./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63900034700ff8018e29578512f73f88317ae4b603a38b2f2f558c77b57812d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:54:09,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:54:09,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:54:09,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:54:09,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:54:09,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:54:09,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:54:09,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:54:09,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:54:09,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:54:09,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:54:09,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:54:09,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:54:09,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:54:09,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:54:09,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:54:09,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:54:09,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:54:09,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:54:09,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:54:09,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:54:09,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:54:09,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:54:09,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:54:09,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:54:09,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:54:09,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:54:09,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:54:09,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:54:09,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:54:09,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:54:09,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:54:09,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:54:09,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:54:09,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:54:09,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:54:09,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:54:09,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:54:09,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:54:09,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:54:09,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:54:09,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 23:54:09,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:54:09,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:54:09,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:54:09,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:54:09,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:54:09,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:54:09,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:54:09,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:54:09,949 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:54:09,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:54:09,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:54:09,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 23:54:09,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:54:09,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:54:09,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:54:09,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:54:09,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:54:09,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:54:09,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:54:09,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:54:09,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:54:09,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:54:09,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:54:09,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:54:09,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:54:09,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:54:09,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:54:09,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:54:09,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 23:54:09,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 23:54:09,953 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:54:09,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:54:09,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:54:09,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:54:09,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63900034700ff8018e29578512f73f88317ae4b603a38b2f2f558c77b57812d [2021-12-15 23:54:10,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:54:10,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:54:10,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:54:10,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:54:10,140 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:54:10,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i [2021-12-15 23:54:10,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68aa4fa1/da5128d3c0294cdabc761347c80e7d1e/FLAG6afdec34d [2021-12-15 23:54:10,656 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:54:10,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i [2021-12-15 23:54:10,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68aa4fa1/da5128d3c0294cdabc761347c80e7d1e/FLAG6afdec34d [2021-12-15 23:54:11,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68aa4fa1/da5128d3c0294cdabc761347c80e7d1e [2021-12-15 23:54:11,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:54:11,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:54:11,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:54:11,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:54:11,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:54:11,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9d6b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11, skipping insertion in model container [2021-12-15 23:54:11,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:54:11,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:54:11,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i[22605,22618] [2021-12-15 23:54:11,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:54:11,454 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:54:11,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i[22605,22618] [2021-12-15 23:54:11,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:54:11,505 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:54:11,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11 WrapperNode [2021-12-15 23:54:11,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:54:11,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:54:11,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:54:11,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:54:11,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,552 INFO L137 Inliner]: procedures = 119, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 108 [2021-12-15 23:54:11,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:54:11,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:54:11,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:54:11,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:54:11,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:54:11,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:54:11,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:54:11,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:54:11,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (1/1) ... [2021-12-15 23:54:11,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:54:11,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:54:11,613 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) [2021-12-15 23:54:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 23:54:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 23:54:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 23:54:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:54:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 23:54:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 23:54:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:54:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 23:54:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:54:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:54:11,627 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 [2021-12-15 23:54:11,744 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:54:11,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:54:11,967 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:54:11,979 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:54:11,979 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-15 23:54:11,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:54:11 BoogieIcfgContainer [2021-12-15 