./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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/uthash-2.0.2/uthash_SFH_test6-1.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 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 06:43:56,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 06:43:56,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 06:43:56,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 06:43:56,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 06:43:56,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 06:43:56,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 06:43:56,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 06:43:56,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 06:43:56,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 06:43:56,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 06:43:56,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 06:43:56,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 06:43:56,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 06:43:56,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 06:43:56,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 06:43:56,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 06:43:56,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 06:43:56,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 06:43:56,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 06:43:56,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 06:43:56,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 06:43:56,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 06:43:56,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 06:43:56,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 06:43:56,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 06:43:56,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 06:43:56,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 06:43:56,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 06:43:56,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 06:43:56,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 06:43:56,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 06:43:56,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 06:43:56,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 06:43:56,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 06:43:56,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 06:43:56,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 06:43:56,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 06:43:56,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 06:43:56,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 06:43:56,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 06:43:56,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 06:43:56,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 06:43:56,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 06:43:56,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 06:43:56,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 06:43:56,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 06:43:56,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 06:43:56,227 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 06:43:56,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 06:43:56,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 06:43:56,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 06:43:56,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 06:43:56,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 06:43:56,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 06:43:56,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 06:43:56,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 06:43:56,229 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 06:43:56,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 06:43:56,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 06:43:56,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 06:43:56,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 06:43:56,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 06:43:56,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 06:43:56,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 06:43:56,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 06:43:56,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 06:43:56,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 06:43:56,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 06:43:56,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 06:43:56,231 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 06:43:56,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 06:43:56,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 06:43:56,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 06:43:56,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2021-11-23 06:43:56,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 06:43:56,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 06:43:56,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 06:43:56,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 06:43:56,449 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 06:43:56,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-23 06:43:56,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42814402/472b0a12211b49ea95cdd5faf163aaf3/FLAG86eecdbc5 [2021-11-23 06:43:56,995 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 06:43:56,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-23 06:43:57,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42814402/472b0a12211b49ea95cdd5faf163aaf3/FLAG86eecdbc5 [2021-11-23 06:43:57,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42814402/472b0a12211b49ea95cdd5faf163aaf3 [2021-11-23 06:43:57,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 06:43:57,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 06:43:57,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 06:43:57,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 06:43:57,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 06:43:57,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40acf08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57, skipping insertion in model container [2021-11-23 06:43:57,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 06:43:57,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 06:43:57,479 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/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-23 06:43:57,493 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/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-23 06:43:57,574 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/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-23 06:43:57,575 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/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-23 06:43:57,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 06:43:57,592 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 06:43:57,621 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/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-23 06:43:57,630 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/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-23 06:43:57,699 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/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-23 06:43:57,700 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/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-23 06:43:57,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 06:43:57,766 INFO L208 MainTranslator]: Completed translation [2021-11-23 06:43:57,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57 WrapperNode [2021-11-23 06:43:57,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 06:43:57,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 06:43:57,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 06:43:57,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 06:43:57,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,896 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 1159 [2021-11-23 06:43:57,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 06:43:57,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 06:43:57,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 06:43:57,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 06:43:57,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:57,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:58,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:58,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:58,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 06:43:58,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 06:43:58,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 06:43:58,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 06:43:58,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (1/1) ... [2021-11-23 06:43:58,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 