/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/product-lines/email_spec9_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:12:07,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:12:07,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:12:07,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:12:07,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:12:07,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:12:07,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:12:07,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:12:07,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:12:07,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:12:07,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:12:07,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:12:07,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:12:07,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:12:07,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:12:07,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:12:07,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:12:07,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:12:07,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:12:07,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:12:07,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:12:07,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:12:07,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:12:07,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:12:07,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:12:07,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:12:07,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:12:07,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:12:07,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:12:07,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:12:07,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:12:07,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:12:07,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:12:07,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:12:07,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:12:07,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:12:07,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:12:07,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:12:07,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:12:07,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:12:07,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:12:07,557 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 18:12:07,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:12:07,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:12:07,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:12:07,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:12:07,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:12:07,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:12:07,584 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:12:07,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:12:07,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:12:07,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:12:07,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:12:07,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:12:07,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:12:07,585 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:12:07,586 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:12:07,586 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:12:07,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:12:07,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:12:07,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:12:07,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:12:07,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:12:07,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:12:07,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:12:07,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:12:07,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:12:07,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:12:07,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:12:07,587 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:12:07,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:12:07,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:12:07,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:12:07,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:12:07,589 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:12:07,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:12:07,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:12:07,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:12:07,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:12:07,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:12:07,813 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:12:07,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c [2022-01-10 18:12:07,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fceb8fb47/3dc43bbfcb1a491494093d4eb9cb0aeb/FLAG55646e02f [2022-01-10 18:12:08,355 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:12:08,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c [2022-01-10 18:12:08,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fceb8fb47/3dc43bbfcb1a491494093d4eb9cb0aeb/FLAG55646e02f [2022-01-10 18:12:08,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fceb8fb47/3dc43bbfcb1a491494093d4eb9cb0aeb [2022-01-10 18:12:08,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:12:08,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:12:08,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:12:08,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:12:08,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:12:08,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:12:08" (1/1) ... [2022-01-10 18:12:08,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7510d128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:08, skipping insertion in model container [2022-01-10 18:12:08,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:12:08" (1/1) ... [2022-01-10 18:12:08,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:12:08,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:12:08,946 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c[65089,65102] [2022-01-10 18:12:08,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:12:08,963 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:12:08,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:12:09,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c[65089,65102] [2022-01-10 18:12:09,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:12:09,084 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:12:09,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c[65089,65102] [2022-01-10 18:12:09,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:12:09,197 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:12:09,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09 WrapperNode [2022-01-10 18:12:09,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:12:09,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:12:09,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:12:09,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:12:09,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,321 INFO L137 Inliner]: procedures = 134, calls = 232, calls flagged for inlining = 137, calls inlined = 308, statements flattened = 4843 [2022-01-10 18:12:09,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:12:09,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:12:09,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:12:09,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:12:09,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:12:09,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:12:09,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:12:09,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:12:09,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (1/1) ... [2022-01-10 18:12:09,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:12:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:12:09,496 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 18:12:09,499 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 18:12:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 