849889624724063) internal successors, (9334), 5891 states have internal predecessors, (9334), 0 states have call successors, (0), 0 states 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 19:29:06,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9334 transitions. [2022-01-10 19:29:06,508 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9334 transitions. Word has length 176 [2022-01-10 19:29:06,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:06,508 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9334 transitions. [2022-01-10 19:29:06,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9334 transitions. [2022-01-10 19:29:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:06,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:06,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:06,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 19:29:06,510 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 19:29:06,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:06,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1151913262, now seen corresponding path program 1 times [2022-01-10 19:29:06,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:06,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016409814] [2022-01-10 19:29:06,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:06,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:06,546 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 19:29:06,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:06,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016409814] [2022-01-10 19:29:06,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016409814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:06,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:06,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:06,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483683962] [2022-01-10 19:29:06,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:06,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:06,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:06,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:06,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:06,548 INFO L87 Difference]: Start difference. First operand 5892 states and 9334 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:06,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:06,755 INFO L93 Difference]: Finished difference Result 9627 states and 14659 transitions. [2022-01-10 19:29:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:06,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:06,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:06,765 INFO L225 Difference]: With dead ends: 9627 [2022-01-10 19:29:06,766 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:06,771 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 19:29:06,772 INFO L933 BasicCegarLoop]: 6803 mSDtfsCounter, 6648 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6648 SdHoareTripleChecker+Valid, 6939 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:06,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6648 Valid, 6939 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:06,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5785362540329428) internal successors, (9296), 5891 states have internal predecessors, (9296), 0 states have call successors, (0), 0 states 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 19:29:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9296 transitions. [2022-01-10 19:29:06,923 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9296 transitions. Word has length 176 [2022-01-10 19:29:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:06,923 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9296 transitions. [2022-01-10 19:29:06,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9296 transitions. [2022-01-10 19:29:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:06,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:06,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:06,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 19:29:06,925 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 19:29:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:06,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1313608975, now seen corresponding path program 1 times [2022-01-10 19:29:06,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:06,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406676056] [2022-01-10 19:29:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:06,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:06,962 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 19:29:06,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:06,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406676056] [2022-01-10 19:29:06,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406676056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:06,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:06,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:06,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196216193] [2022-01-10 19:29:06,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:06,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:06,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:06,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:06,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:06,963 INFO L87 Difference]: Start difference. First operand 5892 states and 9296 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:07,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:07,120 INFO L93 Difference]: Finished difference Result 9626 states and 14582 transitions. [2022-01-10 19:29:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:07,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:07,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:07,130 INFO L225 Difference]: With dead ends: 9626 [2022-01-10 19:29:07,131 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:07,135 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 19:29:07,135 INFO L933 BasicCegarLoop]: 6782 mSDtfsCounter, 6627 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6627 SdHoareTripleChecker+Valid, 6917 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:07,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6627 Valid, 6917 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:07,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5720835455934794) internal successors, (9258), 5891 states have internal predecessors, (9258), 0 states have call successors, (0), 0 states 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 19:29:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9258 transitions. [2022-01-10 19:29:07,281 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9258 transitions. Word has length 176 [2022-01-10 19:29:07,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:07,281 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9258 transitions. [2022-01-10 19:29:07,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:07,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9258 transitions. [2022-01-10 19:29:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:07,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:07,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:07,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 19:29:07,283 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 19:29:07,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:07,283 INFO L85 PathProgramCache]: Analyzing trace with hash -374014448, now seen corresponding path program 1 times [2022-01-10 19:29:07,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:07,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209294835] [2022-01-10 19:29:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:07,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:07,316 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 19:29:07,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:07,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209294835] [2022-01-10 19:29:07,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209294835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:07,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:07,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:07,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426493717] [2022-01-10 19:29:07,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:07,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:07,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:07,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:07,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:07,317 