/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:55:09,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:55:09,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:55:09,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:55:09,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:55:09,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:55:09,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:55:09,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:55:09,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:55:09,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:55:09,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:55:09,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:55:09,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:55:09,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:55:09,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:55:09,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:55:09,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:55:09,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:55:09,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:55:09,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:55:09,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:55:09,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:55:09,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:55:09,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:55:09,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:55:09,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:55:09,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:55:09,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:55:09,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:55:09,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:55:09,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:55:09,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:55:09,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:55:09,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:55:09,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:55:09,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:55:09,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:55:09,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:55:09,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:55:09,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:55:09,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:55:09,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:55:09,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:55:09,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:55:09,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:55:09,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:55:09,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:55:09,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:55:09,672 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:55:09,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:55:09,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:55:09,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:55:09,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:55:09,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:55:09,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:55:09,673 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:55:09,673 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:55:09,673 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:55:09,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:55:09,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:55:09,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:55:09,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:55:09,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:55:09,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:55:09,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:55:09,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:55:09,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:55:09,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:55:09,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:55:09,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:55:09,675 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:55:09,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:55:09,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:55:09,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:55:09,676 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:55:09,676 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:55:09,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:55:09,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:55:09,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:55:09,872 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:55:09,872 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:55:09,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2022-01-10 23:55:09,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb477bf74/ce0b25edf4464445ae44e7b5469b083c/FLAG833b4e3c9 [2022-01-10 23:55:10,373 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:55:10,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2022-01-10 23:55:10,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb477bf74/ce0b25edf4464445ae44e7b5469b083c/FLAG833b4e3c9 [2022-01-10 23:55:10,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb477bf74/ce0b25edf4464445ae44e7b5469b083c [2022-01-10 23:55:10,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:55:10,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:55:10,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:55:10,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:55:10,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:55:10,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:55:10" (1/1) ... [2022-01-10 23:55:10,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ca40a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:10, skipping insertion in model container [2022-01-10 23:55:10,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:55:10" (1/1) ... [2022-01-10 23:55:10,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:55:10,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:55:11,200 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_spec3_product27.cil.c[40661,40674] [2022-01-10 23:55:11,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:55:11,273 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:55:11,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:55:11,369 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_spec3_product27.cil.c[40661,40674] [2022-01-10 23:55:11,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:55:11,402 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:55:11,476 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_spec3_product27.cil.c[40661,40674] [2022-01-10 23:55:11,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:55:11,526 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:55:11,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11 WrapperNode [2022-01-10 23:55:11,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:55:11,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:55:11,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:55:11,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:55:11,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,688 INFO L137 Inliner]: procedures = 136, calls = 237, calls flagged for inlining = 140, calls inlined = 378, statements flattened = 5730 [2022-01-10 23:55:11,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:55:11,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:55:11,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:55:11,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:55:11,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:55:11,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:55:11,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:55:11,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:55:11,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (1/1) ... [2022-01-10 23:55:11,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:55:11,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:55:11,831 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 23:55:11,847 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 23:55:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 23:55:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:55:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:55:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:55:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:55:12,091 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:55:12,093 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:55:14,141 