18:12:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:12:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:12:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:12:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:12:09,739 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:12:09,741 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:12:11,500 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:12:11,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:12:11,510 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 18:12:11,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:12:11 BoogieIcfgContainer [2022-01-10 18:12:11,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:12:11,514 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:12:11,514 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:12:11,515 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:12:11,517 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:12:11" (1/1) ... [2022-01-10 18:12:12,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:12:12 BasicIcfg [2022-01-10 18:12:12,027 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:12:12,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:12:12,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:12:12,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:12:12,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:12:08" (1/4) ... [2022-01-10 18:12:12,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7daabf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:12:12, skipping insertion in model container [2022-01-10 18:12:12,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:12:09" (2/4) ... [2022-01-10 18:12:12,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7daabf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:12:12, skipping insertion in model container [2022-01-10 18:12:12,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:12:11" (3/4) ... [2022-01-10 18:12:12,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7daabf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:12:12, skipping insertion in model container [2022-01-10 18:12:12,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:12:12" (4/4) ... [2022-01-10 18:12:12,032 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product29.cil.cTransformedIcfg [2022-01-10 18:12:12,036 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:12:12,036 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 18:12:12,084 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:12:12,089 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 18:12:12,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 18:12:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 1093 states, 1086 states have (on average 1.6961325966850829) internal successors, (1842), 1092 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 18:12:12,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:12,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:12:12,122 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:12,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1193384065, now seen corresponding path program 1 times [2022-01-10 18:12:12,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:12,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163906190] [2022-01-10 18:12:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:12,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:12,450 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 18:12:12,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:12,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163906190] [2022-01-10 18:12:12,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163906190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:12,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:12,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:12:12,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710443563] [2022-01-10 18:12:12,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:12,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:12:12,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:12,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:12:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:12:12,497 INFO L87 Difference]: Start difference. First operand has 1093 states, 1086 states have (on average 1.6961325966850829) internal successors, (1842), 1092 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:12,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:12,580 INFO L93 Difference]: Finished difference Result 1882 states and 3145 transitions. [2022-01-10 18:12:12,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:12:12,582 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 18:12:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:12,602 INFO L225 Difference]: With dead ends: 1882 [2022-01-10 18:12:12,602 INFO L226 Difference]: Without dead ends: 929 [2022-01-10 18:12:12,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:12:12,613 INFO L933 BasicCegarLoop]: 1828 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:12,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2022-01-10 18:12:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2022-01-10 18:12:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 923 states have (on average 1.704225352112676) internal successors, (1573), 928 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1573 transitions. [2022-01-10 18:12:12,698 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1573 transitions. Word has length 55 [2022-01-10 18:12:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:12,698 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 1573 transitions. [2022-01-10 18:12:12,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1573 transitions. [2022-01-10 18:12:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 18:12:12,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:12,706 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] [2022-01-10 18:12:12,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:12:12,706 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:12,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash -415624481, now seen corresponding path program 1 times [2022-01-10 18:12:12,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:12,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357567381] [2022-01-10 18:12:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:12,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:12,895 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 18:12:12,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:12,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357567381] [2022-01-10 18:12:12,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357567381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:12,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:12,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:12:12,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090660625] [2022-01-10 18:12:12,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:12,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:12,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:12,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:12,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:12,898 INFO L87 Difference]: Start difference. First operand 929 states and 1573 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:12,988 INFO L93 Difference]: Finished difference Result 1459 states and 2443 transitions. [2022-01-10 18:12:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:12,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 18:12:12,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:12,993 INFO L225 Difference]: With dead ends: 1459 [2022-01-10 18:12:12,993 INFO L226 Difference]: Without dead ends: 931 [2022-01-10 18:12:12,994 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 18:12:12,995 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 696 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:12,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 2371 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:12,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-01-10 18:12:13,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 917. [2022-01-10 18:12:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.7031763417305585) internal successors, (1555), 916 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1555 transitions. [2022-01-10 18:12:13,024 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1555 