INFO L87 Difference]: Start difference. First operand 5892 states and 9258 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:07,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:07,478 INFO L93 Difference]: Finished difference Result 9625 states and 14505 transitions. [2022-01-10 19:29:07,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:07,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:07,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:07,488 INFO L225 Difference]: With dead ends: 9625 [2022-01-10 19:29:07,488 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:07,493 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 19:29:07,493 INFO L933 BasicCegarLoop]: 6761 mSDtfsCounter, 6606 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6606 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:07,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6606 Valid, 6895 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:07,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:07,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:07,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.565630837154016) internal successors, (9220), 5891 states have internal predecessors, (9220), 0 states have call successors, (0), 0 states 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 19:29:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9220 transitions. [2022-01-10 19:29:07,649 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9220 transitions. Word has length 176 [2022-01-10 19:29:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:07,650 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9220 transitions. [2022-01-10 19:29:07,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:07,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9220 transitions. [2022-01-10 19:29:07,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:07,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:07,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:07,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 19:29:07,651 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 19:29:07,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:07,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2107603793, now seen corresponding path program 1 times [2022-01-10 19:29:07,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:07,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344686713] [2022-01-10 19:29:07,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:07,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:07,686 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 19:29:07,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:07,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344686713] [2022-01-10 19:29:07,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344686713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:07,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:07,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:07,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466326860] [2022-01-10 19:29:07,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:07,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:07,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:07,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:07,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:07,687 INFO L87 Difference]: Start difference. First operand 5892 states and 9220 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:07,860 INFO L93 Difference]: Finished difference Result 9624 states and 14428 transitions. [2022-01-10 19:29:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:07,868 INFO L225 Difference]: With dead ends: 9624 [2022-01-10 19:29:07,869 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:07,875 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 19:29:07,875 INFO L933 BasicCegarLoop]: 6740 mSDtfsCounter, 6585 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6585 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:07,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6585 Valid, 6873 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:08,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5591781287145525) internal successors, (9182), 5891 states have internal predecessors, (9182), 0 states have call successors, (0), 0 states 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 19:29:08,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9182 transitions. [2022-01-10 19:29:08,045 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9182 transitions. Word has length 176 [2022-01-10 19:29:08,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:08,046 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9182 transitions. [2022-01-10 19:29:08,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9182 transitions. [2022-01-10 19:29:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:08,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:08,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:08,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 19:29:08,047 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 19:29:08,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:08,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1898985038, now seen corresponding path program 1 times [2022-01-10 19:29:08,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:08,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790629446] [2022-01-10 19:29:08,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:08,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:08,086 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 19:29:08,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:08,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790629446] [2022-01-10 19:29:08,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790629446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:08,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:08,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:08,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525282254] [2022-01-10 19:29:08,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:08,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:08,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:08,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:08,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:08,088 INFO L87 Difference]: Start difference. First operand 5892 states and 9182 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:08,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:08,298 INFO L93 Difference]: Finished difference Result 9623 states and 14351 transitions. [2022-01-10 19:29:08,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:08,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:08,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:08,304 INFO L225 Difference]: With dead ends: 9623 [2022-01-10 19:29:08,305 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:08,309 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 19:29:08,310 INFO L933 BasicCegarLoop]: 6719 mSDtfsCounter, 6564 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6564 SdHoareTripleChecker+Valid, 6851 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:08,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6564 Valid, 6851 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:08,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.552725420275089) internal successors, (9144), 5891 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states 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 19:29:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9144 transitions. [2022-01-10 19:29:08,470 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9144 transitions. Word has length 176 [2022-01-10 19:29:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:08,470 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9144 transitions. [2022-01-10 19:29:08,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9144 transitions. [2022-01-10 19:29:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:08,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:08,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:08,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 19:29:08,472 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 19:29:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:08,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2111982445, now seen corresponding path program 1 times [2022-01-10 19:29:08,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:08,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98989924] [2022-01-10 