/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:24:27,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:24:27,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:24:28,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:24:28,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:24:28,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:24:28,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:24:28,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:24:28,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:24:28,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:24:28,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:24:28,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:24:28,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:24:28,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:24:28,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:24:28,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:24:28,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:24:28,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:24:28,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:24:28,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:24:28,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:24:28,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:24:28,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:24:28,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:24:28,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 14:24:28,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 14:24:28,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 14:24:28,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 14:24:28,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 14:24:28,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 14:24:28,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:24:28,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:24:28,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:24:28,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 14:24:28,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:24:28,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:24:28,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:24:28,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:24:28,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:24:28,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:24:28,112 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:24:28,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:24:28,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:24:28,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:24:28,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:24:28,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:24:28,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:24:28,114 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:24:28,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:24:28,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:24:28,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:24:28,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:24:28,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:24:28,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:24:28,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:24:28,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:24:28,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:24:28,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:24:28,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:24:28,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:24:28,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:24:28,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:24:28,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:24:28,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:24:28,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:24:28,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:24:28,118 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:24:28,118 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:24:28,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:24:28,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:24:28,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:24:28,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:24:28,358 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:24:28,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-01-10 14:24:28,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea14f10c/aff25d318897480c8b2af83aadac3bdb/FLAG1fc84a9d9 [2022-01-10 14:24:28,775 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:24:28,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-01-10 14:24:28,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea14f10c/aff25d318897480c8b2af83aadac3bdb/FLAG1fc84a9d9 [2022-01-10 14:24:29,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea14f10c/aff25d318897480c8b2af83aadac3bdb [2022-01-10 14:24:29,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:24:29,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:24:29,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:24:29,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:24:29,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:24:29,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38dd61b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29, skipping insertion in model container [2022-01-10 14:24:29,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:24:29,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:24:29,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-01-10 14:24:29,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-01-10 14:24:29,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-01-10 14:24:29,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-01-10 14:24:29,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-01-10 14:24:29,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-01-10 14:24:29,479 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-01-10 14:24:29,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-01-10 14:24:29,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-01-10 14:24:29,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-01-10 14:24:29,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-01-10 14:24:29,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-01-10 14:24:29,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-01-10 14:24:29,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-01-10 14:24:29,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-01-10 14:24:29,513 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-01-10 14:24:29,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-01-10 14:24:29,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-01-10 14:24:29,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:24:29,536 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:24:29,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-01-10 14:24:29,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-01-10 14:24:29,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-01-10 14:24:29,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-01-10 14:24:29,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-01-10 14:24:29,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-01-10 14:24:29,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-01-10 14:24:29,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-01-10 14:24:29,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-01-10 14:24:29,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-01-10 14:24:29,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-01-10 14:24:29,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-01-10 14:24:29,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-01-10 14:24:29,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-01-10 14:24:29,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-01-10 14:24:29,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-01-10 14:24:29,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-01-10 14:24:29,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-01-10 14:24:29,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:24:29,617 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:24:29,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29 WrapperNode [2022-01-10 14:24:29,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:24:29,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:24:29,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:24:29,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:24:29,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,664 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 247 [2022-01-10 14:24:29,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:24:29,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:24:29,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:24:29,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:24:29,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:24:29,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:24:29,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:24:29,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:24:29,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (1/1) ... [2022-01-10 14:24:29,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:24:29,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:24:29,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 14:24:29,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 14:24:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:24:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:24:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:24:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:24:29,818 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:24:29,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:24:30,020 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:24:30,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:24:30,026 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 14:24:30,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:24:30 BoogieIcfgContainer [2022-01-10 14:24:30,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:24:30,028 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:24:30,028 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:24:30,029 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:24:30,031 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:24:30" (1/1) ... [2022-01-10 14:24:30,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:24:30 BasicIcfg [2022-01-10 14:24:30,168 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:24:30,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:24:30,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:24:30,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:24:30,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:24:29" (1/4) ... [2022-01-10 14:24:30,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f66127f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:24:30, skipping insertion in model container [2022-01-10 14:24:30,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:24:29" (2/4) ... [2022-01-10 14:24:30,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f66127f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:24:30, skipping insertion in model container [2022-01-10 14:24:30,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:24:30" (3/4) ... [2022-01-10 