transitions. Word has length 56 [2022-01-10 18:12:13,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:13,025 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1555 transitions. [2022-01-10 18:12:13,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1555 transitions. [2022-01-10 18:12:13,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 18:12:13,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:13,035 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] [2022-01-10 18:12:13,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:12:13,035 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:13,036 INFO L85 PathProgramCache]: Analyzing trace with hash 815803081, now seen corresponding path program 1 times [2022-01-10 18:12:13,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:13,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116226474] [2022-01-10 18:12:13,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:13,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:13,217 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 18:12:13,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:13,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116226474] [2022-01-10 18:12:13,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116226474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:13,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:13,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:13,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813677284] [2022-01-10 18:12:13,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:13,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:13,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:13,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:13,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:13,222 INFO L87 Difference]: Start difference. First operand 917 states and 1555 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:13,342 INFO L93 Difference]: Finished difference Result 1607 states and 2686 transitions. [2022-01-10 18:12:13,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:13,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-10 18:12:13,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:13,347 INFO L225 Difference]: With dead ends: 1607 [2022-01-10 18:12:13,347 INFO L226 Difference]: Without dead ends: 1133 [2022-01-10 18:12:13,351 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 18:12:13,354 INFO L933 BasicCegarLoop]: 1843 mSDtfsCounter, 773 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:13,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 2949 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2022-01-10 18:12:13,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 917. [2022-01-10 18:12:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.696604600219058) internal successors, (1549), 916 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1549 transitions. [2022-01-10 18:12:13,380 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1549 transitions. Word has length 104 [2022-01-10 18:12:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:13,381 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1549 transitions. [2022-01-10 18:12:13,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1549 transitions. [2022-01-10 18:12:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 18:12:13,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:13,384 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] [2022-01-10 18:12:13,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:12:13,385 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:13,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash -410281853, now seen corresponding path program 1 times [2022-01-10 18:12:13,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:13,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235442460] [2022-01-10 18:12:13,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:13,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:12:13,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:13,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235442460] [2022-01-10 18:12:13,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235442460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:13,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:13,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:13,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015265376] [2022-01-10 18:12:13,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:13,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:13,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:13,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:13,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:13,596 INFO L87 Difference]: Start difference. First operand 917 states and 1549 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:13,720 INFO L93 Difference]: Finished difference Result 1815 states and 3070 transitions. [2022-01-10 18:12:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:13,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-10 18:12:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:13,726 INFO L225 Difference]: With dead ends: 1815 [2022-01-10 18:12:13,726 INFO L226 Difference]: Without dead ends: 917 [2022-01-10 18:12:13,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:12:13,729 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 1524 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:13,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1524 Valid, 1542 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:13,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-01-10 18:12:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2022-01-10 18:12:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.6944140197152244) internal successors, (1547), 916 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1547 transitions. [2022-01-10 18:12:13,781 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1547 transitions. Word has length 105 [2022-01-10 18:12:13,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:13,781 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1547 transitions. [2022-01-10 18:12:13,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1547 transitions. [2022-01-10 18:12:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 18:12:13,791 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:13,792 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] [2022-01-10 18:12:13,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:12:13,792 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1842555267, now seen corresponding path program 1 times [2022-01-10 18:12:13,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:13,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290458755] [2022-01-10 18:12:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:13,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:13,952 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 18:12:13,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:13,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290458755] [2022-01-10 18:12:13,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290458755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:13,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:13,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:13,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539125445] [2022-01-10 18:12:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:13,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:13,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:13,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:13,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:13,956 INFO L87 Difference]: Start difference. First operand 917 states and 1547 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:14,259 INFO L93 Difference]: Finished difference Result 4453 states and 7531 transitions. [2022-01-10 18:12:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:12:14,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-01-10 18:12:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:14,272 INFO L225 Difference]: With dead ends: 4453 [2022-01-10 18:12:14,273 INFO L226 Difference]: Without dead ends: 3560 [2022-01-10 18:12:14,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:12:14,275 INFO L933 BasicCegarLoop]: 3017 mSDtfsCounter, 7518 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7518 