19:29:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:08,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:08,506 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 19:29:08,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:08,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98989924] [2022-01-10 19:29:08,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98989924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:08,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:08,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:08,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382402821] [2022-01-10 19:29:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:08,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:08,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:08,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:08,507 INFO L87 Difference]: Start difference. First operand 5892 states and 9144 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:08,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:08,688 INFO L93 Difference]: Finished difference Result 9622 states and 14274 transitions. [2022-01-10 19:29:08,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:08,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:08,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:08,696 INFO L225 Difference]: With dead ends: 9622 [2022-01-10 19:29:08,697 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:08,702 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 19:29:08,702 INFO L933 BasicCegarLoop]: 6698 mSDtfsCounter, 6543 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:08,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6543 Valid, 6829 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:08,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:08,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:08,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5462727118356256) internal successors, (9106), 5891 states have internal predecessors, (9106), 0 states have call successors, (0), 0 states 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 19:29:08,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9106 transitions. [2022-01-10 19:29:08,873 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9106 transitions. Word has length 176 [2022-01-10 19:29:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:08,874 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9106 transitions. [2022-01-10 19:29:08,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9106 transitions. [2022-01-10 19:29:08,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:08,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:08,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:08,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 19:29:08,880 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 19:29:08,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:08,881 INFO L85 PathProgramCache]: Analyzing trace with hash -167486580, now seen corresponding path program 1 times [2022-01-10 19:29:08,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:08,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429839044] [2022-01-10 19:29:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:08,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:29:08,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:08,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429839044] [2022-01-10 19:29:08,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429839044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:08,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:08,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:08,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103177657] [2022-01-10 19:29:08,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:08,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:08,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:08,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:08,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:08,927 INFO L87 Difference]: Start difference. First operand 5892 states and 9106 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:09,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:09,110 INFO L93 Difference]: Finished difference Result 9621 states and 14197 transitions. [2022-01-10 19:29:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:09,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:09,118 INFO L225 Difference]: With dead ends: 9621 [2022-01-10 19:29:09,118 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:09,122 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 19:29:09,126 INFO L933 BasicCegarLoop]: 6677 mSDtfsCounter, 6522 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6522 SdHoareTripleChecker+Valid, 6807 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:09,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6522 Valid, 6807 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:09,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:09,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5398200033961624) internal successors, (9068), 5891 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states 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 19:29:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9068 transitions. [2022-01-10 19:29:09,307 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9068 transitions. Word has length 176 [2022-01-10 19:29:09,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:09,307 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9068 transitions. [2022-01-10 19:29:09,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:09,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9068 transitions. [2022-01-10 19:29:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:09,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:09,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:09,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 19:29:09,308 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 19:29:09,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:09,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1953186005, now seen corresponding path program 1 times [2022-01-10 19:29:09,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:09,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810522991] [2022-01-10 19:29:09,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:09,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:09,352 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 19:29:09,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:09,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810522991] [2022-01-10 19:29:09,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810522991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:09,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:09,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:09,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870447441] [2022-01-10 19:29:09,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:09,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:09,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:09,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:09,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:09,356 INFO L87 Difference]: Start difference. First operand 5892 states and 9068 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:09,540 INFO L93 Difference]: Finished difference Result 9620 states and 14120 transitions. [2022-01-10 19:29:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:09,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:09,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:09,547 INFO L225 Difference]: With dead ends: 9620 [2022-01-10 19:29:09,547 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:09,552 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 19:29:09,553 INFO L933 BasicCegarLoop]: 6656 mSDtfsCounter, 6501 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6501 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:09,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6501 Valid, 6785 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:09,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:09,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.533367294956699) internal successors, (9030), 5891 states have internal predecessors, (9030), 0 states have call successors, (0), 0 states 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 19:29:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9030 