/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_SUM.epf -i ../../../trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:59:45,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:59:45,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:59:45,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 02:59:45,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:59:45,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:59:45,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:59:45,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:59:45,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:59:45,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:59:45,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:59:45,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:59:45,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:59:45,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:59:45,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:59:45,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:59:45,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 02:59:45,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 02:59:45,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 02:59:45,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 02:59:45,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 02:59:45,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 02:59:45,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:59:45,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:59:45,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:59:45,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:59:45,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:59:45,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:59:45,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:59:45,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:59:45,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:59:45,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:59:45,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:59:45,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:59:45,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:59:45,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:59:45,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:59:45,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:59:45,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:59:45,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:59:45,334 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:59:45,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:59:45,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:59:45,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:59:45,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:59:45,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:59:45,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:59:45,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:59:45,336 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:59:45,336 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:59:45,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:59:45,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:59:45,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:59:45,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:59:45,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:59:45,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:59:45,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:59:45,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:59:45,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:59:45,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:59:45,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:59:45,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:59:45,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:59:45,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:59:45,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:59:45,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:59:45,339 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:59:45,339 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:59:45,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:59:45,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:59:45,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:59:45,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:59:45,549 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:59:45,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i [2022-01-11 02:59:45,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5801250fb/2924e1624a2b415e9f8cae1416bbaf4f/FLAG07802d74b [2022-01-11 02:59:45,949 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:59:45,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i [2022-01-11 02:59:45,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5801250fb/2924e1624a2b415e9f8cae1416bbaf4f/FLAG07802d74b [2022-01-11 02:59:45,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5801250fb/2924e1624a2b415e9f8cae1416bbaf4f [2022-01-11 02:59:45,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:59:45,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:59:45,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:59:45,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:59:45,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:59:45,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:59:45" (1/1) ... [2022-01-11 02:59:45,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee3e0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:45, skipping insertion in model container [2022-01-11 02:59:45,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:59:45" (1/1) ... [2022-01-11 02:59:45,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:59:45,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:59:46,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i[814,827] [2022-01-11 02:59:46,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:59:46,154 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:59:46,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i[814,827] [2022-01-11 02:59:46,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:59:46,174 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:59:46,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46 WrapperNode [2022-01-11 02:59:46,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:59:46,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:59:46,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:59:46,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:59:46,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,195 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-01-11 02:59:46,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:59:46,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:59:46,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:59:46,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:59:46,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:59:46,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:59:46,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:59:46,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:59:46,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:59:46,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:59:46,242 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) [2022-01-11 02:59:46,251 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 [2022-01-11 02:59:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:59:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:59:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 02:59:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 02:59:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:59:46,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:59:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 02:59:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 02:59:46,315 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:59:46,316 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:59:46,439 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:59:46,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:59:46,443 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 02:59:46,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:59:46 BoogieIcfgContainer [2022-01-11 02:59:46,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:59:46,445 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:59:46,445 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:59:46,446 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:59:46,448 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:59:46" (1/1) ... [2022-01-11 02:59:46,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:59:46 BasicIcfg [2022-01-11 02:59:46,561 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:59:46,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:59:46,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:59:46,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:59:46,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:59:45" (1/4) ... [2022-01-11 02:59:46,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3831a0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:59:46, skipping insertion in model container [2022-01-11 02:59:46,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:59:46" (2/4) ... [2022-01-11 02:59:46,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3831a0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:59:46, skipping insertion in model container [2022-01-11 02:59:46,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:59:46" (3/4) ... [2022-01-11 02:59:46,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3831a0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:59:46, skipping insertion in model container [2022-01-11 02:59:46,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:59:46" (4/4) ... [2022-01-11 02:59:46,566 INFO L111 eAbstractionObserver]: Analyzing ICFG array_assert_loop_dep.iTransformedIcfg [2022-01-11 02:59:46,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:59:46,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 02:59:46,599 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:59:46,604 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 [2022-01-11 02:59:46,604 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 02:59:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 02:59:46,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:59:46,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:59:46,617 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:59:46,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:59:46,624 INFO L85 PathProgramCache]: Analyzing trace with hash -533926056, now seen corresponding path program 1 times [2022-01-11 02:59:46,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:59:46,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911159376] [2022-01-11 02:59:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:59:46,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:59:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:59:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:59:46,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:59:46,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911159376] [2022-01-11 02:59:46,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911159376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:59:46,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:59:46,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:59:46,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107162624] [2022-01-11 02:59:46,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:59:46,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:59:46,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:59:46,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:59:46,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:59:46,801 