14:24:30,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f66127f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:24:30, skipping insertion in model container [2022-01-10 14:24:30,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:24:30" (4/4) ... [2022-01-10 14:24:30,174 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.cTransformedIcfg [2022-01-10 14:24:30,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:24:30,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-01-10 14:24:30,228 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:24:30,233 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 14:24:30,233 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-01-10 14:24:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 81 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 14:24:30,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:30,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:24:30,249 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:30,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:30,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1822758047, now seen corresponding path program 1 times [2022-01-10 14:24:30,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:30,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086664742] [2022-01-10 14:24:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:30,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:30,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:30,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086664742] [2022-01-10 14:24:30,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086664742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:30,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:30,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 14:24:30,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186876805] [2022-01-10 14:24:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:30,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 14:24:30,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 14:24:30,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 14:24:30,790 INFO L87 Difference]: Start difference. First operand has 82 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 81 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:31,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:31,069 INFO L93 Difference]: Finished difference Result 101 states and 132 transitions. [2022-01-10 14:24:31,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 14:24:31,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-01-10 14:24:31,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:31,080 INFO L225 Difference]: With dead ends: 101 [2022-01-10 14:24:31,080 INFO L226 Difference]: Without dead ends: 76 [2022-01-10 14:24:31,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 14:24:31,086 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 213 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:31,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 167 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 14:24:31,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-01-10 14:24:31,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-01-10 14:24:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 75 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:31,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-01-10 14:24:31,133 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 15 [2022-01-10 14:24:31,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:31,133 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-01-10 14:24:31,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-01-10 14:24:31,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 14:24:31,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:31,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:24:31,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:24:31,135 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:31,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:31,137 INFO L85 PathProgramCache]: Analyzing trace with hash 670925906, now seen corresponding path program 1 times [2022-01-10 14:24:31,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:31,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021074020] [2022-01-10 14:24:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:31,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:31,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:31,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021074020] [2022-01-10 14:24:31,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021074020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:31,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:31,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 14:24:31,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341688959] [2022-01-10 14:24:31,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:31,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 14:24:31,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:31,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 14:24:31,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:24:31,341 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:31,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:31,525 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2022-01-10 14:24:31,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 14:24:31,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-01-10 14:24:31,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:31,527 INFO L225 Difference]: With dead ends: 99 [2022-01-10 14:24:31,527 INFO L226 Difference]: Without dead ends: 97 [2022-01-10 14:24:31,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:24:31,528 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 234 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:31,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 184 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-01-10 14:24:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 74. [2022-01-10 14:24:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 73 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-01-10 14:24:31,543 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 16 [2022-01-10 14:24:31,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:31,544 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-01-10 14:24:31,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-01-10 14:24:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 14:24:31,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:31,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:24:31,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:24:31,545 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:31,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:31,546 INFO L85 PathProgramCache]: Analyzing trace with hash 514741878, now seen corresponding path program 1 times [2022-01-10 14:24:31,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:31,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222759204] [2022-01-10 14:24:31,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:31,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:31,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:31,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222759204] [2022-01-10 14:24:31,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222759204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:31,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:31,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 14:24:31,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840491609] [2022-01-10 14:24:31,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:31,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 14:24:31,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:31,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 14:24:31,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-10 14:24:31,994 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:32,436 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2022-01-10 14:24:32,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 14:24:32,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-01-10 14:24:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:32,439 INFO L225 Difference]: With dead ends: 97 [2022-01-10 14:24:32,439 INFO L226 Difference]: Without dead ends: 95 [2022-01-10 14:24:32,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-01-10 14:24:32,440 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 343 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:32,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 206 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 14:24:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-01-10 14:24:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 72. [2022-01-10 14:24:32,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 71 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2022-01-10 14:24:32,451 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 18 [2022-01-10 14:24:32,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:32,451 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2022-01-10 14:24:32,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,451 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2022-01-10 14:24:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 14:24:32,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:32,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:24:32,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 14:24:32,452 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1222869658, now seen corresponding path program 1 times [2022-01-10 14:24:32,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:32,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344590069] [2022-01-10 14:24:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:32,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:32,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:32,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344590069] [2022-01-10 14:24:32,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344590069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:32,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:32,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 14:24:32,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39295945] [2022-01-10 14:24:32,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:32,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 14:24:32,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:32,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 14:24:32,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 14:24:32,578 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:32,696 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2022-01-10 14:24:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 14:24:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-10 14:24:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:32,697 INFO L225 Difference]: With dead ends: 95 [2022-01-10 14:24:32,697 INFO L226 Difference]: Without dead ends: 93 [2022-01-10 14:24:32,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 14:24:32,698 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 159 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:32,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 181 