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:55:14,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:55:14,157 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:55:14,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:55:14 BoogieIcfgContainer [2022-01-10 23:55:14,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:55:14,161 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:55:14,161 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:55:14,162 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:55:14,164 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:55:14" (1/1) ... [2022-01-10 23:55:14,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:55:14 BasicIcfg [2022-01-10 23:55:14,573 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:55:14,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:55:14,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:55:14,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:55:14,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:55:10" (1/4) ... [2022-01-10 23:55:14,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238224a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:55:14, skipping insertion in model container [2022-01-10 23:55:14,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:55:11" (2/4) ... [2022-01-10 23:55:14,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238224a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:55:14, skipping insertion in model container [2022-01-10 23:55:14,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:55:14" (3/4) ... [2022-01-10 23:55:14,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238224a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:55:14, skipping insertion in model container [2022-01-10 23:55:14,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:55:14" (4/4) ... [2022-01-10 23:55:14,628 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.cTransformedIcfg [2022-01-10 23:55:14,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:55:14,632 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-01-10 23:55:14,683 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:55:14,691 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:55:14,691 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-01-10 23:55:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 1199 states, 1186 states have (on average 1.672849915682968) internal successors, (1984), 1198 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:14,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 23:55:14,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:14,747 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 23:55:14,747 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:14,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:14,755 INFO L85 PathProgramCache]: Analyzing trace with hash -223730803, now seen corresponding path program 1 times [2022-01-10 23:55:14,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:14,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289727112] [2022-01-10 23:55:14,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:14,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:15,170 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 23:55:15,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:15,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289727112] [2022-01-10 23:55:15,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289727112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:15,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:15,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:55:15,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264273670] [2022-01-10 23:55:15,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:15,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:55:15,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:15,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:55:15,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:55:15,217 INFO L87 Difference]: Start difference. First operand has 1199 states, 1186 states have (on average 1.672849915682968) internal successors, (1984), 1198 states have internal predecessors, (1984), 0 states have call successors, (0), 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 28.0) 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 23:55:15,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:15,315 INFO L93 Difference]: Finished difference Result 2078 states and 3407 transitions. [2022-01-10 23:55:15,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:55:15,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) 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 23:55:15,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:15,334 INFO L225 Difference]: With dead ends: 2078 [2022-01-10 23:55:15,334 INFO L226 Difference]: Without dead ends: 1009 [2022-01-10 23:55:15,343 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 23:55:15,346 INFO L933 BasicCegarLoop]: 1958 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, 1958 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 23:55:15,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:55:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2022-01-10 23:55:15,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1009. [2022-01-10 23:55:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 997 states have (on average 1.6820461384152456) internal successors, (1677), 1008 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1677 transitions. [2022-01-10 23:55:15,433 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1677 transitions. Word has length 56 [2022-01-10 23:55:15,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:15,434 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1677 transitions. [2022-01-10 23:55:15,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) 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 23:55:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1677 transitions. [2022-01-10 23:55:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 23:55:15,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:15,436 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] [2022-01-10 23:55:15,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:55:15,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:15,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:15,438 INFO L85 PathProgramCache]: Analyzing trace with hash -177494497, now seen corresponding path program 1 times [2022-01-10 23:55:15,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:15,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718646333] [2022-01-10 23:55:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:15,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:15,635 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 23:55:15,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:15,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718646333] [2022-01-10 23:55:15,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718646333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:15,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:15,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:55:15,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099447111] [2022-01-10 23:55:15,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:15,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:55:15,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:15,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:55:15,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:55:15,644 INFO L87 Difference]: Start difference. First operand 1009 states and 1677 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:15,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:15,789 INFO L93 Difference]: Finished difference Result 1999 states and 3326 transitions. [2022-01-10 23:55:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:55:15,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 23:55:15,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:15,797 INFO L225 Difference]: With dead ends: 1999 [2022-01-10 23:55:15,797 INFO L226 Difference]: Without dead ends: 1009 [2022-01-10 23:55:15,799 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 23:55:15,800 INFO L933 BasicCegarLoop]: 1655 mSDtfsCounter, 1652 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:15,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1652 Valid, 1668 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:55:15,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2022-01-10 23:55:15,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1009. [2022-01-10 23:55:15,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 997 states have (on average 1.6800401203610833) internal