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:59:46,809 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2022-01-11 02:59:46,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:59:46,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-01-11 02:59:46,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:59:46,816 INFO L225 Difference]: With dead ends: 28 [2022-01-11 02:59:46,816 INFO L226 Difference]: Without dead ends: 12 [2022-01-11 02:59:46,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:59:46,823 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:59:46,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:59:46,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-01-11 02:59:46,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-01-11 02:59:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-01-11 02:59:46,843 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2022-01-11 02:59:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:59:46,844 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-01-11 02:59:46,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-01-11 02:59:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 02:59:46,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:59:46,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:59:46,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:59:46,846 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:59:46,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:59:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash -533002535, now seen corresponding path program 1 times [2022-01-11 02:59:46,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:59:46,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669119613] [2022-01-11 02:59:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:59:46,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:59:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:59:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:59:46,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:59:46,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669119613] [2022-01-11 02:59:46,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669119613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:59:46,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:59:46,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 02:59:46,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415943883] [2022-01-11 02:59:46,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:59:46,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 02:59:46,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:59:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 02:59:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 02:59:46,969 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:47,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:59:47,019 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-01-11 02:59:47,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 02:59:47,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-01-11 02:59:47,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:59:47,021 INFO L225 Difference]: With dead ends: 29 [2022-01-11 02:59:47,021 INFO L226 Difference]: Without dead ends: 21 [2022-01-11 02:59:47,024 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 [2022-01-11 02:59:47,025 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:59:47,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:59:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-01-11 02:59:47,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2022-01-11 02:59:47,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:47,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-01-11 02:59:47,029 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 7 [2022-01-11 02:59:47,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:59:47,029 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-01-11 02:59:47,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:47,029 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-01-11 02:59:47,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 02:59:47,030 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:59:47,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:59:47,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:59:47,030 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:59:47,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:59:47,031 INFO L85 PathProgramCache]: Analyzing trace with hash -203917833, now seen corresponding path program 1 times [2022-01-11 02:59:47,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:59:47,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460821053] [2022-01-11 02:59:47,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:59:47,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:59:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:59:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:59:47,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:59:47,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460821053] [2022-01-11 02:59:47,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460821053] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:59:47,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160450887] [2022-01-11 02:59:47,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:59:47,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:59:47,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:59:47,133 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) [2022-01-11 02:59:47,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:59:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:59:47,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-11 02:59:47,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:59:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:59:47,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:59:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:59:47,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160450887] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:59:47,346 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:59:47,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-01-11 02:59:47,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26512005] [2022-01-11 02:59:47,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:59:47,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:59:47,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:59:47,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:59:47,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:59:47,348 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-01-11 02:59:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:59:47,480 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2022-01-11 02:59:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:59:47,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 9 [2022-01-11 02:59:47,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:59:47,481 INFO L225 Difference]: With dead ends: 53 [2022-01-11 02:59:47,481 INFO L226 Difference]: Without dead ends: 41 [2022-01-11 02:59:47,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-11 02:59:47,482 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 64 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:59:47,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 30 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:59:47,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-01-11 02:59:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 28. [2022-01-11 02:59:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-01-11 02:59:47,487 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 9 [2022-01-11 02:59:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:59:47,487 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-01-11 02:59:47,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-01-11 02:59:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-01-11 02:59:47,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 02:59:47,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:59:47,487 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:59:47,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-11 02:59:47,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:59:47,703 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:59:47,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:59:47,704 INFO L85 PathProgramCache]: Analyzing trace with hash -514562479, now seen corresponding path program 2 times [2022-01-11 02:59:47,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:59:47,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260135069] [2022-01-11 02:59:47,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:59:47,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:59:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:59:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:59:47,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:59:47,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260135069] [2022-01-11 02:59:47,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260135069] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:59:47,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804225637] [2022-01-11 02:59:47,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-11 02:59:47,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:59:47,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:59:47,840 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) [2022-01-11 02:59:47,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:59:47,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-11 02:59:47,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 02:59:47,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 27 conjunts are in the unsatisfiable core [2022-01-11 02:59:47,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:59:47,978 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-11 02:59:48,011 INFO L353 Elim1Store]: treesize reduction 55, result has 14.1 percent of original size [2022-01-11 02:59:48,011 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2022-01-11 02:59:48,050 INFO L353 Elim1Store]: treesize reduction 55, result has 14.1 percent of original size [2022-01-11 02:59:48,050 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2022-01-11 02:59:48,111 INFO L353 Elim1Store]: treesize reduction 55, result has 14.1 percent of original size [2022-01-11 02:59:48,111 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2022-01-11 02:59:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-11 02:59:48,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:59:50,253 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) is different from false [2022-01-11 02:59:52,287 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 4) (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) is different from false [2022-01-11 02:59:54,343 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| Int)) (= (select (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| 4) (* (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| 2147483648) 2) 18446744056529682432)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 4) (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) is different from false [2022-01-11 02:59:54,377 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 83 [2022-01-11 02:59:54,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 183 [2022-01-11 02:59:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2022-01-11 02:59:57,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804225637] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:59:57,738 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:59:57,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 