06:43:58,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:43:58,062 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) [2021-11-23 06:43:58,065 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 [2021-11-23 06:43:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 06:43:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 06:43:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 06:43:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 06:43:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 06:43:58,299 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 06:43:58,300 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 06:43:59,013 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 06:43:59,021 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 06:43:59,021 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-23 06:43:59,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:59 BoogieIcfgContainer [2021-11-23 06:43:59,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 06:43:59,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 06:43:59,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 06:43:59,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 06:43:59,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:43:57" (1/3) ... [2021-11-23 06:43:59,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e84ed98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:43:59, skipping insertion in model container [2021-11-23 06:43:59,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:57" (2/3) ... [2021-11-23 06:43:59,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e84ed98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:43:59, skipping insertion in model container [2021-11-23 06:43:59,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:59" (3/3) ... [2021-11-23 06:43:59,030 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2021-11-23 06:43:59,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 06:43:59,034 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-23 06:43:59,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 06:43:59,071 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 [2021-11-23 06:43:59,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-23 06:43:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 240 states have internal predecessors, (378), 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) [2021-11-23 06:43:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 06:43:59,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:43:59,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:43:59,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:43:59,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:43:59,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1119402824, now seen corresponding path program 1 times [2021-11-23 06:43:59,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:43:59,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792617123] [2021-11-23 06:43:59,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:43:59,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:43:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:43:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:43:59,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:43:59,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792617123] [2021-11-23 06:43:59,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792617123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:43:59,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:43:59,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 06:43:59,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869625777] [2021-11-23 06:43:59,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:43:59,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 06:43:59,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:43:59,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 06:43:59,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 06:43:59,252 INFO L87 Difference]: Start difference. First operand has 241 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 240 states have internal predecessors, (378), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 06:43:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:43:59,286 INFO L93 Difference]: Finished difference Result 474 states and 747 transitions. [2021-11-23 06:43:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 06:43:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-23 06:43:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:43:59,294 INFO L225 Difference]: With dead ends: 474 [2021-11-23 06:43:59,295 INFO L226 Difference]: Without dead ends: 231 [2021-11-23 06:43:59,297 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 [2021-11-23 06:43:59,299 INFO L933 BasicCegarLoop]: 293 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, 293 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 [2021-11-23 06:43:59,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:43:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-23 06:43:59,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-11-23 06:43:59,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.3136363636363637) internal successors, (289), 230 states have internal predecessors, (289), 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) [2021-11-23 06:43:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 289 transitions. [2021-11-23 06:43:59,330 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 289 transitions. Word has length 8 [2021-11-23 06:43:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:43:59,331 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 289 transitions. [2021-11-23 06:43:59,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 06:43:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 289 transitions. [2021-11-23 06:43:59,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 06:43:59,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:43:59,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:43:59,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 06:43:59,332 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:43:59,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:43:59,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1348757205, now seen corresponding path program 1 times [2021-11-23 06:43:59,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:43:59,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802991965] [2021-11-23 06:43:59,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:43:59,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:43:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:43:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:43:59,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:43:59,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802991965] [2021-11-23 06:43:59,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802991965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:43:59,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:43:59,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:43:59,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615116095] [2021-11-23 06:43:59,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:43:59,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:43:59,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:43:59,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:43:59,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:43:59,404 INFO L87 Difference]: Start difference. First operand 231 states and 289 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-23 06:43:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:43:59,685 INFO L93 Difference]: Finished difference Result 485 states and 607 transitions. [2021-11-23 06:43:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 06:43:59,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-11-23 06:43:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:43:59,688 INFO L225 Difference]: With dead ends: 485 [2021-11-23 06:43:59,688 INFO L226 Difference]: Without dead ends: 374 [2021-11-23 06:43:59,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:43:59,689 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 171 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 06:43:59,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 722 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 06:43:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-23 06:43:59,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 233. [2021-11-23 06:43:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 222 states have (on average 1.3108108108108107) internal successors, (291), 232 states have internal predecessors, (291), 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) [2021-11-23 06:43:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 291 transitions. [2021-11-23 06:43:59,699 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 291 transitions. Word has length 10 [2021-11-23 