successors, (1675), 1008 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1675 transitions. [2022-01-10 23:55:15,854 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1675 transitions. Word has length 57 [2022-01-10 23:55:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:15,856 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1675 transitions. [2022-01-10 23:55:15,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:15,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1675 transitions. [2022-01-10 23:55:15,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 23:55:15,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:15,867 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] [2022-01-10 23:55:15,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:55:15,867 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:15,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash -353906401, now seen corresponding path program 1 times [2022-01-10 23:55:15,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:15,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709471699] [2022-01-10 23:55:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:15,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:16,036 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 23:55:16,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:16,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709471699] [2022-01-10 23:55:16,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709471699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:16,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:16,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:55:16,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715251411] [2022-01-10 23:55:16,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:16,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:55:16,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:16,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:55:16,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:55:16,040 INFO L87 Difference]: Start difference. First operand 1009 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:16,426 INFO L93 Difference]: Finished difference Result 4913 states and 8171 transitions. [2022-01-10 23:55:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:55:16,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-01-10 23:55:16,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:16,442 INFO L225 Difference]: With dead ends: 4913 [2022-01-10 23:55:16,442 INFO L226 Difference]: Without dead ends: 3928 [2022-01-10 23:55:16,446 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 23:55:16,446 INFO L933 BasicCegarLoop]: 3273 mSDtfsCounter, 8158 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8158 SdHoareTripleChecker+Valid, 8170 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 23:55:16,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8158 Valid, 8170 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:55:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2022-01-10 23:55:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 1009. [2022-01-10 23:55:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 997 states have (on average 1.679037111334002) internal successors, (1674), 1008 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1674 transitions. [2022-01-10 23:55:16,549 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1674 transitions. Word has length 59 [2022-01-10 23:55:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:16,549 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1674 transitions. [2022-01-10 23:55:16,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1674 transitions. [2022-01-10 23:55:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 23:55:16,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:16,551 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] [2022-01-10 23:55:16,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:55:16,551 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:16,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash 693538035, now seen corresponding path program 1 times [2022-01-10 23:55:16,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:16,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625444357] [2022-01-10 23:55:16,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:16,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:55:16,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:16,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625444357] [2022-01-10 23:55:16,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625444357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:16,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:16,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:55:16,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973301841] [2022-01-10 23:55:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:16,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:55:16,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:55:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:55:16,688 INFO L87 Difference]: Start difference. First operand 1009 states and 1674 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:16,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:16,769 INFO L93 Difference]: Finished difference Result 2003 states and 3326 transitions. [2022-01-10 23:55:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:55:16,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-10 23:55:16,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:16,774 INFO L225 Difference]: With dead ends: 2003 [2022-01-10 23:55:16,774 INFO L226 Difference]: Without dead ends: 1023 [2022-01-10 23:55:16,776 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 23:55:16,782 INFO L933 BasicCegarLoop]: 1688 mSDtfsCounter, 1653 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 1710 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 23:55:16,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1653 Valid, 1710 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:55:16,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-01-10 23:55:16,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1009. [2022-01-10 23:55:16,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 997 states have (on average 1.6780341023069207) internal successors, (1673), 1008 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1673 transitions. [2022-01-10 23:55:16,846 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1673 transitions. Word has length 60 [2022-01-10 23:55:16,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:16,848 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1673 transitions. [2022-01-10 23:55:16,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:16,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1673 transitions. [2022-01-10 23:55:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:55:16,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:16,850 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] [2022-01-10 23:55:16,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:55:16,850 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1180797120, now seen corresponding path program 1 times [2022-01-10 23:55:16,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:16,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464714926] [2022-01-10 23:55:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:16,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:16,979 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 23:55:16,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:16,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464714926] [2022-01-10 23:55:16,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464714926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:16,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:16,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:55:16,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917610648] [2022-01-10 23:55:16,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:16,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:55:16,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:16,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:55:16,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:55:16,982 INFO L87 Difference]: Start difference. First operand 1009 states and 1673 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:17,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:17,253 INFO L93 Difference]: Finished difference Result 2961 states and 4919 transitions. [2022-01-10 23:55:17,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:55:17,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-10 