transitions. [2022-01-10 19:29:09,778 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9030 transitions. Word has length 176 [2022-01-10 19:29:09,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:09,778 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9030 transitions. [2022-01-10 19:29:09,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:09,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9030 transitions. [2022-01-10 19:29:09,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:09,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:09,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:09,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 19:29:09,780 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 19:29:09,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1236069834, now seen corresponding path program 1 times [2022-01-10 19:29:09,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:09,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694256129] [2022-01-10 19:29:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:09,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:09,822 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 19:29:09,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:09,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694256129] [2022-01-10 19:29:09,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694256129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:09,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:09,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:09,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95601743] [2022-01-10 19:29:09,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:09,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:09,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:09,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:09,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:09,823 INFO L87 Difference]: Start difference. First operand 5892 states and 9030 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:10,013 INFO L93 Difference]: Finished difference Result 9618 states and 14041 transitions. [2022-01-10 19:29:10,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:10,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:10,020 INFO L225 Difference]: With dead ends: 9618 [2022-01-10 19:29:10,020 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:10,026 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 19:29:10,027 INFO L933 BasicCegarLoop]: 6635 mSDtfsCounter, 6479 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6479 SdHoareTripleChecker+Valid, 6763 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:10,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6479 Valid, 6763 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:10,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5269145865172356) internal successors, (8992), 5891 states have internal predecessors, (8992), 0 states have call successors, (0), 0 states 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 19:29:10,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8992 transitions. [2022-01-10 19:29:10,211 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8992 transitions. Word has length 176 [2022-01-10 19:29:10,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:10,211 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8992 transitions. [2022-01-10 19:29:10,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8992 transitions. [2022-01-10 19:29:10,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:10,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:10,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:10,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 19:29:10,213 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 19:29:10,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:10,213 INFO L85 PathProgramCache]: Analyzing trace with hash -33438806, now seen corresponding path program 1 times [2022-01-10 19:29:10,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:10,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988902745] [2022-01-10 19:29:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:10,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:10,249 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 19:29:10,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:10,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988902745] [2022-01-10 19:29:10,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988902745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:10,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:10,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:10,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334326403] [2022-01-10 19:29:10,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:10,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:10,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:10,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:10,251 INFO L87 Difference]: Start difference. First operand 5892 states and 8992 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:10,444 INFO L93 Difference]: Finished difference Result 9617 states and 13964 transitions. [2022-01-10 19:29:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:10,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:10,451 INFO L225 Difference]: With dead ends: 9617 [2022-01-10 19:29:10,451 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:10,455 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 19:29:10,455 INFO L933 BasicCegarLoop]: 6614 mSDtfsCounter, 6458 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6458 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:10,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6458 Valid, 6741 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:10,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.520461878077772) internal successors, (8954), 5891 states have internal predecessors, (8954), 0 states have call successors, (0), 0 states 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 19:29:10,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8954 transitions. [2022-01-10 19:29:10,655 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8954 transitions. Word has length 176 [2022-01-10 19:29:10,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:10,655 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8954 transitions. [2022-01-10 19:29:10,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8954 transitions. [2022-01-10 19:29:10,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:10,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:10,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:10,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 19:29:10,657 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 19:29:10,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:10,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1079379017, now seen corresponding path program 1 times [2022-01-10 19:29:10,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:10,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745967946] [2022-01-10 19:29:10,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:10,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:10,691 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 19:29:10,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:10,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745967946] [2022-01-10 19:29:10,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745967946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:10,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:10,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:10,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394377961] [2022-01-10 19:29:10,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:10,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:10,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:10,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:10,692 INFO L87 Difference]: Start difference. First operand 5892 states and 8954 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:10,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:10,918 INFO L93 Difference]: Finished difference Result 9616 states and 13887 transitions. [2022-01-10 19:29:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:10,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:10,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:10,926 INFO L225 Difference]: With dead ends: 9616 [2022-01-10 19:29:10,927 INFO L226 Difference]: Without dead ends: 5892 [2022-01-10 19:29:10,938 