06:43:59,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:43:59,699 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 291 transitions. [2021-11-23 06:43:59,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-23 06:43:59,700 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 291 transitions. [2021-11-23 06:43:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 06:43:59,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:43:59,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:43:59,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 06:43:59,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:43:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:43:59,702 INFO L85 PathProgramCache]: Analyzing trace with hash -602340381, now seen corresponding path program 1 times [2021-11-23 06:43:59,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:43:59,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196699953] [2021-11-23 06:43:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:43:59,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:43:59,722 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:43:59,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786637857] [2021-11-23 06:43:59,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:43:59,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:43:59,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:43:59,724 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) [2021-11-23 06:43:59,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 06:43:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:43:59,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:43:59,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:43:59,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:43:59,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:43:59,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:43:59,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196699953] [2021-11-23 06:43:59,935 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:43:59,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786637857] [2021-11-23 06:43:59,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786637857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:43:59,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:43:59,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:43:59,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965966803] [2021-11-23 06:43:59,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:43:59,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:43:59,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:43:59,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:43:59,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:43:59,938 INFO L87 Difference]: Start difference. First operand 233 states and 291 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 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) [2021-11-23 06:43:59,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:43:59,983 INFO L93 Difference]: Finished difference Result 483 states and 609 transitions. [2021-11-23 06:43:59,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:43:59,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 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) Word has length 44 [2021-11-23 06:43:59,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:43:59,985 INFO L225 Difference]: With dead ends: 483 [2021-11-23 06:43:59,985 INFO L226 Difference]: Without dead ends: 254 [2021-11-23 06:43:59,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:43:59,986 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 9 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:43:59,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 523 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:43:59,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-23 06:43:59,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2021-11-23 06:43:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 242 states have (on average 1.2851239669421488) internal successors, (311), 252 states have internal predecessors, (311), 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) [2021-11-23 06:43:59,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 311 transitions. [2021-11-23 06:43:59,993 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 311 transitions. Word has length 44 [2021-11-23 06:43:59,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:43:59,994 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 311 transitions. [2021-11-23 06:43:59,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 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) [2021-11-23 06:43:59,994 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 311 transitions. [2021-11-23 06:43:59,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 06:43:59,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:43:59,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:00,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:00,203 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 [2021-11-23 06:44:00,204 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:00,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:00,204 INFO L85 PathProgramCache]: Analyzing trace with hash -821195099, now seen corresponding path program 1 times [2021-11-23 06:44:00,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:00,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651036996] [2021-11-23 06:44:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:00,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:00,230 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:00,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586742619] [2021-11-23 06:44:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:00,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:00,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:00,235 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) [2021-11-23 06:44:00,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 06:44:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:00,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:44:00,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:00,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:44:00,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:00,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651036996] [2021-11-23 06:44:00,476 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:00,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586742619] [2021-11-23 06:44:00,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586742619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:44:00,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:44:00,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:44:00,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797309288] [2021-11-23 06:44:00,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:44:00,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:44:00,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:00,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:44:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:44:00,479 INFO L87 Difference]: Start difference. First operand 253 states and 311 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2021-11-23 06:44:00,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:00,534 INFO L93 Difference]: Finished difference Result 495 states and 611 transitions. [2021-11-23 06:44:00,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 06:44:00,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) Word has length 44 [2021-11-23 06:44:00,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:00,535 INFO L225 Difference]: With dead ends: 495 [2021-11-23 06:44:00,535 INFO L226 Difference]: Without dead ends: 246 [2021-11-23 06:44:00,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:44:00,538 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 277 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:00,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 537 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:44:00,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-23 06:44:00,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 239. [2021-11-23 06:44:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 228 states have (on average 1.2719298245614035) internal successors, (290), 238 states have internal predecessors, (290), 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) [2021-11-23 06:44:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 290 transitions. [2021-11-23 06:44:00,554 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 290 transitions. Word has length 44 [2021-11-23 06:44:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:00,554 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 290 transitions. [2021-11-23 06:44:00,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2021-11-23 06:44:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 