SdHoareTripleChecker+Valid, 7530 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:14,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7518 Valid, 7530 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2022-01-10 18:12:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 917. [2022-01-10 18:12:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.6933187294633079) internal successors, (1546), 916 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:14,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1546 transitions. [2022-01-10 18:12:14,340 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1546 transitions. Word has length 107 [2022-01-10 18:12:14,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:14,341 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1546 transitions. [2022-01-10 18:12:14,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:14,341 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1546 transitions. [2022-01-10 18:12:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 18:12:14,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:14,342 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] [2022-01-10 18:12:14,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:12:14,343 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:14,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:14,343 INFO L85 PathProgramCache]: Analyzing trace with hash -832254841, now seen corresponding path program 1 times [2022-01-10 18:12:14,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:14,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908111666] [2022-01-10 18:12:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:14,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:14,509 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 18:12:14,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:14,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908111666] [2022-01-10 18:12:14,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908111666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:14,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:14,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:14,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400301028] [2022-01-10 18:12:14,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:14,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:14,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:14,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:14,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:14,510 INFO L87 Difference]: Start difference. First operand 917 states and 1546 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:14,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:14,580 INFO L93 Difference]: Finished difference Result 1819 states and 3070 transitions. [2022-01-10 18:12:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:14,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-10 18:12:14,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:14,584 INFO L225 Difference]: With dead ends: 1819 [2022-01-10 18:12:14,585 INFO L226 Difference]: Without dead ends: 931 [2022-01-10 18:12:14,588 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 18:12:14,589 INFO L933 BasicCegarLoop]: 1560 mSDtfsCounter, 1525 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:14,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 1582 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:14,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-01-10 18:12:14,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 917. [2022-01-10 18:12:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.692223439211391) internal successors, (1545), 916 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1545 transitions. [2022-01-10 18:12:14,641 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1545 transitions. Word has length 108 [2022-01-10 18:12:14,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:14,642 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1545 transitions. [2022-01-10 18:12:14,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:14,643 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1545 transitions. [2022-01-10 18:12:14,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 18:12:14,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:14,644 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] [2022-01-10 18:12:14,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:12:14,645 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:14,645 INFO L85 PathProgramCache]: Analyzing trace with hash 2035191716, now seen corresponding path program 1 times [2022-01-10 18:12:14,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:14,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540958785] [2022-01-10 18:12:14,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:14,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:14,775 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 18:12:14,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:14,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540958785] [2022-01-10 18:12:14,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540958785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:14,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:14,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:14,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475932156] [2022-01-10 18:12:14,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:14,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:14,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:14,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:14,778 INFO L87 Difference]: Start difference. First operand 917 states and 1545 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:15,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:15,007 INFO L93 Difference]: Finished difference Result 2685 states and 4535 transitions. [2022-01-10 18:12:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:12:15,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-10 18:12:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:15,015 INFO L225 Difference]: With dead ends: 2685 [2022-01-10 18:12:15,015 INFO L226 Difference]: Without dead ends: 1802 [2022-01-10 18:12:15,017 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 18:12:15,020 INFO L933 BasicCegarLoop]: 1554 mSDtfsCounter, 7441 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7441 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:15,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7441 Valid, 3122 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:15,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2022-01-10 18:12:15,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 917. [2022-01-10 18:12:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.6900328587075575) internal successors, (1543), 916 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:15,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1543 transitions. [2022-01-10 18:12:15,085 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1543 transitions. Word has length 109 [2022-01-10 18:12:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:15,086 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1543 transitions. [2022-01-10 18:12:15,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1543 transitions. [2022-01-10 18:12:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 18:12:15,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:15,088 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] [2022-01-10 18:12:15,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:12:15,088 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash 514350721, now seen corresponding path program 1 times [2022-01-10 18:12:15,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:15,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450199067] [2022-01-10 18:12:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:15,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:15,275 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 18:12:15,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:15,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450199067] [2022-01-10 18:12:15,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450199067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:15,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:15,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:12:15,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716501360] [2022-01-10 