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 19:29:10,939 INFO L933 BasicCegarLoop]: 6593 mSDtfsCounter, 6437 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6437 SdHoareTripleChecker+Valid, 6719 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:10,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6437 Valid, 6719 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:10,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-10 19:29:11,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-10 19:29:11,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5140091696383087) internal successors, (8916), 5891 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states 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 19:29:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8916 transitions. [2022-01-10 19:29:11,135 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8916 transitions. Word has length 176 [2022-01-10 19:29:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:11,135 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8916 transitions. [2022-01-10 19:29:11,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8916 transitions. [2022-01-10 19:29:11,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:11,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:11,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:11,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 19:29:11,137 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 19:29:11,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:11,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2026221544, now seen corresponding path program 1 times [2022-01-10 19:29:11,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:11,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708795169] [2022-01-10 19:29:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:11,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:11,211 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 19:29:11,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:11,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708795169] [2022-01-10 19:29:11,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708795169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:11,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:11,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:29:11,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473420617] [2022-01-10 19:29:11,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:11,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:29:11,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:11,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:29:11,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:29:11,212 INFO L87 Difference]: Start difference. First operand 5892 states and 8916 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:11,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:11,638 INFO L93 Difference]: Finished difference Result 10830 states and 15488 transitions. [2022-01-10 19:29:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:29:11,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:11,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:11,648 INFO L225 Difference]: With dead ends: 10830 [2022-01-10 19:29:11,648 INFO L226 Difference]: Without dead ends: 7120 [2022-01-10 19:29:11,652 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 19:29:11,652 INFO L933 BasicCegarLoop]: 6774 mSDtfsCounter, 7477 mSDsluCounter, 14429 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7477 SdHoareTripleChecker+Valid, 21203 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:11,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7477 Valid, 21203 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:29:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-01-10 19:29:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 5898. [2022-01-10 19:29:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5898 states, 5895 states have (on average 1.5083969465648854) internal successors, (8892), 5897 states have internal predecessors, (8892), 0 states have call successors, (0), 0 states 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 19:29:11,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8892 transitions. [2022-01-10 19:29:11,888 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8892 transitions. Word has length 176 [2022-01-10 19:29:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:11,888 INFO L470 AbstractCegarLoop]: Abstraction has 5898 states and 8892 transitions. [2022-01-10 19:29:11,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8892 transitions. [2022-01-10 19:29:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:11,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:11,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:11,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 19:29:11,890 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 19:29:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:11,890 INFO L85 PathProgramCache]: Analyzing trace with hash -982263447, now seen corresponding path program 1 times [2022-01-10 19:29:11,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:11,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843778239] [2022-01-10 19:29:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:11,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:11,935 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 19:29:11,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:11,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843778239] [2022-01-10 19:29:11,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843778239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:11,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:11,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:29:11,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71624099] [2022-01-10 19:29:11,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:11,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:29:11,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:11,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:29:11,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:29:11,937 INFO L87 Difference]: Start difference. First operand 5898 states and 8892 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:12,394 INFO L93 Difference]: Finished difference Result 11719 states and 16550 transitions. [2022-01-10 19:29:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:29:12,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:12,405 INFO L225 Difference]: With dead ends: 11719 [2022-01-10 19:29:12,405 INFO L226 Difference]: Without dead ends: 8038 [2022-01-10 19:29:12,409 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 19:29:12,410 INFO L933 BasicCegarLoop]: 6666 mSDtfsCounter, 6587 mSDsluCounter, 16373 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6587 SdHoareTripleChecker+Valid, 23039 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:12,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6587 Valid, 23039 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:29:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2022-01-10 19:29:12,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 5904. [2022-01-10 19:29:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5904 states, 5901 states have (on average 1.5027961362480935) internal successors, (8868), 5903 states have internal predecessors, (8868), 0 states have call successors, (0), 0 states 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 19:29:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5904 states to 5904 states and 8868 transitions. [2022-01-10 19:29:12,670 INFO L78 Accepts]: Start accepts. Automaton has 5904 states and 8868 transitions. Word has length 176 [2022-01-10 19:29:12,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:12,670 INFO L470 AbstractCegarLoop]: Abstraction has 5904 states and 8868 transitions. [2022-01-10 19:29:12,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:12,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5904 states and 8868 transitions. [2022-01-10 19:29:12,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:12,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:12,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:12,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 19:29:12,672 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 19:29:12,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:12,672 INFO L85 PathProgramCache]: Analyzing trace with hash 872082090, now seen corresponding path program 1 times [2022-01-10 