290 transitions. [2021-11-23 06:44:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 06:44:00,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:00,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:00,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:00,773 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 [2021-11-23 06:44:00,773 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:00,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:00,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1704043945, now seen corresponding path program 1 times [2021-11-23 06:44:00,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:00,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091370473] [2021-11-23 06:44:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:00,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:00,799 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:00,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034978246] [2021-11-23 06:44:00,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:00,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:00,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:00,807 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) [2021-11-23 06:44:00,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 06:44:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:00,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 06:44:00,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:01,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:44:01,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:01,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091370473] [2021-11-23 06:44:01,038 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:01,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034978246] [2021-11-23 06:44:01,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034978246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:44:01,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:44:01,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:44:01,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416282149] [2021-11-23 06:44:01,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:44:01,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:44:01,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:01,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:44:01,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:44:01,040 INFO L87 Difference]: Start difference. First operand 239 states and 290 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2021-11-23 06:44:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:01,098 INFO L93 Difference]: Finished difference Result 451 states and 554 transitions. [2021-11-23 06:44:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 06:44:01,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) Word has length 44 [2021-11-23 06:44:01,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:01,101 INFO L225 Difference]: With dead ends: 451 [2021-11-23 06:44:01,101 INFO L226 Difference]: Without dead ends: 449 [2021-11-23 06:44:01,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:44:01,102 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 266 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:01,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 1301 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:44:01,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-23 06:44:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 237. [2021-11-23 06:44:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 227 states have (on average 1.2687224669603525) internal successors, (288), 236 states have internal predecessors, (288), 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) [2021-11-23 06:44:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 288 transitions. [2021-11-23 06:44:01,108 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 288 transitions. Word has length 44 [2021-11-23 06:44:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:01,108 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 288 transitions. [2021-11-23 06:44:01,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2021-11-23 06:44:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 288 transitions. [2021-11-23 06:44:01,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 06:44:01,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:01,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:01,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:01,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:01,329 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:01,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:01,334 INFO L85 PathProgramCache]: Analyzing trace with hash -432623516, now seen corresponding path program 1 times [2021-11-23 06:44:01,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:01,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022058310] [2021-11-23 06:44:01,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:01,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:01,357 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:01,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048118417] [2021-11-23 06:44:01,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:01,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:01,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:01,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:01,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 06:44:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:01,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 06:44:01,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:01,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:44:01,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:01,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022058310] [2021-11-23 06:44:01,628 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:01,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048118417] [2021-11-23 06:44:01,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048118417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:44:01,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:44:01,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:44:01,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438540892] [2021-11-23 06:44:01,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:44:01,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 06:44:01,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:01,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 06:44:01,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:44:01,629 INFO L87 Difference]: Start difference. First operand 237 states and 288 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:44:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:01,716 INFO L93 Difference]: Finished difference Result 950 states and 1165 transitions. [2021-11-23 06:44:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 06:44:01,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-23 06:44:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:01,719 INFO L225 Difference]: With dead ends: 950 [2021-11-23 06:44:01,719 INFO L226 Difference]: Without dead ends: 717 [2021-11-23 06:44:01,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:44:01,720 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 894 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:01,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 1077 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 06:44:01,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-11-23 06:44:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 328. [2021-11-23 06:44:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 319 states have (on average 1.2476489028213167) internal successors, (398), 327 states have internal predecessors, (398), 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) [2021-11-23 06:44:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 398 transitions. [2021-11-23 06:44:01,729 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 398 transitions. Word has length 51 [2021-11-23 06:44:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:01,729 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 398 transitions. [2021-11-23 06:44:01,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:44:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 398 transitions. [2021-11-23 06:44:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 06:44:01,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:01,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:01,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 06:44:01,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:01,948 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:01,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:01,948 INFO L85 PathProgramCache]: Analyzing trace with hash 586889260, now seen corresponding path program 1 times [2021-11-23 