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-01-10 14:24:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 70. [2022-01-10 14:24:32,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 69 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2022-01-10 14:24:32,707 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 19 [2022-01-10 14:24:32,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:32,707 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2022-01-10 14:24:32,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2022-01-10 14:24:32,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 14:24:32,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:32,708 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] [2022-01-10 14:24:32,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 14:24:32,708 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:32,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:32,709 INFO L85 PathProgramCache]: Analyzing trace with hash -596074847, now seen corresponding path program 1 times [2022-01-10 14:24:32,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:32,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896079001] [2022-01-10 14:24:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:32,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:32,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:32,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:32,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896079001] [2022-01-10 14:24:32,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896079001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:32,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:32,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:24:32,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688431360] [2022-01-10 14:24:32,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:32,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:24:32,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:32,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:24:32,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:24:32,769 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:32,932 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2022-01-10 14:24:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:24:32,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-01-10 14:24:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:32,933 INFO L225 Difference]: With dead ends: 93 [2022-01-10 14:24:32,933 INFO L226 Difference]: Without dead ends: 91 [2022-01-10 14:24:32,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:24:32,934 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 95 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:32,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 176 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:32,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-01-10 14:24:32,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 74. [2022-01-10 14:24:32,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 73 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2022-01-10 14:24:32,945 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 22 [2022-01-10 14:24:32,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:32,946 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2022-01-10 14:24:32,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:32,946 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2022-01-10 14:24:32,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 14:24:32,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:32,946 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] [2022-01-10 14:24:32,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 14:24:32,947 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:32,947 INFO L85 PathProgramCache]: Analyzing trace with hash -596105665, now seen corresponding path program 1 times [2022-01-10 14:24:32,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:32,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489454807] [2022-01-10 14:24:32,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:32,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:33,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:33,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489454807] [2022-01-10 14:24:33,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489454807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:33,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:33,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:24:33,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547444473] [2022-01-10 14:24:33,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:33,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:24:33,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:33,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:24:33,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:24:33,013 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:33,197 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2022-01-10 14:24:33,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:24:33,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-01-10 14:24:33,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:33,198 INFO L225 Difference]: With dead ends: 120 [2022-01-10 14:24:33,198 INFO L226 Difference]: Without dead ends: 118 [2022-01-10 14:24:33,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:24:33,199 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 93 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:33,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 301 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-01-10 14:24:33,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 75. [2022-01-10 14:24:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 74 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2022-01-10 14:24:33,209 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 22 [2022-01-10 14:24:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:33,210 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2022-01-10 14:24:33,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2022-01-10 14:24:33,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 14:24:33,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:33,211 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] [2022-01-10 14:24:33,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 14:24:33,211 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:33,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:33,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1298449744, now seen corresponding path program 1 times [2022-01-10 14:24:33,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:33,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442288170] [2022-01-10 14:24:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:33,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:33,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:33,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442288170] [2022-01-10 14:24:33,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442288170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:33,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:33,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:24:33,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284360833] [2022-01-10 14:24:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:33,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:24:33,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:33,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:24:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:24:33,265 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:33,399 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2022-01-10 14:24:33,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:24:33,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-01-10 14:24:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:33,400 INFO L225 Difference]: With dead ends: 89 [2022-01-10 14:24:33,400 INFO L226 Difference]: Without dead ends: 87 [2022-01-10 14:24:33,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:24:33,401 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 79 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:33,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 183 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-01-10 14:24:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2022-01-10 14:24:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 75 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2022-01-10 14:24:33,410 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 23 [2022-01-10 14:24:33,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:33,410 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2022-01-10 14:24:33,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2022-01-10 14:24:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 14:24:33,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:33,414 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] [2022-01-10 14:24:33,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 14:24:33,417 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:33,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1299405104, now seen corresponding path program 1 times [2022-01-10 14:24:33,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:33,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819773120] [2022-01-10 14:24:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:33,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:33,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:33,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:33,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819773120] [2022-01-10 14:24:33,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819773120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:33,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:33,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:24:33,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250804836] [2022-01-10 14:24:33,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:33,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:24:33,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:33,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:24:33,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:24:33,491 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:33,639 INFO L93 Difference]: Finished difference Result 116 states and 122 transitions. [2022-01-10 14:24:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:24:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-01-10 14:24:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:33,640 INFO L225 Difference]: With dead ends: 116 [2022-01-10 14:24:33,640 INFO L226 Difference]: Without dead ends: 114 [2022-01-10 14:24:33,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:24:33,641 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 80 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:33,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 304 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:33,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-01-10 14:24:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 77. [2022-01-10 14:24:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 76 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-01-10 