/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/list-simple/dll2c_prepend_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:47:34,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:47:34,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:47:34,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:47:34,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:47:34,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:47:34,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:47:34,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:47:34,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:47:34,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:47:34,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:47:34,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:47:34,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:47:34,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:47:34,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:47:34,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:47:34,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:47:34,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:47:34,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:47:34,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:47:34,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:47:34,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:47:34,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:47:34,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:47:34,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:47:34,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:47:34,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:47:34,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:47:34,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:47:34,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:47:34,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:47:34,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:47:34,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:47:34,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:47:34,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:47:34,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:47:34,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:47:34,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:47:34,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:47:34,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:47:34,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:47:34,235 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 17:47:34,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:47:34,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:47:34,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:47:34,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:47:34,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:47:34,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:47:34,261 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:47:34,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:47:34,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:47:34,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:47:34,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:47:34,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:47:34,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:47:34,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:47:34,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:47:34,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:47:34,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:47:34,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:47:34,266 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:47:34,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:47:34,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:47:34,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:47:34,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:47:34,268 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:47:34,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:47:34,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:47:34,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:47:34,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:47:34,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:47:34,466 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:47:34,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_prepend_equal.i [2022-01-10 17:47:34,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79edfc47d/74bba85184f546eeaa456fa1bd15c556/FLAG5a38ddb14 [2022-01-10 17:47:34,896 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:47:34,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_prepend_equal.i [2022-01-10 17:47:34,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79edfc47d/74bba85184f546eeaa456fa1bd15c556/FLAG5a38ddb14 [2022-01-10 17:47:34,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79edfc47d/74bba85184f546eeaa456fa1bd15c556 [2022-01-10 17:47:34,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:47:34,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:47:34,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:47:34,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:47:34,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:47:34,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:47:34" (1/1) ... [2022-01-10 17:47:34,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec89183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:34, skipping insertion in model container [2022-01-10 17:47:34,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:47:34" (1/1) ... [2022-01-10 17:47:34,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:47:34,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:47:35,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_prepend_equal.i[24640,24653] [2022-01-10 17:47:35,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:47:35,197 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:47:35,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_prepend_equal.i[24640,24653] [2022-01-10 17:47:35,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:47:35,239 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:47:35,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35 WrapperNode [2022-01-10 17:47:35,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:47:35,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:47:35,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:47:35,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:47:35,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,272 INFO L137 Inliner]: procedures = 130, calls = 47, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 163 [2022-01-10 17:47:35,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:47:35,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:47:35,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:47:35,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:47:35,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:47:35,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:47:35,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:47:35,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:47:35,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:47:35,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:47:35,324 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 17:47:35,342 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 17:47:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 17:47:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 17:47:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:47:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 17:47:35,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 17:47:35,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 17:47:35,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 17:47:35,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 17:47:35,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 17:47:35,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:47:35,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:47:35,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:47:35,440 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:47:35,445 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:47:35,822 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:47:35,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:47:35,827 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 17:47:35,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:47:35 BoogieIcfgContainer [2022-01-10 17:47:35,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:47:35,829 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:47:35,829 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:47:35,830 