06:44:01,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:01,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528604960] [2021-11-23 06:44:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:01,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:02,008 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:02,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982638168] [2021-11-23 06:44:02,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:02,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:02,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:02,030 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:02,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 06:44:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:02,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 06:44:02,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:02,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:44:02,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:02,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528604960] [2021-11-23 06:44:02,596 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:02,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982638168] [2021-11-23 06:44:02,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982638168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:44:02,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:44:02,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:44:02,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604582580] [2021-11-23 06:44:02,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:44:02,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:44:02,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:02,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:44:02,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:44:02,598 INFO L87 Difference]: Start difference. First operand 328 states and 398 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2021-11-23 06:44:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:02,651 INFO L93 Difference]: Finished difference Result 692 states and 838 transitions. [2021-11-23 06:44:02,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:44:02,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) Word has length 54 [2021-11-23 06:44:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:02,653 INFO L225 Difference]: With dead ends: 692 [2021-11-23 06:44:02,653 INFO L226 Difference]: Without dead ends: 368 [2021-11-23 06:44:02,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:44:02,654 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 139 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:02,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 551 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:44:02,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-11-23 06:44:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 339. [2021-11-23 06:44:02,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 331 states have (on average 1.2537764350453173) internal successors, (415), 338 states have internal predecessors, (415), 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) [2021-11-23 06:44:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 415 transitions. [2021-11-23 06:44:02,661 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 415 transitions. Word has length 54 [2021-11-23 06:44:02,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:02,661 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 415 transitions. [2021-11-23 06:44:02,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2021-11-23 06:44:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 415 transitions. [2021-11-23 06:44:02,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 06:44:02,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:02,662 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:02,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:02,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:02,883 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:02,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash -716836992, now seen corresponding path program 1 times [2021-11-23 06:44:02,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204867411] [2021-11-23 06:44:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:02,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:02,917 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:02,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969888137] [2021-11-23 06:44:02,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:02,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:02,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:02,919 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:02,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 06:44:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:03,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 06:44:03,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:03,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:44:03,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:03,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204867411] [2021-11-23 06:44:03,372 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:03,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969888137] [2021-11-23 06:44:03,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969888137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:44:03,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:44:03,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:44:03,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550241444] [2021-11-23 06:44:03,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:44:03,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:44:03,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:03,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:44:03,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:44:03,374 INFO L87 Difference]: Start difference. First operand 339 states and 415 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-23 06:44:03,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:03,542 INFO L93 Difference]: Finished difference Result 631 states and 778 transitions. [2021-11-23 06:44:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 06:44:03,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-23 06:44:03,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:03,543 INFO L225 Difference]: With dead ends: 631 [2021-11-23 06:44:03,543 INFO L226 Difference]: Without dead ends: 345 [2021-11-23 06:44:03,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:44:03,544 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 17 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:03,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 780 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 06:44:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-11-23 06:44:03,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 339. [2021-11-23 06:44:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 331 states have (on average 1.2507552870090635) internal successors, (414), 338 states have internal predecessors, (414), 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) [2021-11-23 06:44:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 414 transitions. [2021-11-23 06:44:03,550 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 414 transitions. Word has length 78 [2021-11-23 06:44:03,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:03,550 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 414 transitions. [2021-11-23 06:44:03,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-23 06:44:03,550 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 414 transitions. [2021-11-23 06:44:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 06:44:03,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:03,551 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:03,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:03,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:03,770 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:03,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1875245303, now seen corresponding path program 1 times [2021-11-23 06:44:03,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:03,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714718505] [2021-11-23 06:44:03,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:03,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:03,821 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:03,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633536654] [2021-11-23 06:44:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:03,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:03,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:03,822 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:03,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 06:44:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:04,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 