23:54:11,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:54:11,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:54:11,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:54:11,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:54:11,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:54:11" (1/3) ... [2021-12-15 23:54:11,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f06c321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:54:11, skipping insertion in model container [2021-12-15 23:54:11,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:54:11" (2/3) ... [2021-12-15 23:54:11,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f06c321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:54:11, skipping insertion in model container [2021-12-15 23:54:11,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:54:11" (3/3) ... [2021-12-15 23:54:11,986 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-1.i [2021-12-15 23:54:11,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:54:11,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:54:12,020 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:54:12,026 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 [2021-12-15 23:54:12,026 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:54:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 25 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) [2021-12-15 23:54:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 23:54:12,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:12,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:12,050 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:12,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:12,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1041580535, now seen corresponding path program 1 times [2021-12-15 23:54:12,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:12,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048448542] [2021-12-15 23:54:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:12,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:12,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:12,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048448542] [2021-12-15 23:54:12,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048448542] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:54:12,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:54:12,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 23:54:12,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235516465] [2021-12-15 23:54:12,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:54:12,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 23:54:12,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:54:12,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 23:54:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:54:12,201 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 25 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-15 23:54:12,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:54:12,213 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2021-12-15 23:54:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 23:54:12,215 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-12-15 23:54:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:54:12,220 INFO L225 Difference]: With dead ends: 47 [2021-12-15 23:54:12,220 INFO L226 Difference]: Without dead ends: 19 [2021-12-15 23:54:12,222 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 [2021-12-15 23:54:12,225 INFO L933 BasicCegarLoop]: 31 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, 31 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 [2021-12-15 23:54:12,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:54:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-15 23:54:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-15 23:54:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 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) [2021-12-15 23:54:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-12-15 23:54:12,246 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 11 [2021-12-15 23:54:12,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:54:12,246 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-15 23:54:12,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-15 23:54:12,246 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-12-15 23:54:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 23:54:12,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:12,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:12,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 23:54:12,247 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1993200173, now seen corresponding path program 1 times [2021-12-15 23:54:12,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393541987] [2021-12-15 23:54:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:12,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:12,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:12,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393541987] [2021-12-15 23:54:12,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393541987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:54:12,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:54:12,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:54:12,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361530910] [2021-12-15 23:54:12,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:54:12,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:54:12,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:54:12,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:54:12,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:54:12,364 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-15 23:54:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:54:12,513 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2021-12-15 23:54:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 23:54:12,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2021-12-15 23:54:12,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:54:12,517 INFO L225 Difference]: With dead ends: 51 [2021-12-15 23:54:12,517 INFO L226 Difference]: Without dead ends: 49 [2021-12-15 23:54:12,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-15 23:54:12,519 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 36 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 23:54:12,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 63 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 23:54:12,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-12-15 23:54:12,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 29. [2021-12-15 23:54:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 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) [2021-12-15 23:54:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2021-12-15 23:54:12,525 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 13 [2021-12-15 23:54:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:54:12,525 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-12-15 23:54:12,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-15 23:54:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2021-12-15 23:54:12,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 23:54:12,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:12,526 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:12,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 23:54:12,527 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1593175992, now seen corresponding path program 1 times [2021-12-15 23:54:12,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:12,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604458750] [2021-12-15 23:54:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:12,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:12,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:12,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604458750] [2021-12-15 23:54:12,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604458750] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:54:12,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374512405] [2021-12-15 23:54:12,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:12,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 23:54:12,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:54:12,622 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) [2021-12-15 23:54:12,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 23:54:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:12,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 44 conjunts are in the unsatisfiable core [2021-12-15 23:54:12,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:54:12,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:12,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 17 [2021-12-15 23:54:12,745 INFO L388 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 6 treesize of output 5 [2021-12-15 