23:55:17,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:17,261 INFO L225 Difference]: With dead ends: 2961 [2022-01-10 23:55:17,261 INFO L226 Difference]: Without dead ends: 1986 [2022-01-10 23:55:17,263 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 23:55:17,263 INFO L933 BasicCegarLoop]: 1682 mSDtfsCounter, 8081 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8081 SdHoareTripleChecker+Valid, 3378 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 23:55:17,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8081 Valid, 3378 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:55:17,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2022-01-10 23:55:17,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1009. [2022-01-10 23:55:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 997 states have (on average 1.6760280842527582) internal successors, (1671), 1008 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:17,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1671 transitions. [2022-01-10 23:55:17,338 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1671 transitions. Word has length 61 [2022-01-10 23:55:17,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:17,338 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1671 transitions. [2022-01-10 23:55:17,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1671 transitions. [2022-01-10 23:55:17,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:55:17,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:17,340 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] [2022-01-10 23:55:17,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:55:17,340 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:17,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:17,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1285034467, now seen corresponding path program 1 times [2022-01-10 23:55:17,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:17,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659898413] [2022-01-10 23:55:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:17,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:17,475 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 23:55:17,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:17,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659898413] [2022-01-10 23:55:17,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659898413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:17,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:17,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:55:17,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431109025] [2022-01-10 23:55:17,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:17,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:55:17,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:17,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:55:17,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:55:17,477 INFO L87 Difference]: Start difference. First operand 1009 states and 1671 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:18,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:18,075 INFO L93 Difference]: Finished difference Result 5970 states and 9828 transitions. [2022-01-10 23:55:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:55:18,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-01-10 23:55:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:18,095 INFO L225 Difference]: With dead ends: 5970 [2022-01-10 23:55:18,095 INFO L226 Difference]: Without dead ends: 5288 [2022-01-10 23:55:18,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:55:18,098 INFO L933 BasicCegarLoop]: 3136 mSDtfsCounter, 10557 mSDsluCounter, 10055 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10557 SdHoareTripleChecker+Valid, 13191 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:18,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10557 Valid, 13191 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:55:18,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5288 states. [2022-01-10 23:55:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5288 to 1739. [2022-01-10 23:55:18,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1727 states have (on average 1.6803705848291834) internal successors, (2902), 1738 states have internal predecessors, (2902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2902 transitions. [2022-01-10 23:55:18,258 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2902 transitions. Word has length 63 [2022-01-10 23:55:18,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:18,288 INFO L470 AbstractCegarLoop]: Abstraction has 1739 states and 2902 transitions. [2022-01-10 23:55:18,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2902 transitions. [2022-01-10 23:55:18,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:55:18,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:18,290 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] [2022-01-10 23:55:18,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:55:18,291 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:18,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:18,291 INFO L85 PathProgramCache]: Analyzing trace with hash 452362274, now seen corresponding path program 1 times [2022-01-10 23:55:18,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:18,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586599276] [2022-01-10 23:55:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:18,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:18,439 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 23:55:18,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:18,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586599276] [2022-01-10 23:55:18,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586599276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:18,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:18,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:55:18,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303725281] [2022-01-10 23:55:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:18,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:55:18,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:55:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:55:18,442 INFO L87 Difference]: Start difference. First operand 1739 states and 2902 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:18,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:18,705 INFO L93 Difference]: Finished difference Result 3107 states and 5120 transitions. [2022-01-10 23:55:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:55:18,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 23:55:18,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:18,713 INFO L225 Difference]: With dead ends: 3107 [2022-01-10 23:55:18,713 INFO L226 Difference]: Without dead ends: 1994 [2022-01-10 23:55:18,715 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 23:55:18,715 INFO L933 BasicCegarLoop]: 1653 mSDtfsCounter, 4701 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4701 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:18,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4701 Valid, 3137 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:55:18,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2022-01-10 23:55:18,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1739. [2022-01-10 23:55:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1727 states have (on average 1.6780544296467863) internal successors, (2898), 1738 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2898 transitions. [2022-01-10 23:55:18,851 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2898 transitions. Word has length 64 [2022-01-10 23:55:18,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:18,851 INFO L470 AbstractCegarLoop]: Abstraction has 1739 states and 2898 transitions. [2022-01-10 23:55:18,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:18,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2898 transitions. [2022-01-10 23:55:18,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:55:18,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:18,853 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] [2022-01-10 23:55:18,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:55:18,854 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1785174061, now seen corresponding path program 1 times [2022-01-10 23:55:18,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:18,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306042504] [2022-01-10 23:55:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:18,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:18,931 