06:44:04,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:04,217 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 15 treesize of output 11 [2021-11-23 06:44:04,225 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 [2021-11-23 06:44:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 06:44:04,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:44:04,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:04,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714718505] [2021-11-23 06:44:04,232 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:04,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633536654] [2021-11-23 06:44:04,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633536654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:44:04,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:44:04,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:44:04,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391795122] [2021-11-23 06:44:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:44:04,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:44:04,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:44:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:44:04,234 INFO L87 Difference]: Start difference. First operand 339 states and 414 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:44:04,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:04,429 INFO L93 Difference]: Finished difference Result 462 states and 569 transitions. [2021-11-23 06:44:04,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 06:44:04,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-23 06:44:04,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:04,431 INFO L225 Difference]: With dead ends: 462 [2021-11-23 06:44:04,431 INFO L226 Difference]: Without dead ends: 446 [2021-11-23 06:44:04,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:44:04,432 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 115 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:04,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 710 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 06:44:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-23 06:44:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 341. [2021-11-23 06:44:04,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 333 states have (on average 1.2492492492492493) internal successors, (416), 340 states have internal predecessors, (416), 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) [2021-11-23 06:44:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 416 transitions. [2021-11-23 06:44:04,439 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 416 transitions. Word has length 80 [2021-11-23 06:44:04,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:04,439 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 416 transitions. [2021-11-23 06:44:04,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:44:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 416 transitions. [2021-11-23 06:44:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-23 06:44:04,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:04,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:04,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:04,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:04,659 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:04,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:04,660 INFO L85 PathProgramCache]: Analyzing trace with hash 423400126, now seen corresponding path program 1 times [2021-11-23 06:44:04,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:04,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44226603] [2021-11-23 06:44:04,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:04,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:04,688 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:04,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349679757] [2021-11-23 06:44:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:04,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:04,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:04,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:04,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 06:44:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:05,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 06:44:05,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:05,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:44:05,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:05,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44226603] [2021-11-23 06:44:05,220 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:05,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349679757] [2021-11-23 06:44:05,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349679757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:44:05,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:44:05,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 06:44:05,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379642427] [2021-11-23 06:44:05,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:44:05,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 06:44:05,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:05,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 06:44:05,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:44:05,222 INFO L87 Difference]: Start difference. First operand 341 states and 416 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:44:05,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:05,279 INFO L93 Difference]: Finished difference Result 630 states and 776 transitions. [2021-11-23 06:44:05,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 06:44:05,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-23 06:44:05,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:05,281 INFO L225 Difference]: With dead ends: 630 [2021-11-23 06:44:05,281 INFO L226 Difference]: Without dead ends: 342 [2021-11-23 06:44:05,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 06:44:05,282 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 266 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:05,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 971 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:44:05,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-23 06:44:05,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-23 06:44:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 334 states have (on average 1.248502994011976) internal successors, (417), 341 states have internal predecessors, (417), 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) [2021-11-23 06:44:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 417 transitions. [2021-11-23 06:44:05,289 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 417 transitions. Word has length 82 [2021-11-23 06:44:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:05,289 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 417 transitions. [2021-11-23 06:44:05,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:44:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 417 transitions. [2021-11-23 06:44:05,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-23 06:44:05,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:05,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:05,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:05,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 06:44:05,511 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:05,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:05,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2146540935, now seen corresponding path program 1 times [2021-11-23 06:44:05,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:05,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586033073] [2021-11-23 06:44:05,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:05,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:05,551 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:05,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087593163] [2021-11-23 06:44:05,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:05,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:05,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:05,553 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:05,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 06:44:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:06,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 06:44:06,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:06,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 06:44:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:44:06,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:06,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586033073] [2021-11-23 06:44:06,348 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:06,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087593163] [2021-11-23 