14:24:33,652 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 23 [2022-01-10 14:24:33,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:33,652 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-01-10 14:24:33,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-01-10 14:24:33,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 14:24:33,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:33,653 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] [2022-01-10 14:24:33,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 14:24:33,654 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:33,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:33,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2025321748, now seen corresponding path program 1 times [2022-01-10 14:24:33,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:33,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183841807] [2022-01-10 14:24:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:33,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:33,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:33,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183841807] [2022-01-10 14:24:33,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183841807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:33,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:33,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:24:33,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686382729] [2022-01-10 14:24:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:33,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:24:33,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:24:33,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:24:33,685 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:33,772 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2022-01-10 14:24:33,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:24:33,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-01-10 14:24:33,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:33,773 INFO L225 Difference]: With dead ends: 124 [2022-01-10 14:24:33,773 INFO L226 Difference]: Without dead ends: 84 [2022-01-10 14:24:33,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:24:33,774 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:33,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 118 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:33,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-01-10 14:24:33,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2022-01-10 14:24:33,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 79 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2022-01-10 14:24:33,784 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 25 [2022-01-10 14:24:33,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:33,784 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2022-01-10 14:24:33,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:33,784 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2022-01-10 14:24:33,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 14:24:33,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:33,785 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] [2022-01-10 14:24:33,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 14:24:33,785 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:33,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:33,785 INFO L85 PathProgramCache]: Analyzing trace with hash -984469882, now seen corresponding path program 1 times [2022-01-10 14:24:33,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:33,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64703993] [2022-01-10 14:24:33,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:33,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:34,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:34,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64703993] [2022-01-10 14:24:34,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64703993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:34,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:24:34,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 14:24:34,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182088440] [2022-01-10 14:24:34,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:34,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 14:24:34,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:34,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 14:24:34,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-10 14:24:34,057 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:34,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:34,372 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2022-01-10 14:24:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 14:24:34,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2022-01-10 14:24:34,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:34,374 INFO L225 Difference]: With dead ends: 85 [2022-01-10 14:24:34,374 INFO L226 Difference]: Without dead ends: 83 [2022-01-10 14:24:34,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-10 14:24:34,375 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 212 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:34,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 99 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 14:24:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-01-10 14:24:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2022-01-10 14:24:34,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 77 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:34,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2022-01-10 14:24:34,386 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 26 [2022-01-10 14:24:34,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:34,387 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2022-01-10 14:24:34,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2022-01-10 14:24:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 14:24:34,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:34,387 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] [2022-01-10 14:24:34,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 14:24:34,388 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash -36478486, now seen corresponding path program 1 times [2022-01-10 14:24:34,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:34,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575549662] [2022-01-10 14:24:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:34,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:34,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:34,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575549662] [2022-01-10 14:24:34,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575549662] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:24:34,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674910769] [2022-01-10 14:24:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:34,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:24:34,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:24:34,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 14:24:34,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 14:24:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:34,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 14:24:34,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:24:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:34,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 14:24:34,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674910769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:24:34,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 14:24:34,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-01-10 14:24:34,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067636243] [2022-01-10 14:24:34,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:24:34,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 14:24:34,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:24:34,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 14:24:34,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 14:24:34,926 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:24:35,055 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2022-01-10 14:24:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 14:24:35,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2022-01-10 14:24:35,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:24:35,056 INFO L225 Difference]: With dead ends: 82 [2022-01-10 14:24:35,056 INFO L226 Difference]: Without dead ends: 80 [2022-01-10 14:24:35,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2022-01-10 14:24:35,057 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 209 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:24:35,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 112 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:24:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-01-10 14:24:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2022-01-10 14:24:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 77 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2022-01-10 14:24:35,067 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 26 [2022-01-10 14:24:35,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:24:35,067 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2022-01-10 14:24:35,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:24:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2022-01-10 14:24:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 14:24:35,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:24:35,068 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:24:35,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 14:24:35,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-10 14:24:35,292 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-10 14:24:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:24:35,292 INFO L85 PathProgramCache]: Analyzing trace with hash -36509304, now seen corresponding path program 1 times [2022-01-10 14:24:35,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:24:35,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341829869] [2022-01-10 14:24:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:35,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:24:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:24:35,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:24:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341829869] [2022-01-10 14:24:35,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341829869] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:24:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553999155] [2022-01-10 14:24:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:24:35,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:24:35,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:24:35,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 14:24:35,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 14:24:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:24:35,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-10 14:24:35,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:25:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:25:13,318 INFO L328 TraceCheckSpWp]: Computing backward predicates...