23:54:12,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:12,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 17 [2021-12-15 23:54:12,809 INFO L388 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2021-12-15 23:54:12,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:12,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-15 23:54:12,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:12,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 21 treesize of output 23 [2021-12-15 23:54:12,822 INFO L388 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 8 treesize of output 7 [2021-12-15 23:54:12,829 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-12-15 23:54:12,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-12-15 23:54:12,958 INFO L354 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2021-12-15 23:54:12,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 35 [2021-12-15 23:54:12,975 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-12-15 23:54:12,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-12-15 23:54:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:12,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:54:13,039 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:13,040 INFO L388 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2021-12-15 23:54:13,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:13,044 INFO L388 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-12-15 23:54:13,051 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,071 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,097 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,124 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,147 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~head~0#1.base_10| Int) (v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int))) (or (not (= 0 (select |c_#valid| |v_ULTIMATE.start_main_~head~0#1.base_10|))) (and (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~head~0#1.base_10| v_arrayElimArr_3) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~head~0#1.base_10| v_arrayElimArr_2) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0)) (not (= (select v_arrayElimArr_3 0) |c_ULTIMATE.start_main_~head~0#1.base|)) (not (= (select v_arrayElimArr_2 0) |c_ULTIMATE.start_main_~head~0#1.offset|)))) is different from false [2021-12-15 23:54:13,162 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,187 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,224 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,237 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,272 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,294 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,330 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,343 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,373 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,393 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,423 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,437 INFO L388 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 6 treesize of output 4 [2021-12-15 23:54:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:13,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374512405] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 23:54:13,471 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 23:54:13,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-12-15 23:54:13,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469963481] [2021-12-15 23:54:13,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 23:54:13,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 23:54:13,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:54:13,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 23:54:13,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=88, Unknown=1, NotChecked=18, Total=132 [2021-12-15 23:54:13,474 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-12-15 23:54:13,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:54:13,727 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2021-12-15 23:54:13,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 23:54:13,727 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-15 23:54:13,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:54:13,728 INFO L225 Difference]: With dead ends: 69 [2021-12-15 23:54:13,728 INFO L226 Difference]: Without dead ends: 55 [2021-12-15 23:54:13,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=217, Unknown=1, NotChecked=30, Total=306 [2021-12-15 23:54:13,729 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 79 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 23:54:13,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 140 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 155 Invalid, 0 Unknown, 73 Unchecked, 0.1s Time] [2021-12-15 23:54:13,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-12-15 23:54:13,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 36. [2021-12-15 23:54:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 35 states have internal predecessors, (47), 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) [2021-12-15 23:54:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2021-12-15 23:54:13,733 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 15 [2021-12-15 23:54:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:54:13,733 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-12-15 23:54:13,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-12-15 23:54:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2021-12-15 23:54:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 23:54:13,734 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:13,734 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:13,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 23:54:13,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 23:54:13,947 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:13,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash 522680462, now seen corresponding path program 1 times [2021-12-15 23:54:13,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:13,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441784913] [2021-12-15 23:54:13,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:13,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:14,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:14,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441784913] [2021-12-15 23:54:14,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441784913] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:54:14,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224445065] [2021-12-15 23:54:14,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:14,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 23:54:14,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:54:14,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 23:54:14,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 23:54:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:14,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-15 23:54:14,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:54:14,142 INFO L388 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 6 treesize of output 5 [2021-12-15 23:54:14,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-15 23:54:14,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:14,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-12-15 23:54:14,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:14,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-15 23:54:14,206 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-15 23:54:14,206 INFO L388 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 [2021-12-15 23:54:14,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 23:54:14,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 23:54:14,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:14,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-15 23:54:14,275 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-12-15 23:54:14,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-12-15 23:54:14,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-12-15 23:54:14,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-15 23:54:14,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-15 23:54:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:14,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:54:14,393 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~head~0#1.base_13| Int) (v_ArrVal_220 (Array Int Int))) (or (not (= 0 (select |c_#valid| |v_ULTIMATE.start_main_~head~0#1.base_13|))) (not (= 1 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~head~0#1.base_13| v_ArrVal_220) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4)))))) is different from false [2021-12-15 23:54:14,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-12-15 23:54:14,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224445065] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 23:54:14,534 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 