18:12:15,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:15,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:12:15,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:12:15,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:12:15,279 INFO L87 Difference]: Start difference. First operand 917 states and 1543 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:15,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:15,953 INFO L93 Difference]: Finished difference Result 6848 states and 11408 transitions. [2022-01-10 18:12:15,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:12:15,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-01-10 18:12:15,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:15,975 INFO L225 Difference]: With dead ends: 6848 [2022-01-10 18:12:15,975 INFO L226 Difference]: Without dead ends: 6248 [2022-01-10 18:12:15,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:12:15,980 INFO L933 BasicCegarLoop]: 2846 mSDtfsCounter, 12001 mSDsluCounter, 10198 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12001 SdHoareTripleChecker+Valid, 13044 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:15,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12001 Valid, 13044 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:12:15,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2022-01-10 18:12:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 1590. [2022-01-10 18:12:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1586 states have (on average 1.6929382093316518) internal successors, (2685), 1589 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:16,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2685 transitions. [2022-01-10 18:12:16,122 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2685 transitions. Word has length 111 [2022-01-10 18:12:16,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:16,123 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 2685 transitions. [2022-01-10 18:12:16,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2685 transitions. [2022-01-10 18:12:16,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 18:12:16,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:16,125 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] [2022-01-10 18:12:16,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:12:16,126 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:16,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:16,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1504621289, now seen corresponding path program 1 times [2022-01-10 18:12:16,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:16,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783625573] [2022-01-10 18:12:16,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:16,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:16,231 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 18:12:16,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:16,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783625573] [2022-01-10 18:12:16,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783625573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:16,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:16,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:16,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522976492] [2022-01-10 18:12:16,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:16,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:16,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:16,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:16,233 INFO L87 Difference]: Start difference. First operand 1590 states and 2685 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:16,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:16,502 INFO L93 Difference]: Finished difference Result 3315 states and 5511 transitions. [2022-01-10 18:12:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:12:16,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-01-10 18:12:16,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:16,511 INFO L225 Difference]: With dead ends: 3315 [2022-01-10 18:12:16,511 INFO L226 Difference]: Without dead ends: 2331 [2022-01-10 18:12:16,514 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 18:12:16,514 INFO L933 BasicCegarLoop]: 1525 mSDtfsCounter, 5075 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 3351 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:16,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5075 Valid, 3351 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:16,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2022-01-10 18:12:16,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 1590. [2022-01-10 18:12:16,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1586 states have (on average 1.6904161412358134) internal successors, (2681), 1589 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2681 transitions. [2022-01-10 18:12:16,618 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2681 transitions. Word has length 112 [2022-01-10 18:12:16,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:16,618 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 2681 transitions. [2022-01-10 18:12:16,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2681 transitions. [2022-01-10 18:12:16,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 18:12:16,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:16,621 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] [2022-01-10 18:12:16,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:12:16,621 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:16,622 INFO L85 PathProgramCache]: Analyzing trace with hash -434901055, now seen corresponding path program 1 times [2022-01-10 18:12:16,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:16,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395344699] [2022-01-10 18:12:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:16,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:16,703 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 18:12:16,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:16,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395344699] [2022-01-10 18:12:16,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395344699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:16,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:16,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:16,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691049770] [2022-01-10 18:12:16,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:16,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:16,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:16,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:16,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:16,705 INFO L87 Difference]: Start difference. First operand 1590 states and 2681 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:16,963 INFO L93 Difference]: Finished difference Result 4647 states and 7872 transitions. [2022-01-10 18:12:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:12:16,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-01-10 18:12:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:16,975 INFO L225 Difference]: With dead ends: 4647 [2022-01-10 18:12:16,975 INFO L226 Difference]: Without dead ends: 3094 [2022-01-10 18:12:16,977 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 18:12:16,978 INFO L933 BasicCegarLoop]: 2985 mSDtfsCounter, 4560 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 4479 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:16,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4560 Valid, 4479 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:16,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-01-10 18:12:17,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 1590. [2022-01-10 18:12:17,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1586 states have (on average 1.689155107187894) internal successors, (2679), 1589 states have internal predecessors, (2679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2679 transitions. [2022-01-10 18:12:17,102 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2679 transitions. Word has length 112 [2022-01-10 18:12:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:17,103 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 