19:29:12,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:12,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988773749] [2022-01-10 19:29:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:12,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:12,712 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 19:29:12,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:12,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988773749] [2022-01-10 19:29:12,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988773749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:12,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:12,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:12,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63036614] [2022-01-10 19:29:12,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:12,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:12,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:12,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:12,714 INFO L87 Difference]: Start difference. First operand 5904 states and 8868 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:13,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:13,182 INFO L93 Difference]: Finished difference Result 12942 states and 17995 transitions. [2022-01-10 19:29:13,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:13,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:13,196 INFO L225 Difference]: With dead ends: 12942 [2022-01-10 19:29:13,196 INFO L226 Difference]: Without dead ends: 9278 [2022-01-10 19:29:13,202 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 19:29:13,203 INFO L933 BasicCegarLoop]: 6562 mSDtfsCounter, 6292 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6292 SdHoareTripleChecker+Valid, 8931 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:13,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6292 Valid, 8931 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2022-01-10 19:29:13,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 9270. [2022-01-10 19:29:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9270 states, 9267 states have (on average 1.424409193913888) internal successors, (13200), 9269 states have internal predecessors, (13200), 0 states have call successors, (0), 0 states 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 19:29:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9270 states to 9270 states and 13200 transitions. [2022-01-10 19:29:13,654 INFO L78 Accepts]: Start accepts. Automaton has 9270 states and 13200 transitions. Word has length 176 [2022-01-10 19:29:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:13,654 INFO L470 AbstractCegarLoop]: Abstraction has 9270 states and 13200 transitions. [2022-01-10 19:29:13,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 9270 states and 13200 transitions. [2022-01-10 19:29:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:13,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:13,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:13,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 19:29:13,656 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 19:29:13,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:13,657 INFO L85 PathProgramCache]: Analyzing trace with hash -467962199, now seen corresponding path program 1 times [2022-01-10 19:29:13,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:13,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849113337] [2022-01-10 19:29:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:13,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:13,719 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 19:29:13,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:13,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849113337] [2022-01-10 19:29:13,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849113337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:13,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:13,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:13,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495175649] [2022-01-10 19:29:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:13,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:13,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:13,721 INFO L87 Difference]: Start difference. First operand 9270 states and 13200 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:14,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:14,248 INFO L93 Difference]: Finished difference Result 16375 states and 22383 transitions. [2022-01-10 19:29:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:14,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:14,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:14,263 INFO L225 Difference]: With dead ends: 16375 [2022-01-10 19:29:14,263 INFO L226 Difference]: Without dead ends: 9270 [2022-01-10 19:29:14,270 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 19:29:14,271 INFO L933 BasicCegarLoop]: 6539 mSDtfsCounter, 6275 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6275 SdHoareTripleChecker+Valid, 6662 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:14,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6275 Valid, 6662 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9270 states. [2022-01-10 19:29:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9270 to 9270. [2022-01-10 19:29:14,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9270 states, 9267 states have (on average 1.4197690730549262) internal successors, (13157), 9269 states have internal predecessors, (13157), 0 states have call successors, (0), 0 states 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 19:29:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9270 states to 9270 states and 13157 transitions. [2022-01-10 19:29:14,827 INFO L78 Accepts]: Start accepts. Automaton has 9270 states and 13157 transitions. Word has length 176 [2022-01-10 19:29:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:14,828 INFO L470 AbstractCegarLoop]: Abstraction has 9270 states and 13157 transitions. [2022-01-10 19:29:14,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9270 states and 13157 transitions. [2022-01-10 19:29:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 19:29:14,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:14,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:14,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 19:29:14,829 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 19:29:14,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:14,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1312434070, now seen corresponding path program 1 times [2022-01-10 19:29:14,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:14,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977959043] [2022-01-10 19:29:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:14,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:14,879 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 19:29:14,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:14,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977959043] [2022-01-10 19:29:14,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977959043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:14,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:14,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:29:14,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124946701] [2022-01-10 19:29:14,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:14,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:14,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:14,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:14,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:14,880 INFO L87 Difference]: Start difference. First operand 9270 states and 13157 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:15,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:15,692 INFO L93 Difference]: Finished difference Result 23256 states and 31167 transitions. [2022-01-10 19:29:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:15,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 19:29:15,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:15,715 INFO L225 Difference]: With dead ends: 23256 [2022-01-10 19:29:15,715 INFO L226 Difference]: Without dead ends: 16156 [2022-01-10 19:29:15,727 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 19:29:15,727 INFO L933 BasicCegarLoop]: 6539 mSDtfsCounter, 6337 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6337 SdHoareTripleChecker+Valid, 8890 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:15,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6337 