9] total 17 [2022-01-11 02:59:57,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424884800] [2022-01-11 02:59:57,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:59:57,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-11 02:59:57,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:59:57,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-11 02:59:57,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=147, Unknown=4, NotChecked=78, Total=272 [2022-01-11 02:59:57,740 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:59:59,756 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10) (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| Int)) (= (select (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| 4) (* (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| 2147483648) 2) 18446744056529682432)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 4) (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (= |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 0)) is different from false [2022-01-11 03:00:01,763 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10) (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| Int)) (= (select (store (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| 4) (* (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_10| 2147483648) 2) 18446744056529682432)) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 4) (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (<= 1 (+ (* (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 1) 4294967296) 4294967296) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|))) is different from false [2022-01-11 03:00:03,769 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 4) (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) (<= 1 (+ (* (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 1) 4294967296) 4294967296) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|))) is different from false [2022-01-11 03:00:05,774 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (forall ((|v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| Int) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod (+ (mod (+ (* |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 4) (* 18446744056529682432 (mod (div |v_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int_8| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) (<= 2 (+ (* 4294967296 (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 2) 4294967296)) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|))) is different from false [2022-01-11 03:00:06,867 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0) (<= 2 (+ (* 4294967296 (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 2) 4294967296)) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|))) is different from false [2022-01-11 03:00:07,980 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int)) (= (select (store (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt|) 18446744073709551616) 10) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10)) (<= 3 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| (* 4294967296 (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int|) 3) 4294967296)))) (= (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.baseInt|) (mod |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 18446744073709551616)) 10) (= |c_ULTIMATE.start_ULTIMATE.start_main_~#a~0#1.offsetInt| 0)) is different from false [2022-01-11 03:00:08,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:00:08,493 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2022-01-11 03:00:08,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-11 03:00:08,493 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 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 [2022-01-11 03:00:08,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:00:08,494 INFO L225 Difference]: With dead ends: 72 [2022-01-11 03:00:08,494 INFO L226 Difference]: Without dead ends: 55 [2022-01-11 03:00:08,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=165, Invalid=563, Unknown=10, NotChecked=522, Total=1260 [2022-01-11 03:00:08,496 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 82 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 134 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 03:00:08,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 103 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 139 Invalid, 0 Unknown, 134 Unchecked, 0.3s Time] [2022-01-11 03:00:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-01-11 03:00:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 45. [2022-01-11 03:00:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:00:08,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-01-11 03:00:08,502 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 15 [2022-01-11 03:00:08,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:00:08,502 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-01-11 03:00:08,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:00:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-01-11 03:00:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-11 03:00:08,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:00:08,503 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:00:08,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-11 03:00:08,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-11 03:00:08,711 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:00:08,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:00:08,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1111439349, now seen corresponding path program 1 times [2022-01-11 03:00:08,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:00:08,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530220524] [2022-01-11 03:00:08,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:00:08,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:00:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:00:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 03:00:08,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:00:08,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530220524] [2022-01-11 03:00:08,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530220524] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 03:00:08,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815879982] [2022-01-11 03:00:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:00:08,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:00:08,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:00:08,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 03:00:08,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 03:00:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:00:09,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-11 03:00:09,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 03:00:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 03:00:17,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 03:00:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 03:00:18,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815879982] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 03:00:18,934 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 03:00:18,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2022-01-11 03:00:18,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858772687] [2022-01-11 03:00:18,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 03:00:18,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-11 03:00:18,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:00:18,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-11 03:00:18,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=236, Unknown=4, NotChecked=0, Total=342 [2022-01-11 03:00:18,935 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:00:29,952 WARN L228 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-11 03:00:38,732 WARN L228 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-11 03:00:45,484 WARN L228 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 37 DAG size of output: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-11 03:01:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:01:01,693 INFO L93 Difference]: Finished difference Result 116 states and 134 transitions. [2022-01-11 03:01:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-11 03:01:01,694 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 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 [2022-01-11 03:01:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:01:01,695 INFO L225 Difference]: With dead ends: 116 [2022-01-11 03:01:01,695 INFO L226 Difference]: Without dead ends: 84 [2022-01-11 03:01:01,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 50.3s TimeCoverageRelationStatistics Valid=239, Invalid=511, Unknown=6, NotChecked=0, Total=756 [2022-01-11 03:01:01,696 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 112 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-11 03:01:01,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 97 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 99 Invalid, 0 Unknown, 49 Unchecked, 1.6s Time] [2022-01-11 03:01:01,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-01-11 03:01:01,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 57. [2022-01-11 03:01:01,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.125) internal successors, (63), 56 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:01:01,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2022-01-11 03:01:01,712 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 22 [2022-01-11 03:01:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:01:01,712 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2022-01-11 03:01:01,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:01:01,713 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2022-01-11 03:01:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 03:01:01,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:01:01,713 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:01:01,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-11 03:01:01,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:01:01,914 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:01:01,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:01:01,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1067919191, now seen corresponding path program 2 times [2022-01-11 03:01:01,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:01:01,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432810650] [2022-01-11 03:01:01,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:01:01,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:01:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:01:02,165 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 03:01:02,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:01:02,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432810650] [2022-01-11 03:01:02,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432810650] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 03:01:02,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347989819] [2022-01-11 03:01:02,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-11 03:01:02,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:01:02,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:01:02,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 03:01:02,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-11 03:01:04,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-11 03:01:04,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 03:01:04,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 51 conjunts are in the unsatisfiable core [2022-01-11 03:01:04,135 INFO L286 TraceCheckSpWp]: Computing forward predicates...