06:44:06,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087593163] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 06:44:06,349 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 06:44:06,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2021-11-23 06:44:06,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775777805] [2021-11-23 06:44:06,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 06:44:06,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 06:44:06,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:06,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 06:44:06,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 06:44:06,351 INFO L87 Difference]: Start difference. First operand 342 states and 417 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2021-11-23 06:44:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:06,518 INFO L93 Difference]: Finished difference Result 636 states and 786 transitions. [2021-11-23 06:44:06,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 06:44:06,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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 83 [2021-11-23 06:44:06,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:06,519 INFO L225 Difference]: With dead ends: 636 [2021-11-23 06:44:06,520 INFO L226 Difference]: Without dead ends: 347 [2021-11-23 06:44:06,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-23 06:44:06,521 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 266 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:06,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 1274 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 06:44:06,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-11-23 06:44:06,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2021-11-23 06:44:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 339 states have (on average 1.2448377581120944) internal successors, (422), 346 states have internal predecessors, (422), 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) [2021-11-23 06:44:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 422 transitions. [2021-11-23 06:44:06,528 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 422 transitions. Word has length 83 [2021-11-23 06:44:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:06,528 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 422 transitions. [2021-11-23 06:44:06,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 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) [2021-11-23 06:44:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 422 transitions. [2021-11-23 06:44:06,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-23 06:44:06,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:06,529 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:06,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-23 06:44:06,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:06,743 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:06,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1197416930, now seen corresponding path program 1 times [2021-11-23 06:44:06,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:06,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934732142] [2021-11-23 06:44:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:06,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:06,778 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:06,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586289730] [2021-11-23 06:44:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:06,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:06,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:06,779 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:06,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 06:44:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:44:07,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 06:44:07,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:44:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 06:44:07,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 06:44:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 06:44:07,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:44:07,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934732142] [2021-11-23 06:44:07,524 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:44:07,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586289730] [2021-11-23 06:44:07,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586289730] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 06:44:07,524 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 06:44:07,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2021-11-23 06:44:07,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367943954] [2021-11-23 06:44:07,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 06:44:07,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 06:44:07,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:44:07,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 06:44:07,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-23 06:44:07,525 INFO L87 Difference]: Start difference. First operand 347 states and 422 transitions. Second operand has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 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) [2021-11-23 06:44:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:44:08,540 INFO L93 Difference]: Finished difference Result 687 states and 846 transitions. [2021-11-23 06:44:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-23 06:44:08,541 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 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 88 [2021-11-23 06:44:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:44:08,542 INFO L225 Difference]: With dead ends: 687 [2021-11-23 06:44:08,542 INFO L226 Difference]: Without dead ends: 350 [2021-11-23 06:44:08,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=317, Invalid=739, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 06:44:08,543 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 525 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 06:44:08,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1957 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 06:44:08,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-23 06:44:08,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2021-11-23 06:44:08,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 342 states have (on average 1.236842105263158) internal successors, (423), 349 states have internal predecessors, (423), 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) [2021-11-23 06:44:08,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 423 transitions. [2021-11-23 06:44:08,550 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 423 transitions. Word has length 88 [2021-11-23 06:44:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:44:08,550 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 423 transitions. [2021-11-23 06:44:08,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 15 states have internal predecessors, (98), 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) [2021-11-23 06:44:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 423 transitions. [2021-11-23 06:44:08,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 06:44:08,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:44:08,551 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:44:08,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 06:44:08,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 06:44:08,771 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-23 06:44:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:44:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1257931161, now seen corresponding path program 2 times [2021-11-23 06:44:08,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:44:08,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654860467] [2021-11-23 06:44:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:44:08,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:44:08,805 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:44:08,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133602848] [2021-11-23 06:44:08,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 06:44:08,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:44:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:44:08,806 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:44:08,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 06:53:09,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 06:53:09,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 06:53:09,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 297 conjunts are in the unsatisfiable core [2021-11-23 06:53:09,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:53:09,942 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 06:53:09,943 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 [2021-11-23 