23:54:14,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2021-12-15 23:54:14,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370859695] [2021-12-15 23:54:14,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 23:54:14,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-15 23:54:14,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:54:14,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-15 23:54:14,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=173, Unknown=1, NotChecked=26, Total=240 [2021-12-15 23:54:14,535 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:54:14,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:54:14,926 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2021-12-15 23:54:14,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 23:54:14,927 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-15 23:54:14,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:54:14,929 INFO L225 Difference]: With dead ends: 72 [2021-12-15 23:54:14,929 INFO L226 Difference]: Without dead ends: 70 [2021-12-15 23:54:14,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=397, Unknown=1, NotChecked=42, Total=552 [2021-12-15 23:54:14,932 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 82 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 23:54:14,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 136 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 134 Invalid, 0 Unknown, 52 Unchecked, 0.1s Time] [2021-12-15 23:54:14,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-12-15 23:54:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 42. [2021-12-15 23:54:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 41 states have internal predecessors, (54), 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) [2021-12-15 23:54:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2021-12-15 23:54:14,949 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 15 [2021-12-15 23:54:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:54:14,950 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2021-12-15 23:54:14,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:54:14,950 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2021-12-15 23:54:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 23:54:14,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:14,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:14,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 23:54:15,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-15 23:54:15,166 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:15,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:15,167 INFO L85 PathProgramCache]: Analyzing trace with hash 195432482, now seen corresponding path program 1 times [2021-12-15 23:54:15,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:15,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411953794] [2021-12-15 23:54:15,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:15,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:15,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:15,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411953794] [2021-12-15 23:54:15,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411953794] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:54:15,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:54:15,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 23:54:15,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599411916] [2021-12-15 23:54:15,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:54:15,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 23:54:15,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:54:15,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 23:54:15,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:54:15,271 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-12-15 23:54:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:54:15,367 INFO L93 Difference]: Finished difference Result 82 states and 103 transitions. [2021-12-15 23:54:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 23:54:15,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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 [2021-12-15 23:54:15,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:54:15,368 INFO L225 Difference]: With dead ends: 82 [2021-12-15 23:54:15,368 INFO L226 Difference]: Without dead ends: 59 [2021-12-15 23:54:15,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-15 23:54:15,369 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 23:54:15,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 76 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 23:54:15,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-12-15 23:54:15,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 40. [2021-12-15 23:54:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 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) [2021-12-15 23:54:15,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2021-12-15 23:54:15,372 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 16 [2021-12-15 23:54:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:54:15,372 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2021-12-15 23:54:15,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-12-15 23:54:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2021-12-15 23:54:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-15 23:54:15,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:15,373 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:15,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 23:54:15,373 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:15,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:15,373 INFO L85 PathProgramCache]: Analyzing trace with hash -758068131, now seen corresponding path program 2 times [2021-12-15 23:54:15,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:15,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148056453] [2021-12-15 23:54:15,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:15,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:15,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-15 23:54:15,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:15,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148056453] [2021-12-15 23:54:15,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148056453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:54:15,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:54:15,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 23:54:15,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217911084] [2021-12-15 23:54:15,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:54:15,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 23:54:15,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:54:15,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 23:54:15,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 23:54:15,427 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-12-15 23:54:15,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:54:15,478 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2021-12-15 23:54:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 23:54:15,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 17 [2021-12-15 23:54:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:54:15,479 INFO L225 Difference]: With dead ends: 55 [2021-12-15 23:54:15,480 INFO L226 Difference]: Without dead ends: 42 [2021-12-15 23:54:15,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:54:15,481 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 29 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:54:15,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 59 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:54:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-15 23:54:15,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2021-12-15 23:54:15,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 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) [2021-12-15 23:54:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-12-15 23:54:15,489 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 17 [2021-12-15 23:54:15,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:54:15,489 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-12-15 23:54:15,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-12-15 23:54:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-12-15 23:54:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 23:54:15,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:15,492 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:15,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 23:54:15,492 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:15,493 INFO L85 PathProgramCache]: Analyzing trace with hash 335182407, now seen corresponding path program 1 times [2021-12-15 23:54:15,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:15,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656207491] [2021-12-15 