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:47:35,831 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:47:35" (1/1) ... [2022-01-10 17:47:35,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:47:35 BasicIcfg [2022-01-10 17:47:35,906 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:47:35,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:47:35,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:47:35,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:47:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:47:34" (1/4) ... [2022-01-10 17:47:35,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7dfead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:47:35, skipping insertion in model container [2022-01-10 17:47:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:47:35" (2/4) ... [2022-01-10 17:47:35,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7dfead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:47:35, skipping insertion in model container [2022-01-10 17:47:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:47:35" (3/4) ... [2022-01-10 17:47:35,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7dfead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:47:35, skipping insertion in model container [2022-01-10 17:47:35,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:47:35" (4/4) ... [2022-01-10 17:47:35,910 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2c_prepend_equal.iTransformedIcfg [2022-01-10 17:47:35,915 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:47:35,915 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 17:47:35,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:47:35,948 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 17:47:35,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 17:47:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 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 17:47:35,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 17:47:35,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:47:35,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:47:35,963 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:47:35,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:47:35,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1320976623, now seen corresponding path program 1 times [2022-01-10 17:47:35,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:47:35,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57610365] [2022-01-10 17:47:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:47:35,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:47:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:47:36,215 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 17:47:36,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:47:36,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57610365] [2022-01-10 17:47:36,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57610365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:47:36,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:47:36,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:47:36,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732469506] [2022-01-10 17:47:36,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:47:36,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 17:47:36,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:47:36,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 17:47:36,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 17:47:36,249 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 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 8.0) internal successors, (16), 2 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 17:47:36,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:47:36,263 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2022-01-10 17:47:36,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 17:47:36,265 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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 17:47:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:47:36,271 INFO L225 Difference]: With dead ends: 57 [2022-01-10 17:47:36,271 INFO L226 Difference]: Without dead ends: 25 [2022-01-10 17:47:36,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 17:47:36,285 INFO L933 BasicCegarLoop]: 44 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, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:47:36,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:47:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-10 17:47:36,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-01-10 17:47:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 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 17:47:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-01-10 17:47:36,311 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 16 [2022-01-10 17:47:36,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:47:36,312 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-01-10 17:47:36,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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 17:47:36,313 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-01-10 17:47:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 17:47:36,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:47:36,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:47:36,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:47:36,314 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:47:36,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:47:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1177038291, now seen corresponding path program 1 times [2022-01-10 17:47:36,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:47:36,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789207552] [2022-01-10 17:47:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:47:36,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:47:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:47:36,791 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 17:47:36,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:47:36,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789207552] [2022-01-10 17:47:36,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789207552] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:47:36,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:47:36,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 17:47:36,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117241406] [2022-01-10 17:47:36,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:47:36,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 17:47:36,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:47:36,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 17:47:36,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 17:47:36,795 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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 17:47:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:47:37,317 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2022-01-10 17:47:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 17:47:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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 17:47:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:47:37,319 INFO L225 Difference]: With dead ends: 65 [2022-01-10 17:47:37,319 INFO L226 Difference]: Without dead ends: 45 [2022-01-10 17:47:37,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-01-10 17:47:37,320 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 105 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 17:47:37,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 67 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 17:47:37,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-10 17:47:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2022-01-10 17:47:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 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 17:47:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2022-01-10 17:47:37,326 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2022-01-10 17:47:37,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:47:37,326 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-01-10 17:47:37,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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 17:47:37,327 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-01-10 17:47:37,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 17:47:37,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:47:37,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:47:37,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:47:37,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:47:37,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:47:37,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1177961812, now