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 23:55:18,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:18,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306042504] [2022-01-10 23:55:18,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306042504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:18,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:18,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:55:18,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010779242] [2022-01-10 23:55:18,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:18,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:55:18,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:18,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:55:18,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:55:18,934 INFO L87 Difference]: Start difference. First operand 1739 states and 2898 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:19,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:19,307 INFO L93 Difference]: Finished difference Result 5094 states and 8523 transitions. [2022-01-10 23:55:19,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:55:19,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 23:55:19,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:19,321 INFO L225 Difference]: With dead ends: 5094 [2022-01-10 23:55:19,321 INFO L226 Difference]: Without dead ends: 3392 [2022-01-10 23:55:19,325 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 23:55:19,325 INFO L933 BasicCegarLoop]: 3241 mSDtfsCounter, 4944 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 4863 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 23:55:19,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4944 Valid, 4863 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:55:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2022-01-10 23:55:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 1739. [2022-01-10 23:55:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1727 states have (on average 1.6768963520555877) internal successors, (2896), 1738 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:19,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2896 transitions. [2022-01-10 23:55:19,498 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2896 transitions. Word has length 64 [2022-01-10 23:55:19,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:19,498 INFO L470 AbstractCegarLoop]: Abstraction has 1739 states and 2896 transitions. [2022-01-10 23:55:19,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:19,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2896 transitions. [2022-01-10 23:55:19,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 23:55:19,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:19,500 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] [2022-01-10 23:55:19,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:55:19,500 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:19,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:19,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1431918633, now seen corresponding path program 1 times [2022-01-10 23:55:19,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:19,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464035168] [2022-01-10 23:55:19,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:19,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:19,602 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 23:55:19,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:19,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464035168] [2022-01-10 23:55:19,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464035168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:19,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:19,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:55:19,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146327657] [2022-01-10 23:55:19,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:19,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:55:19,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:19,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:55:19,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:55:19,604 INFO L87 Difference]: Start difference. First operand 1739 states and 2896 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:20,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:20,650 INFO L93 Difference]: Finished difference Result 8173 states and 13180 transitions. [2022-01-10 23:55:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:55:20,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-10 23:55:20,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:20,675 INFO L225 Difference]: With dead ends: 8173 [2022-01-10 23:55:20,675 INFO L226 Difference]: Without dead ends: 7160 [2022-01-10 23:55:20,678 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 23:55:20,679 INFO L933 BasicCegarLoop]: 1647 mSDtfsCounter, 8000 mSDsluCounter, 6417 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8000 SdHoareTripleChecker+Valid, 8064 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:20,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8000 Valid, 8064 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:55:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7160 states. [2022-01-10 23:55:20,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7160 to 2848. [2022-01-10 23:55:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2836 states have (on average 1.6530324400564176) internal successors, (4688), 2847 states have internal predecessors, (4688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:20,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4688 transitions. [2022-01-10 23:55:20,989 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4688 transitions. Word has length 65 [2022-01-10 23:55:20,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:20,990 INFO L470 AbstractCegarLoop]: Abstraction has 2848 states and 4688 transitions. [2022-01-10 23:55:20,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4688 transitions. [2022-01-10 23:55:20,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 23:55:20,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:20,994 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] [2022-01-10 23:55:20,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:55:20,995 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1663876626, now seen corresponding path program 1 times [2022-01-10 23:55:20,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:20,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43709112] [2022-01-10 23:55:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:20,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:21,158 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 23:55:21,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:21,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43709112] [2022-01-10 23:55:21,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43709112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:21,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:21,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:55:21,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731341612] [2022-01-10 23:55:21,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:21,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:55:21,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:21,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:55:21,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:55:21,161 INFO L87 Difference]: Start difference. First operand 2848 states and 4688 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:21,843 INFO L93 Difference]: Finished difference Result 6131 states and 9921 transitions. [2022-01-10 23:55:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 23:55:21,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 23:55:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:21,865 INFO L225 Difference]: With dead ends: 6131 [2022-01-10 23:55:21,865 INFO L226 Difference]: Without dead ends: 4157 [2022-01-10 23:55:21,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-01-10 23:55:21,882 INFO L933 BasicCegarLoop]: 1771 mSDtfsCounter, 7945 mSDsluCounter, 5785 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7945 SdHoareTripleChecker+Valid, 7556 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:21,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7945 Valid, 7556 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:55:21,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4157 states. [2022-01-10 23:55:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4157 to 2686. [2022-01-10 23:55:22,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2674 