2679 transitions. [2022-01-10 18:12:17,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2679 transitions. [2022-01-10 18:12:17,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 18:12:17,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:17,106 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] [2022-01-10 18:12:17,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:12:17,106 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:17,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:17,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1162071024, now seen corresponding path program 1 times [2022-01-10 18:12:17,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:17,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009153561] [2022-01-10 18:12:17,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:17,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:17,267 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 18:12:17,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:17,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009153561] [2022-01-10 18:12:17,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009153561] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:17,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:17,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:17,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328455208] [2022-01-10 18:12:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:17,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:17,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:17,269 INFO L87 Difference]: Start difference. First operand 1590 states and 2679 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:17,627 INFO L93 Difference]: Finished difference Result 4482 states and 7481 transitions. [2022-01-10 18:12:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:17,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-10 18:12:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:17,647 INFO L225 Difference]: With dead ends: 4482 [2022-01-10 18:12:17,647 INFO L226 Difference]: Without dead ends: 3734 [2022-01-10 18:12:17,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:17,650 INFO L933 BasicCegarLoop]: 1610 mSDtfsCounter, 3059 mSDsluCounter, 4726 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:17,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3059 Valid, 6336 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:17,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2022-01-10 18:12:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 2908. [2022-01-10 18:12:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2904 states have (on average 1.6966253443526171) internal successors, (4927), 2907 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4927 transitions. [2022-01-10 18:12:17,832 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4927 transitions. Word has length 113 [2022-01-10 18:12:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:17,833 INFO L470 AbstractCegarLoop]: Abstraction has 2908 states and 4927 transitions. [2022-01-10 18:12:17,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:17,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4927 transitions. [2022-01-10 18:12:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 18:12:17,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:17,838 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] [2022-01-10 18:12:17,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:12:17,838 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:17,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:17,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1763525779, now seen corresponding path program 1 times [2022-01-10 18:12:17,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:17,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679173910] [2022-01-10 18:12:17,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:17,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:18,042 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 18:12:18,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:18,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679173910] [2022-01-10 18:12:18,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679173910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:18,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:18,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:12:18,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104423538] [2022-01-10 18:12:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:18,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:12:18,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:12:18,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:18,045 INFO L87 Difference]: Start difference. First operand 2908 states and 4927 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:19,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:19,925 INFO L93 Difference]: Finished difference Result 12942 states and 21267 transitions. [2022-01-10 18:12:19,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:12:19,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-10 18:12:19,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:19,949 INFO L225 Difference]: With dead ends: 12942 [2022-01-10 18:12:19,949 INFO L226 Difference]: Without dead ends: 11426 [2022-01-10 18:12:19,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:12:19,954 INFO L933 BasicCegarLoop]: 2248 mSDtfsCounter, 13019 mSDsluCounter, 11733 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13019 SdHoareTripleChecker+Valid, 13981 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:19,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13019 Valid, 13981 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 18:12:19,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11426 states. [2022-01-10 18:12:20,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11426 to 5725. [2022-01-10 18:12:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 5721 states have (on average 1.6986540814542912) internal successors, (9718), 5724 states have internal predecessors, (9718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 9718 transitions. [2022-01-10 18:12:20,390 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 9718 transitions. Word has length 113 [2022-01-10 18:12:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:20,390 INFO L470 AbstractCegarLoop]: Abstraction has 5725 states and 9718 transitions. [2022-01-10 18:12:20,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:20,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 9718 transitions. [2022-01-10 18:12:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 18:12:20,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:20,399 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] [2022-01-10 18:12:20,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:12:20,400 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:20,400 INFO L85 PathProgramCache]: Analyzing trace with hash -332045667, now seen corresponding path program 1 times [2022-01-10 18:12:20,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:20,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315091202] [2022-01-10 18:12:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:20,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:20,538 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 18:12:20,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:20,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315091202] [2022-01-10 18:12:20,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315091202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:20,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:20,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:20,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183355680] [2022-01-10 18:12:20,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:20,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:20,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:20,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:20,540 INFO L87 Difference]: Start difference. First operand 5725 states and 9718 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:21,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:21,624 INFO L93 Difference]: Finished difference Result 16177 states and 27046 transitions. [2022-01-10 