seen corresponding path program 1 times [2022-01-10 17:47:37,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:47:37,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482915633] [2022-01-10 17:47:37,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:47:37,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:47:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:47:37,463 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 17:47:37,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:47:37,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482915633] [2022-01-10 17:47:37,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482915633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:47:37,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:47:37,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:47:37,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375281248] [2022-01-10 17:47:37,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:47:37,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:47:37,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:47:37,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:47:37,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:47:37,465 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 17:47:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:47:37,475 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2022-01-10 17:47:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:47:37,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 17:47:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:47:37,476 INFO L225 Difference]: With dead ends: 44 [2022-01-10 17:47:37,476 INFO L226 Difference]: Without dead ends: 30 [2022-01-10 17:47:37,477 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 17:47:37,477 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:47:37,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 44 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:47:37,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-10 17:47:37,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-01-10 17:47:37,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 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 17:47:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-01-10 17:47:37,482 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 16 [2022-01-10 17:47:37,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:47:37,482 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-01-10 17:47:37,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 17:47:37,483 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-01-10 17:47:37,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 17:47:37,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:47:37,483 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 17:47:37,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:47:37,483 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:47:37,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:47:37,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1236854934, now seen corresponding path program 1 times [2022-01-10 17:47:37,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:47:37,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536797363] [2022-01-10 17:47:37,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:47:37,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:47:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:47:37,789 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 17:47:37,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:47:37,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536797363] [2022-01-10 17:47:37,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536797363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:47:37,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:47:37,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 17:47:37,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128002863] [2022-01-10 17:47:37,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:47:37,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 17:47:37,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:47:37,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 17:47:37,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-10 17:47:37,793 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 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 17:47:38,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:47:38,364 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-01-10 17:47:38,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 17:47:38,365 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 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 17:47:38,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:47:38,365 INFO L225 Difference]: With dead ends: 50 [2022-01-10 17:47:38,365 INFO L226 Difference]: Without dead ends: 30 [2022-01-10 17:47:38,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2022-01-10 17:47:38,367 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 78 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 17:47:38,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 36 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 17:47:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-10 17:47:38,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-01-10 17:47:38,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 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 17:47:38,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-01-10 17:47:38,371 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 22 [2022-01-10 17:47:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:47:38,371 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-01-10 17:47:38,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 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 17:47:38,372 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-01-10 17:47:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 17:47:38,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:47:38,372 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 17:47:38,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:47:38,373 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:47:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:47:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1235931413, now seen corresponding path program 1 times [2022-01-10 17:47:38,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:47:38,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664257346] [2022-01-10 17:47:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:47:38,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:47:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:47:39,843 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 17:47:39,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:47:39,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664257346] [2022-01-10 17:47:39,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664257346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:47:39,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:47:39,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-10 17:47:39,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672337615] [2022-01-10 17:47:39,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:47:39,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 17:47:39,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:47:39,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 17:47:39,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-01-10 17:47:39,845 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 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 17:47:41,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:47:41,389 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-01-10 17:47:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 17:47:41,389 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 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 17:47:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:47:41,390 INFO L225 Difference]: With dead ends: 35 [2022-01-10 17:47:41,390 INFO L226 Difference]: Without dead ends: 33 [2022-01-10 17:47:41,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2022-01-10 17:47:41,393 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 103 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 17:47:41,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 38 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 17:47:41,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-01-10 