states have (on average 1.643231114435303) internal successors, (4394), 2685 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4394 transitions. [2022-01-10 23:55:22,169 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4394 transitions. Word has length 66 [2022-01-10 23:55:22,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:22,169 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 4394 transitions. [2022-01-10 23:55:22,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4394 transitions. [2022-01-10 23:55:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 23:55:22,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:22,172 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] [2022-01-10 23:55:22,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:55:22,172 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:22,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash 741901541, now seen corresponding path program 1 times [2022-01-10 23:55:22,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:22,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870026325] [2022-01-10 23:55:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:22,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:22,325 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 23:55:22,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:22,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870026325] [2022-01-10 23:55:22,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870026325] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:22,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:22,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 23:55:22,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443983462] [2022-01-10 23:55:22,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:22,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:55:22,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:22,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:55:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:55:22,327 INFO L87 Difference]: Start difference. First operand 2686 states and 4394 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:25,381 INFO L93 Difference]: Finished difference Result 18563 states and 28912 transitions. [2022-01-10 23:55:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-10 23:55:25,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 23:55:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:25,426 INFO L225 Difference]: With dead ends: 18563 [2022-01-10 23:55:25,426 INFO L226 Difference]: Without dead ends: 17480 [2022-01-10 23:55:25,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=854, Unknown=0, NotChecked=0, Total=1190 [2022-01-10 23:55:25,435 INFO L933 BasicCegarLoop]: 3989 mSDtfsCounter, 13201 mSDsluCounter, 18478 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13201 SdHoareTripleChecker+Valid, 22467 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:25,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13201 Valid, 22467 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 23:55:25,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17480 states. [2022-01-10 23:55:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17480 to 4746. [2022-01-10 23:55:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4746 states, 4734 states have (on average 1.6273764258555132) internal successors, (7704), 4745 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4746 states to 4746 states and 7704 transitions. [2022-01-10 23:55:26,131 INFO L78 Accepts]: Start accepts. Automaton has 4746 states and 7704 transitions. Word has length 67 [2022-01-10 23:55:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:26,131 INFO L470 AbstractCegarLoop]: Abstraction has 4746 states and 7704 transitions. [2022-01-10 23:55:26,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 4746 states and 7704 transitions. [2022-01-10 23:55:26,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 23:55:26,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:26,134 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] [2022-01-10 23:55:26,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:55:26,135 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:26,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:26,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1554669621, now seen corresponding path program 1 times [2022-01-10 23:55:26,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:26,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7583693] [2022-01-10 23:55:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:26,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:26,290 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 23:55:26,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:26,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7583693] [2022-01-10 23:55:26,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7583693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:26,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:26,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 23:55:26,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824901400] [2022-01-10 23:55:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:26,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 23:55:26,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:26,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 23:55:26,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 23:55:26,292 INFO L87 Difference]: Start difference. First operand 4746 states and 7704 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:34,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:34,411 INFO L93 Difference]: Finished difference Result 51733 states and 81576 transitions. [2022-01-10 23:55:34,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-10 23:55:34,412 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-01-10 23:55:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:34,521 INFO L225 Difference]: With dead ends: 51733 [2022-01-10 23:55:34,522 INFO L226 Difference]: Without dead ends: 48449 [2022-01-10 23:55:34,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=526, Invalid=1366, Unknown=0, NotChecked=0, Total=1892 [2022-01-10 23:55:34,545 INFO L933 BasicCegarLoop]: 2404 mSDtfsCounter, 26680 mSDsluCounter, 21232 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26680 SdHoareTripleChecker+Valid, 23636 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:34,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26680 Valid, 23636 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 23:55:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48449 states. [2022-01-10 23:55:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48449 to 13329. [2022-01-10 23:55:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13329 states, 13317 states have (on average 1.6164301269054593) internal successors, (21526), 13328 states have internal predecessors, (21526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13329 states to 13329 states and 21526 transitions. [2022-01-10 23:55:36,689 INFO L78 Accepts]: Start accepts. Automaton has 13329 states and 21526 transitions. Word has length 68 [2022-01-10 23:55:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:36,690 INFO L470 AbstractCegarLoop]: Abstraction has 13329 states and 21526 transitions. [2022-01-10 23:55:36,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 13329 states and 21526 transitions. [2022-01-10 23:55:36,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 23:55:36,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:36,697 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] [2022-01-10 23:55:36,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:55:36,697 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:36,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:36,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1555682515, now seen corresponding path program 1 times [2022-01-10 23:55:36,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:36,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065722266] [2022-01-10 23:55:36,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:36,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:36,936 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 23:55:36,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:36,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065722266] [2022-01-10 23:55:36,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065722266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:36,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:36,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 23:55:36,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316840451] [2022-01-10 