Valid, 8890 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:15,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16156 states. [2022-01-10 19:29:16,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16156 to 15758. [2022-01-10 19:29:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15758 states, 15755 states have (on average 1.3622976832751508) internal successors, (21463), 15757 states have internal predecessors, (21463), 0 states have call successors, (0), 0 states 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 19:29:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15758 states to 15758 states and 21463 transitions. [2022-01-10 19:29:16,592 INFO L78 Accepts]: Start accepts. Automaton has 15758 states and 21463 transitions. Word has length 176 [2022-01-10 19:29:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:16,592 INFO L470 AbstractCegarLoop]: Abstraction has 15758 states and 21463 transitions. [2022-01-10 19:29:16,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 19:29:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 15758 states and 21463 transitions. [2022-01-10 19:29:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:29:16,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:16,625 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:16,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 19:29:16,626 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:29:16,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1613416453, now seen corresponding path program 1 times [2022-01-10 19:29:16,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:16,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118965968] [2022-01-10 19:29:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:16,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:16,686 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 19:29:16,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:16,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118965968] [2022-01-10 19:29:16,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118965968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:16,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:16,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:29:16,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159339937] [2022-01-10 19:29:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:16,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:16,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:16,688 INFO L87 Difference]: Start difference. First operand 15758 states and 21463 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:29:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:18,300 INFO L93 Difference]: Finished difference Result 42599 states and 55958 transitions. [2022-01-10 19:29:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:18,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-01-10 19:29:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:18,342 INFO L225 Difference]: With dead ends: 42599 [2022-01-10 19:29:18,342 INFO L226 Difference]: Without dead ends: 29017 [2022-01-10 19:29:18,360 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 19:29:18,360 INFO L933 BasicCegarLoop]: 6536 mSDtfsCounter, 6380 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6380 SdHoareTripleChecker+Valid, 8887 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:18,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6380 Valid, 8887 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29017 states. [2022-01-10 19:29:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29017 to 28281. [2022-01-10 19:29:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28281 states, 28278 states have (on average 1.3255887969446212) internal successors, (37485), 28280 states have internal predecessors, (37485), 0 states have call successors, (0), 0 states 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 19:29:20,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28281 states to 28281 states and 37485 transitions. [2022-01-10 19:29:20,087 INFO L78 Accepts]: Start accepts. Automaton has 28281 states and 37485 transitions. Word has length 286 [2022-01-10 19:29:20,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:20,088 INFO L470 AbstractCegarLoop]: Abstraction has 28281 states and 37485 transitions. [2022-01-10 19:29:20,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:29:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 28281 states and 37485 transitions. [2022-01-10 19:29:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:29:20,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:20,118 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:20,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 19:29:20,131 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:29:20,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:20,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1329010747, now seen corresponding path program 1 times [2022-01-10 19:29:20,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:20,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681960911] [2022-01-10 19:29:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:20,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:20,227 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 19:29:20,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:20,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681960911] [2022-01-10 19:29:20,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681960911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:20,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:20,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:29:20,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012474075] [2022-01-10 19:29:20,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:20,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:29:20,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:20,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:29:20,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:29:20,229 INFO L87 Difference]: Start difference. First operand 28281 states and 37485 transitions. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:29:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:23,531 INFO L93 Difference]: Finished difference Result 78855 states and 102729 transitions. [2022-01-10 19:29:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:29:23,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-01-10 19:29:23,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:23,614 INFO L225 Difference]: With dead ends: 78855 [2022-01-10 19:29:23,614 INFO L226 Difference]: Without dead ends: 52837 [2022-01-10 19:29:23,640 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 19:29:23,641 INFO L933 BasicCegarLoop]: 6495 mSDtfsCounter, 5292 mSDsluCounter, 19089 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5292 SdHoareTripleChecker+Valid, 25584 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:23,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5292 Valid, 25584 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:29:23,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52837 states. [2022-01-10 19:29:25,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52837 to 28329. [2022-01-10 19:29:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28329 states, 28326 states have (on average 1.3176586881310457) internal successors, (37324), 28328 states have internal predecessors, (37324), 0 states have call successors, (0), 0 states 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 19:29:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28329 states to 28329 states and 37324 transitions. [2022-01-10 19:29:25,936 INFO L78 Accepts]: Start accepts. Automaton has 28329 states and 37324 transitions. Word has length 286 [2022-01-10 19:29:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:25,936 INFO L470 AbstractCegarLoop]: Abstraction has 28329 states and 37324 transitions. [2022-01-10 19:29:25,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:29:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 28329 states and 37324 transitions. [2022-01-10 19:29:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:29:25,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:25,953 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:25,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 19:29:25,954 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:29:25,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:25,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1137376637, now seen corresponding path program 