17:47:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-01-10 17:47:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 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 17:47:41,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-01-10 17:47:41,399 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 22 [2022-01-10 17:47:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:47:41,399 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-01-10 17:47:41,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 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 17:47:41,399 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-01-10 17:47:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 17:47:41,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:47:41,400 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 17:47:41,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:47:41,400 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:47:41,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:47:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1123040689, now seen corresponding path program 1 times [2022-01-10 17:47:41,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:47:41,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597847443] [2022-01-10 17:47:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:47:41,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:47:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:47:42,628 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 17:47:42,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:47:42,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597847443] [2022-01-10 17:47:42,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597847443] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 17:47:42,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368448845] [2022-01-10 17:47:42,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:47:42,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 17:47:42,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:47:42,630 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 17:47:42,631 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 17:47:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:47:43,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 151 conjunts are in the unsatisfiable core [2022-01-10 17:47:43,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 17:47:43,136 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-10 17:47:43,136 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-01-10 17:47:43,328 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-10 17:47:43,328 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-10 17:47:43,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:43,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:43,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:43,440 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-01-10 17:47:43,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:43,550 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-10 17:47:43,664 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-10 17:47:43,664 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 43 [2022-01-10 17:47:43,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:43,993 INFO L353 Elim1Store]: treesize reduction 156, result has 19.6 percent of original size [2022-01-10 17:47:43,995 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 64 [2022-01-10 17:47:44,763 INFO L353 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-01-10 17:47:44,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-01-10 17:47:45,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:45,930 INFO L353 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-01-10 17:47:45,930 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 121 treesize of output 97 [2022-01-10 17:47:45,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:45,941 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-10 17:47:47,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:47,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:47,053 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 306 [2022-01-10 17:47:47,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:47,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:47,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:47:47,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:47,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:47:47,140 INFO L353 Elim1Store]: treesize reduction 99, result has 18.9 percent of original size [2022-01-10 17:47:47,140 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 703 treesize of output 300 [2022-01-10 17:47:47,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:47,941 INFO L353 Elim1Store]: treesize reduction 1672, result has 12.0 percent of original size [2022-01-10 17:47:47,941 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 9 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 17 new quantified variables, introduced 63 case distinctions, treesize of input 1538 treesize of output 971 [2022-01-10 17:47:47,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:47:47,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:47,976 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1013 treesize of output 615 [2022-01-10 17:47:48,005 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2022-01-10 17:47:48,047 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2022-01-10 17:47:48,069 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2022-01-10 17:47:48,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,124 INFO L353 Elim1Store]: treesize reduction 38, result has 54.2 percent of original size [2022-01-10 17:47:48,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 152 [2022-01-10 17:47:48,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-01-10 17:47:48,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2022-01-10 17:47:48,207 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-01-10 17:47:48,234 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 15 [2022-01-10 17:47:48,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,283 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:47:48,283 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 57 [2022-01-10 17:47:48,353 INFO L353 Elim1Store]: treesize reduction 27, result has 46.0 percent of original size [2022-01-10 17:47:48,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 92 [2022-01-10 17:47:48,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,449 INFO L353 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-01-10 17:47:48,449 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 562 treesize of output 413 [2022-01-10 17:47:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,473 INFO L353 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-01-10 17:47:48,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 552 treesize of output 395 [2022-01-10 17:47:48,486 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 381 treesize of output 315 [2022-01-10 17:47:48,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,509 INFO L353 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-01-10 17:47:48,510 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 539 treesize of output 398 [2022-01-10 17:47:48,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,532 INFO L353 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-01-10 17:47:48,533 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 586 treesize of output 425 [2022-01-10 17:47:48,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,555 INFO L353 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-01-10 17:47:48,556 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 552 treesize of output 403 [2022-01-10 17:47:48,567 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 372 treesize of output 310 [2022-01-10 17:47:48,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,588 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:47:48,588 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 73 [2022-01-10 17:47:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,644 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:47:48,644 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 87 [2022-01-10 17:47:48,782 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 13 treesize of output 5 [2022-01-10 17:47:48,832 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 13 treesize of output 5 [2022-01-10 17:47:48,851 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 39 [2022-01-10 17:47:48,950 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 13 treesize of output 5 [2022-01-10 17:47:48,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:48,971 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 