18:12:21,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:21,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-10 18:12:21,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:21,655 INFO L225 Difference]: With dead ends: 16177 [2022-01-10 18:12:21,656 INFO L226 Difference]: Without dead ends: 13664 [2022-01-10 18:12:21,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:21,663 INFO L933 BasicCegarLoop]: 1792 mSDtfsCounter, 2543 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 6364 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:21,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2543 Valid, 6364 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:21,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13664 states. [2022-01-10 18:12:22,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13664 to 11007. [2022-01-10 18:12:22,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11007 states, 11003 states have (on average 1.7022630191765882) internal successors, (18730), 11006 states have internal predecessors, (18730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11007 states to 11007 states and 18730 transitions. [2022-01-10 18:12:22,404 INFO L78 Accepts]: Start accepts. Automaton has 11007 states and 18730 transitions. Word has length 114 [2022-01-10 18:12:22,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:22,404 INFO L470 AbstractCegarLoop]: Abstraction has 11007 states and 18730 transitions. [2022-01-10 18:12:22,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:22,405 INFO L276 IsEmpty]: Start isEmpty. Operand 11007 states and 18730 transitions. [2022-01-10 18:12:22,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 18:12:22,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:22,425 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] [2022-01-10 18:12:22,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:12:22,425 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:22,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:22,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1696705186, now seen corresponding path program 1 times [2022-01-10 18:12:22,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:22,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171883645] [2022-01-10 18:12:22,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:22,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:22,516 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 18:12:22,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:22,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171883645] [2022-01-10 18:12:22,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171883645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:22,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:22,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:22,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205312892] [2022-01-10 18:12:22,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:22,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:12:22,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:22,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:12:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:12:22,518 INFO L87 Difference]: Start difference. First operand 11007 states and 18730 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:23,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:23,555 INFO L93 Difference]: Finished difference Result 16649 states and 27929 transitions. [2022-01-10 18:12:23,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:12:23,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-10 18:12:23,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:23,586 INFO L225 Difference]: With dead ends: 16649 [2022-01-10 18:12:23,587 INFO L226 Difference]: Without dead ends: 13312 [2022-01-10 18:12:23,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:23,597 INFO L933 BasicCegarLoop]: 1533 mSDtfsCounter, 2766 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:23,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 3342 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:23,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13312 states. [2022-01-10 18:12:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13312 to 11007. [2022-01-10 18:12:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11007 states, 11003 states have (on average 1.701535944742343) internal successors, (18722), 11006 states have internal predecessors, (18722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:24,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11007 states to 11007 states and 18722 transitions. [2022-01-10 18:12:24,473 INFO L78 Accepts]: Start accepts. Automaton has 11007 states and 18722 transitions. Word has length 114 [2022-01-10 18:12:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:24,474 INFO L470 AbstractCegarLoop]: Abstraction has 11007 states and 18722 transitions. [2022-01-10 18:12:24,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:24,474 INFO L276 IsEmpty]: Start isEmpty. Operand 11007 states and 18722 transitions. [2022-01-10 18:12:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 18:12:24,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:24,488 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] [2022-01-10 18:12:24,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:12:24,488 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:24,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:24,489 INFO L85 PathProgramCache]: Analyzing trace with hash -829652961, now seen corresponding path program 1 times [2022-01-10 18:12:24,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:24,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466588524] [2022-01-10 18:12:24,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:24,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:12:24,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:24,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466588524] [2022-01-10 18:12:24,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466588524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:24,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:24,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:24,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835544447] [2022-01-10 18:12:24,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:24,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:24,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:24,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:24,631 INFO L87 Difference]: Start difference. First operand 11007 states and 18722 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:28,674 INFO L93 Difference]: Finished difference Result 44607 states and 72986 transitions. [2022-01-10 18:12:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:28,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-10 18:12:28,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:28,771 INFO L225 Difference]: With dead ends: 44607 [2022-01-10 18:12:28,771 INFO L226 Difference]: Without dead ends: 41796 [2022-01-10 18:12:28,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:28,794 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 8849 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8849 SdHoareTripleChecker+Valid, 6566 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:28,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8849 Valid, 6566 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:12:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41796 states. [2022-01-10 18:12:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41796 to 24918. [2022-01-10 18:12:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24918 states, 24914 states have (on average 1.6561772497391025) internal successors, (41262), 24917 states have internal predecessors, (41262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:31,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24918 states to 24918 states and 41262 transitions. [2022-01-10 18:12:31,163 INFO L78 Accepts]: Start accepts. Automaton has 24918 states and 41262 transitions. Word has length 114 [2022-01-10 18:12:31,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:31,164 INFO L470 AbstractCegarLoop]: Abstraction has 24918 states and 41262 transitions. [2022-01-10 18:12:31,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand 24918 states and 41262 transitions. [2022-01-10 18:12:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 