1 times [2022-01-10 19:29:25,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:25,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437477128] [2022-01-10 19:29:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:25,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:26,152 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 19:29:26,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:26,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437477128] [2022-01-10 19:29:26,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437477128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:26,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:26,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:29:26,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980640747] [2022-01-10 19:29:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:26,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:26,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:26,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:26,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:26,154 INFO L87 Difference]: Start difference. First operand 28329 states and 37324 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:29:29,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:29,914 INFO L93 Difference]: Finished difference Result 79127 states and 101584 transitions. [2022-01-10 19:29:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:29,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-01-10 19:29:29,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:29,999 INFO L225 Difference]: With dead ends: 79127 [2022-01-10 19:29:30,000 INFO L226 Difference]: Without dead ends: 53091 [2022-01-10 19:29:30,041 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 19:29:30,041 INFO L933 BasicCegarLoop]: 8214 mSDtfsCounter, 6071 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6071 SdHoareTripleChecker+Valid, 10775 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:29:30,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6071 Valid, 10775 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:30,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53091 states. [2022-01-10 19:29:33,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53091 to 53087. [2022-01-10 19:29:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53087 states, 53084 states have (on average 1.2877703262753373) internal successors, (68360), 53086 states have internal predecessors, (68360), 0 states have call successors, (0), 0 states 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 19:29:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53087 states to 53087 states and 68360 transitions. [2022-01-10 19:29:34,039 INFO L78 Accepts]: Start accepts. Automaton has 53087 states and 68360 transitions. Word has length 286 [2022-01-10 19:29:34,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:34,039 INFO L470 AbstractCegarLoop]: Abstraction has 53087 states and 68360 transitions. [2022-01-10 19:29:34,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:29:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 53087 states and 68360 transitions. [2022-01-10 19:29:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 19:29:34,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:34,059 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:34,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 19:29:34,060 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:29:34,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2008198236, now seen corresponding path program 1 times [2022-01-10 19:29:34,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:34,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802845926] [2022-01-10 19:29:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:34,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:34,120 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 19:29:34,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:34,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802845926] [2022-01-10 19:29:34,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802845926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:34,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:34,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:29:34,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181296934] [2022-01-10 19:29:34,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:34,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:34,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:34,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:34,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:34,122 INFO L87 Difference]: Start difference. First operand 53087 states and 68360 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states 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 19:29:37,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:29:37,887 INFO L93 Difference]: Finished difference Result 103715 states and 132354 transitions. [2022-01-10 19:29:37,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:29:37,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 286 [2022-01-10 19:29:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:29:37,971 INFO L225 Difference]: With dead ends: 103715 [2022-01-10 19:29:37,971 INFO L226 Difference]: Without dead ends: 52921 [2022-01-10 19:29:38,008 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 19:29:38,009 INFO L933 BasicCegarLoop]: 6537 mSDtfsCounter, 2575 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 10495 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 19:29:38,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2575 Valid, 10495 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:29:38,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52921 states. [2022-01-10 19:29:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52921 to 52921. [2022-01-10 19:29:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52921 states, 52918 states have (on average 1.288011640651574) internal successors, (68159), 52920 states have internal predecessors, (68159), 0 states have call successors, (0), 0 states 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 19:29:42,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52921 states to 52921 states and 68159 transitions. [2022-01-10 19:29:42,193 INFO L78 Accepts]: Start accepts. Automaton has 52921 states and 68159 transitions. Word has length 286 [2022-01-10 19:29:42,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:29:42,193 INFO L470 AbstractCegarLoop]: Abstraction has 52921 states and 68159 transitions. [2022-01-10 19:29:42,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states 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 19:29:42,193 INFO L276 IsEmpty]: Start isEmpty. Operand 52921 states and 68159 transitions. [2022-01-10 19:29:42,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-01-10 19:29:42,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:29:42,212 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:29:42,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 19:29:42,212 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:29:42,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:29:42,212 INFO L85 PathProgramCache]: Analyzing trace with hash -341005987, now seen corresponding path program 1 times [2022-01-10 19:29:42,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:29:42,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123071540] [2022-01-10 19:29:42,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:29:42,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:29:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:29:42,287 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 19:29:42,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:29:42,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123071540] [2022-01-10 19:29:42,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123071540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:29:42,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:29:42,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:29:42,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444072395] [2022-01-10 19:29:42,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:29:42,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:29:42,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:29:42,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:29:42,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:29:42,289 INFO L87 Difference]: Start difference. First operand 52921 states and 68159 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)