06:53:09,973 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 06:53:09,973 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 [2021-11-23 06:53:10,755 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 06:53:10,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-11-23 06:53:10,827 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 13 treesize of output 9 [2021-11-23 06:53:10,837 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 30 treesize of output 26 [2021-11-23 06:53:11,000 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 06:53:11,001 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 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-23 06:53:11,013 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 7 treesize of output 3 [2021-11-23 06:53:11,034 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,035 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,090 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 06:53:11,091 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 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-23 06:53:11,111 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 7 treesize of output 3 [2021-11-23 06:53:11,125 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,126 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,175 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 06:53:11,176 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 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-23 06:53:11,183 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 7 treesize of output 3 [2021-11-23 06:53:11,202 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,202 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,250 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 06:53:11,251 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 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-23 06:53:11,261 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 7 treesize of output 3 [2021-11-23 06:53:11,282 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,283 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,332 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,332 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 06:53:11,352 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 16 treesize of output 18 [2021-11-23 06:53:11,420 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 06:53:11,420 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 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-23 06:53:11,426 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 7 treesize of output 3 [2021-11-23 06:53:11,446 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,446 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,484 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 06:53:11,486 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 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-23 06:53:11,494 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 7 treesize of output 3 [2021-11-23 06:53:11,507 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,508 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,546 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,547 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 06:53:11,561 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 16 treesize of output 18 [2021-11-23 06:53:11,598 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 06:53:11,599 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 1 case distinctions, treesize of input 16 treesize of output 22 [2021-11-23 06:53:11,606 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 7 treesize of output 3 [2021-11-23 06:53:11,623 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,624 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 1 case distinctions, treesize of input 56 treesize of output 50 [2021-11-23 06:53:11,665 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 06:53:11,665 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 1 case distinctions, treesize of input 74 treesize of output 69 [2021-11-23 06:53:11,673 INFO L354 Elim1Store]: treesize reduction 27, result has 15.6 percent of original size [2021-11-23 06:53:11,675 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 1 case distinctions, treesize of input 62 treesize of output 64 [2021-11-23 06:53:12,027 INFO L354 Elim1Store]: treesize reduction 575, result has 32.1 percent of original size [2021-11-23 06:53:12,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 3798 treesize of output 3482 [2021-11-23 06:53:12,345 INFO L354 Elim1Store]: treesize reduction 881, result has 28.1 percent of original size [2021-11-23 06:53:12,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 7 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 6358 treesize of output 6473 [2021-11-23 06:53:12,451 INFO L354 Elim1Store]: treesize reduction 459, result has 22.5 percent of original size [2021-11-23 06:53:12,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 7062 treesize of output 7085 [2021-11-23 06:53:12,680 INFO L354 Elim1Store]: treesize reduction 495, result has 26.1 percent of original size [2021-11-23 06:53:12,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 7429 treesize of output 7554 [2021-11-23 06:53:12,861 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 7533 treesize of output 7535 [2021-11-23 06:53:12,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7535 treesize of output 7526 [2021-11-23 06:53:28,097 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:28,277 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:28,426 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 13 treesize of output 3 [2021-11-23 06:53:31,120 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 13 treesize of output 3 [2021-11-23 06:53:31,428 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:31,661 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:31,907 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 13 treesize of output 3 [2021-11-23 06:53:35,047 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:35,279 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 15 treesize of output 5 [2021-11-23 06:53:35,331 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:35,369 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 15 treesize of output 5 [2021-11-23 06:53:35,441 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 15 treesize of output 5 [2021-11-23 06:53:35,511 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 15 treesize of output 5 [2021-11-23 06:53:35,590 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:35,619 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:35,692 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 15 treesize of output 5 [2021-11-23 06:53:35,750 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 06:53:35,794 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 15 treesize of output 5 [2021-11-23 06:53:35,920 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 15 treesize of output 5 [2021-11-23 06:53:38,396 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 1080 treesize of output 1024 [2021-11-23 06:53:39,266 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 1190 treesize of output 1102 [2021-11-23 06:53:40,089 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 1190 treesize of output 1102 [2021-11-23 06:53:42,966 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 1080 treesize of output 1024 [2021-11-23 06:53:46,842 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 1090 treesize of output 1030 [2021-11-23 06:53:47,159 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 1090 treesize of output 1030 [2021-11-23 06:53:51,661 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 1116 treesize of output 1048 [2021-11-23 06:53:52,290 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 1199 treesize of output 1107 [2021-11-23 06:53:54,294 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 1246 treesize of output 1134 [2021-11-23 06:54:02,177 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 1099 treesize of output 1035 [2021-11-23 06:54:07,681 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 1099 treesize of output 1035 [2021-11-23 06:54:10,720 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 1246 treesize of output 1134 [2021-11-23 06:54:12,632 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 1116 treesize of output 1048 [2021-11-23 06:54:13,026 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 1199 treesize of output 1107 [2021-11-23 06:54:22,227 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 06:54:22,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 97 [2021-11-23 06:54:42,052 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 114 treesize of output 78 [2021-11-23 06:55:04,128 INFO L354 Elim1Store]: treesize reduction 140, result has 68.3 percent of original size [2021-11-23 06:55:04,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 5048 treesize of output 4808 Killed by 15