23:54:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:15,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:15,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:15,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656207491] [2021-12-15 23:54:15,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656207491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:54:15,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:54:15,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 23:54:15,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473436623] [2021-12-15 23:54:15,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:54:15,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 23:54:15,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:54:15,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 23:54:15,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 23:54:15,560 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:54:15,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:54:15,624 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2021-12-15 23:54:15,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 23:54:15,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-15 23:54:15,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:54:15,625 INFO L225 Difference]: With dead ends: 59 [2021-12-15 23:54:15,625 INFO L226 Difference]: Without dead ends: 43 [2021-12-15 23:54:15,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:54:15,626 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:54:15,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 57 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:54:15,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-15 23:54:15,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2021-12-15 23:54:15,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 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) [2021-12-15 23:54:15,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2021-12-15 23:54:15,629 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 18 [2021-12-15 23:54:15,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:54:15,629 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2021-12-15 23:54:15,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:54:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2021-12-15 23:54:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 23:54:15,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:54:15,630 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:54:15,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 23:54:15,630 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:54:15,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:54:15,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1935253853, now seen corresponding path program 1 times [2021-12-15 23:54:15,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:54:15,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777274350] [2021-12-15 23:54:15,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:15,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:54:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:15,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:54:15,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777274350] [2021-12-15 23:54:15,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777274350] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:54:15,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411728485] [2021-12-15 23:54:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:54:15,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 23:54:15,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:54:15,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 23:54:15,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 23:54:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:54:15,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 68 conjunts are in the unsatisfiable core [2021-12-15 23:54:15,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:54:15,895 INFO L388 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 6 treesize of output 5 [2021-12-15 23:54:15,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-12-15 23:54:15,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-12-15 23:54:15,963 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-15 23:54:15,963 INFO L388 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 62 treesize of output 57 [2021-12-15 23:54:15,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:15,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-15 23:54:15,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 23 [2021-12-15 23:54:15,987 INFO L354 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2021-12-15 23:54:15,987 INFO L388 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 25 treesize of output 29 [2021-12-15 23:54:16,086 INFO L388 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2021-12-15 23:54:16,092 INFO L388 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2021-12-15 23:54:16,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:16,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 18 treesize of output 20 [2021-12-15 23:54:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:16,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 49 [2021-12-15 23:54:16,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:54:16,112 INFO L354 Elim1Store]: treesize reduction 4, result has 80.0 percent of original size [2021-12-15 23:54:16,112 INFO L388 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 1 case distinctions, treesize of input 32 treesize of output 26 [2021-12-15 23:54:16,115 INFO L388 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 26 treesize of output 28 [2021-12-15 23:54:16,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-15 23:54:16,322 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-15 23:54:16,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 48 [2021-12-15 23:54:16,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 16 [2021-12-15 23:54:16,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-15 23:54:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:54:16,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:54:16,394 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:16,394 INFO L388 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2021-12-15 23:54:16,398 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:16,399 INFO L388 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2021-12-15 23:54:16,439 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_10 (Array Int Int)) (|v_ULTIMATE.start_main_~head~0#1.base_16| Int) (v_ArrVal_419 (Array Int Int)) (v_arrayElimArr_9 (Array Int Int))) (or (not (= (select v_arrayElimArr_10 0) |c_ULTIMATE.start_main_~head~0#1.offset|)) (not (= 0 (select |c_#valid| |v_ULTIMATE.start_main_~head~0#1.base_16|))) (not (= 1 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~head~0#1.base_16| v_ArrVal_419) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~head~0#1.base_16| v_arrayElimArr_9) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~head~0#1.base_16| v_arrayElimArr_10) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4)))) (not (= (select v_arrayElimArr_9 0) |c_ULTIMATE.start_main_~head~0#1.base|)))) is different from false [2021-12-15 23:54:16,591 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:16,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 61 [2021-12-15 23:54:16,601 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:16,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 288 treesize of output 231 [2021-12-15 23:54:16,608 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:16,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 204 treesize of output 181 [2021-12-15 23:54:16,615 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:16,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 145 [2021-12-15 23:54:16,630 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:16,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 863 treesize of output 838 [2021-12-15 23:54:17,050 INFO L354 Elim1Store]: treesize reduction 420, result has 42.9 percent of original size [2021-12-15 23:54:17,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 1455 treesize of output 1478 [2021-12-15 23:54:17,102 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:17,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1274 treesize of output 1198 [2021-12-15 23:54:17,150 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:17,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1208 treesize of output 1164 [2021-12-15 23:54:17,198 INFO L388 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 1164 treesize of output 1130 [2021-12-15 23:54:17,220 INFO L388 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 1146 treesize of output 1096 [2021-12-15 23:54:17,257 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:54:17,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1014 treesize of output 923