18:12:31,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:31,193 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] [2022-01-10 18:12:31,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:12:31,193 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:31,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:31,193 INFO L85 PathProgramCache]: Analyzing trace with hash -684760956, now seen corresponding path program 1 times [2022-01-10 18:12:31,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:31,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146062436] [2022-01-10 18:12:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:31,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:31,315 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 18:12:31,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:31,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146062436] [2022-01-10 18:12:31,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146062436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:31,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:31,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 18:12:31,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515894522] [2022-01-10 18:12:31,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:31,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 18:12:31,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:31,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 18:12:31,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 18:12:31,318 INFO L87 Difference]: Start difference. First operand 24918 states and 41262 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:35,270 INFO L93 Difference]: Finished difference Result 44838 states and 73234 transitions. [2022-01-10 18:12:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 18:12:35,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-01-10 18:12:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:35,334 INFO L225 Difference]: With dead ends: 44838 [2022-01-10 18:12:35,335 INFO L226 Difference]: Without dead ends: 32500 [2022-01-10 18:12:35,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2022-01-10 18:12:35,357 INFO L933 BasicCegarLoop]: 1505 mSDtfsCounter, 9471 mSDsluCounter, 7014 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9471 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:35,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9471 Valid, 8519 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:12:35,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32500 states. [2022-01-10 18:12:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32500 to 20439. [2022-01-10 18:12:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20439 states, 20435 states have (on average 1.657646195253242) internal successors, (33874), 20438 states have internal predecessors, (33874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20439 states to 20439 states and 33874 transitions. [2022-01-10 18:12:37,584 INFO L78 Accepts]: Start accepts. Automaton has 20439 states and 33874 transitions. Word has length 115 [2022-01-10 18:12:37,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:37,585 INFO L470 AbstractCegarLoop]: Abstraction has 20439 states and 33874 transitions. [2022-01-10 18:12:37,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:37,585 INFO L276 IsEmpty]: Start isEmpty. Operand 20439 states and 33874 transitions. [2022-01-10 18:12:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 18:12:37,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:37,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:12:37,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:12:37,609 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:37,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash -369544617, now seen corresponding path program 1 times [2022-01-10 18:12:37,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:37,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155093820] [2022-01-10 18:12:37,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:37,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:37,724 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 18:12:37,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:37,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155093820] [2022-01-10 18:12:37,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155093820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:37,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:37,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:37,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090735046] [2022-01-10 18:12:37,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:37,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:37,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:37,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:37,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:37,725 INFO L87 Difference]: Start difference. First operand 20439 states and 33874 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:48,694 INFO L93 Difference]: Finished difference Result 103371 states and 165544 transitions. [2022-01-10 18:12:48,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:48,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-01-10 18:12:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:48,888 INFO L225 Difference]: With dead ends: 103371 [2022-01-10 18:12:48,889 INFO L226 Difference]: Without dead ends: 88424 [2022-01-10 18:12:48,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:48,932 INFO L933 BasicCegarLoop]: 1591 mSDtfsCounter, 6833 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6833 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:48,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6833 Valid, 6911 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:12:49,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88424 states. [2022-01-10 18:12:53,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88424 to 41096. [2022-01-10 18:12:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41096 states, 41092 states have (on average 1.652730458483403) internal successors, (67914), 41095 states have internal predecessors, (67914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41096 states to 41096 states and 67914 transitions. [2022-01-10 18:12:53,720 INFO L78 Accepts]: Start accepts. Automaton has 41096 states and 67914 transitions. Word has length 118 [2022-01-10 18:12:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:53,720 INFO L470 AbstractCegarLoop]: Abstraction has 41096 states and 67914 transitions. [2022-01-10 18:12:53,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:12:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 41096 states and 67914 transitions. [2022-01-10 18:12:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 18:12:53,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:53,748 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] [2022-01-10 18:12:53,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:12:53,748 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:53,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:53,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1006410568, now seen corresponding path program 1 times [2022-01-10 18:12:53,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:53,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324302986] [2022-01-10 18:12:53,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:53,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:53,859 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 18:12:53,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:53,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324302986] [2022-01-10 18:12:53,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324302986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:53,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:53,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:12:53,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653606735] [2022-01-10 18:12:53,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:53,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:12:53,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:53,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:12:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:53,861 INFO L87 Difference]: Start difference. First operand 41096 states and 67914 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)