23:55:36,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:36,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:55:36,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:36,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:55:36,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:55:36,938 INFO L87 Difference]: Start difference. First operand 13329 states and 21526 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:46,564 INFO L93 Difference]: Finished difference Result 56282 states and 87619 transitions. [2022-01-10 23:55:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-10 23:55:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-01-10 23:55:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:46,679 INFO L225 Difference]: With dead ends: 56282 [2022-01-10 23:55:46,679 INFO L226 Difference]: Without dead ends: 50813 [2022-01-10 23:55:46,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=854, Unknown=0, NotChecked=0, Total=1190 [2022-01-10 23:55:46,702 INFO L933 BasicCegarLoop]: 4090 mSDtfsCounter, 12729 mSDsluCounter, 18627 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12729 SdHoareTripleChecker+Valid, 22717 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:46,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12729 Valid, 22717 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 23:55:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50813 states. [2022-01-10 23:55:48,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50813 to 13365. [2022-01-10 23:55:48,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13365 states, 13353 states have (on average 1.6147682168801019) internal successors, (21562), 13364 states have internal predecessors, (21562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:48,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 21562 transitions. [2022-01-10 23:55:48,941 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 21562 transitions. Word has length 68 [2022-01-10 23:55:48,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:55:48,941 INFO L470 AbstractCegarLoop]: Abstraction has 13365 states and 21562 transitions. [2022-01-10 23:55:48,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:48,942 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 21562 transitions. [2022-01-10 23:55:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 23:55:48,949 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:55:48,949 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] [2022-01-10 23:55:48,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:55:48,949 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:55:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:55:48,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1021506582, now seen corresponding path program 1 times [2022-01-10 23:55:48,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:55:48,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304555932] [2022-01-10 23:55:48,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:55:48,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:55:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:55:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:55:49,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:55:49,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304555932] [2022-01-10 23:55:49,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304555932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:55:49,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:55:49,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:55:49,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313945035] [2022-01-10 23:55:49,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:55:49,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:55:49,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:55:49,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:55:49,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:55:49,061 INFO L87 Difference]: Start difference. First operand 13365 states and 21562 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:55:59,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:55:59,402 INFO L93 Difference]: Finished difference Result 68405 states and 107921 transitions. [2022-01-10 23:55:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:55:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-01-10 23:55:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:55:59,520 INFO L225 Difference]: With dead ends: 68405 [2022-01-10 23:55:59,521 INFO L226 Difference]: Without dead ends: 57619 [2022-01-10 23:55:59,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 23:55:59,553 INFO L933 BasicCegarLoop]: 1770 mSDtfsCounter, 6830 mSDsluCounter, 4644 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6830 SdHoareTripleChecker+Valid, 6414 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:55:59,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6830 Valid, 6414 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:55:59,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57619 states. [2022-01-10 23:56:02,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57619 to 13585. [2022-01-10 23:56:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13585 states, 13573 states have (on average 1.606277167906874) internal successors, (21802), 13584 states have internal predecessors, (21802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:56:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13585 states to 13585 states and 21802 transitions. [2022-01-10 23:56:02,205 INFO L78 Accepts]: Start accepts. Automaton has 13585 states and 21802 transitions. Word has length 68 [2022-01-10 23:56:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:56:02,206 INFO L470 AbstractCegarLoop]: Abstraction has 13585 states and 21802 transitions. [2022-01-10 23:56:02,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:56:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 13585 states and 21802 transitions. [2022-01-10 23:56:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 23:56:02,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:56:02,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:56:02,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:56:02,213 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 23:56:02,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:56:02,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1218020087, now seen corresponding path program 1 times [2022-01-10 23:56:02,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:56:02,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961119747] [2022-01-10 23:56:02,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:56:02,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:56:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:56:02,311 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 23:56:02,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:56:02,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961119747] [2022-01-10 23:56:02,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961119747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:56:02,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:56:02,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:56:02,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125447471] [2022-01-10 23:56:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:56:02,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:56:02,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:56:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:56:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:56:02,313 INFO L87 Difference]: Start difference. First operand 13585 states and 21802 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:56:10,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:56:10,493 INFO L93 Difference]: Finished difference Result 47982 states and 74771 transitions. [2022-01-10 23:56:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:56:10,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-01-10 23:56:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:56:10,546 INFO L225 Difference]: With dead ends: 47982 [2022-01-10 23:56:10,546 INFO L226 Difference]: Without dead ends: 41470 [2022-01-10 23:56:10,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 23:56:10,560 INFO L933 BasicCegarLoop]: 3764 mSDtfsCounter, 3266 mSDsluCounter, 7672 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 11436 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:56:10,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3266 Valid, 11436 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:56:10,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41470 states.