17:47:48,971 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 117 [2022-01-10 17:47:48,978 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 11 treesize of output 9 [2022-01-10 17:47:49,081 INFO L353 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-01-10 17:47:49,082 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 1 [2022-01-10 17:47:49,283 INFO L353 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2022-01-10 17:47:49,283 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 42 [2022-01-10 17:47:49,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:49,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 17:47:49,707 INFO L353 Elim1Store]: treesize reduction 69, result has 4.2 percent of original size [2022-01-10 17:47:49,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 170 treesize of output 74 [2022-01-10 17:47:49,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 17:47:49,718 INFO L353 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-01-10 17:47:49,718 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 19 [2022-01-10 17:47:49,767 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 17:47:49,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 17:47:50,018 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1109 (Array Int Int)) (v_ArrVal_1108 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1| Int) (v_ArrVal_1118 (Array Int Int)) (v_ArrVal_1106 (Array Int Int)) (v_ArrVal_1105 (Array Int Int)) (v_ArrVal_1103 (Array Int Int)) (v_ArrVal_1112 (Array Int Int)) (v_ArrVal_1088 (Array Int Int)) (v_ArrVal_1099 (Array Int Int)) (v_ArrVal_1098 (Array Int Int)) (v_ArrVal_1120 (Array Int Int)) (v_ArrVal_1084 (Array Int Int)) (v_ArrVal_1095 (Array Int Int)) (v_ArrVal_1092 (Array Int Int)) (v_ArrVal_1090 (Array Int Int))) (let ((.cse8 (select |c_#memory_$Pointer$.baseInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt|))) (let ((.cse5 (select .cse8 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt|)) (.cse10 (select |c_#memory_$Pointer$.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt|))) (let ((.cse6 (select (select |c_#memory_$Pointer$.baseInt| .cse5) (mod (+ 8 (select .cse10 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt|)) 18446744073709551616))) (.cse7 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.offsetInt| 8) 18446744073709551616))) (let ((.cse3 (store (let ((.cse9 (store |c_#memory_$Pointer$.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| (store .cse10 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.offsetInt|)))) (store (store (store .cse9 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| v_ArrVal_1099) .cse5 v_ArrVal_1105) .cse6 (store (select (store (store .cse9 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| v_ArrVal_1118) .cse5 v_ArrVal_1098) .cse6) |v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.offsetInt|))) |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| (store (select (store (store (store (store |c_#memory_$Pointer$.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| v_ArrVal_1103) |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| v_ArrVal_1092) .cse5 v_ArrVal_1120) .cse6 v_ArrVal_1095) |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt|) .cse7 |v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1|))) (.cse0 (let ((.cse4 (store |c_#memory_$Pointer$.baseInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| (store .cse8 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt|)))) (store (store (store (store .cse4 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| v_ArrVal_1108) .cse5 v_ArrVal_1090) .cse6 (store (select (store (store .cse4 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| v_ArrVal_1084) .cse5 v_ArrVal_1109) .cse6) |v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt|)) |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| (store (select (store (store (store (store |c_#memory_$Pointer$.baseInt| |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| v_ArrVal_1106) |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt| (store (select .cse4 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.offsetInt| .cse5)) .cse5 v_ArrVal_1112) .cse6 v_ArrVal_1088) |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~new_head~1#1.baseInt|) .cse7 .cse6))))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.offsetInt|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.offsetInt|))) (or (not (= (select (select .cse0 .cse1) .cse2) .cse1)) (not (= .cse2 (select (select .cse3 .cse1) .cse2)))))))))) is different from false [2022-01-10 17:47:50,341 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1109 (Array Int Int)) (v_ArrVal_1108 (Array Int Int)) (v_ArrVal_1118 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1| Int) (v_ArrVal_1106 (Array Int Int)) (v_ArrVal_1105 (Array Int Int)) (v_ArrVal_1103 (Array Int Int)) (v_ArrVal_1112 (Array Int Int)) (v_ArrVal_1099 (Array Int Int)) (v_ArrVal_1088 (Array Int Int)) (v_ArrVal_1098 (Array Int Int)) (v_ArrVal_1120 (Array Int Int)) (v_ArrVal_1095 (Array Int Int)) (v_ArrVal_1084 (Array Int Int)) (v_ArrVal_1083 (Array Int Int)) (v_ArrVal_1082 (Array Int Int)) (v_ArrVal_1092 (Array Int Int)) (v_ArrVal_1090 (Array Int Int))) (let ((.cse8 (store |c_#memory_$Pointer$.baseInt| |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| v_ArrVal_1083)) (.cse12 (store |c_#memory_$Pointer$.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| v_ArrVal_1082))) (let ((.cse13 (select .cse12 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt|)) (.cse10 (select .cse8 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt|))) (let ((.cse6 (select .cse10 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt|)) (.cse0 (select .cse13 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt|))) (let ((.cse7 (select (select .cse8 .cse6) (mod (+ .cse0 8) 18446744073709551616))) (.cse9 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.offsetInt| 8) 18446744073709551616))) (let ((.cse2 (store (let ((.cse11 (store .cse12 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| (store .cse13 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.offsetInt|)))) (store (store (store .cse11 |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| v_ArrVal_1099) .cse6 v_ArrVal_1105) .cse7 (store (select (store (store .cse11 |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| v_ArrVal_1118) .cse6 v_ArrVal_1098) .cse7) |v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1| |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.offsetInt|))) |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| (store (select (store (store (store (store .cse12 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| v_ArrVal_1103) |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| v_ArrVal_1092) .cse6 v_ArrVal_1120) .cse7 v_ArrVal_1095) |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt|) .cse9 |v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1|))) (.cse4 (let ((.cse5 (store .cse8 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| (store .cse10 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.offsetInt| |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt|)))) (store (store (store (store .cse5 |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| v_ArrVal_1108) .cse6 v_ArrVal_1090) .cse7 (store (select (store (store .cse5 |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| v_ArrVal_1084) .cse6 v_ArrVal_1109) .cse7) |v_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~last~1#1.offsetInt_1| |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt|)) |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| (store (select (store (store (store (store .cse8 |c_ULTIMATE.start_ULTIMATE.start_dll_circular_prepend_~head#1.baseInt| v_ArrVal_1106) |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt| (store (select .cse5 |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.offsetInt| .cse6)) .cse6 v_ArrVal_1112) .cse7 v_ArrVal_1088) |c_ULTIMATE.start_ULTIMATE.start_node_create_~temp~0#1.baseInt|) .cse9 .cse7))))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.offsetInt|)) (.cse1 (select (select .cse2 |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.baseInt|) |c_ULTIMATE.start_ULTIMATE.start_main_~#s~0#1.offsetInt|))) (or (not (<= 0 .cse0)) (not (= .cse1 (select (select .cse2 .cse3) .cse1))) (not (= .cse3 (select (select .cse4 .cse3) .cse1))))))))))) is different from false [2022-01-10 17:48:01,176 WARN L228 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 93 DAG size of output: 89 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-01-10 17:48:01,177 INFO L353 Elim1Store]: treesize reduction 8, result has 99.2 percent of original size [2022-01-10 17:48:01,237 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1325279686425 treesize of output 1272200097083