./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.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_BER_test1-2.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 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 05:08:49,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 05:08:49,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 05:08:49,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 05:08:49,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 05:08:49,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 05:08:49,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 05:08:49,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 05:08:49,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 05:08:49,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 05:08:49,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 05:08:49,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 05:08:49,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 05:08:49,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 05:08:49,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 05:08:49,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 05:08:49,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 05:08:49,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 05:08:49,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 05:08:49,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 05:08:49,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 05:08:49,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 05:08:49,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 05:08:49,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 05:08:49,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 05:08:49,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 05:08:49,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 05:08:49,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 05:08:49,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 05:08:49,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 05:08:49,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 05:08:49,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 05:08:49,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 05:08:49,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 05:08:49,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 05:08:49,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 05:08:49,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 05:08:49,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 05:08:49,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 05:08:49,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 05:08:49,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 05:08:49,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 05:08:49,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 05:08:49,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 05:08:49,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 05:08:49,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 05:08:49,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 05:08:49,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 05:08:49,250 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 05:08:49,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 05:08:49,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 05:08:49,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 05:08:49,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 05:08:49,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 05:08:49,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 05:08:49,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 05:08:49,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 05:08:49,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 05:08:49,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 05:08:49,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 05:08:49,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 05:08:49,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 05:08:49,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 05:08:49,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 05:08:49,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 05:08:49,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 05:08:49,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 05:08:49,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 05:08:49,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 05:08:49,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 05:08:49,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 05:08:49,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 05:08:49,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 05:08:49,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 05:08:49,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 [2021-11-23 05:08:49,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 05:08:49,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 05:08:49,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 05:08:49,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 05:08:49,445 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 05:08:49,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2021-11-23 05:08:49,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a12dbea2/57debcbe33d449278494c049923c739a/FLAG219bad4d9 [2021-11-23 05:08:49,957 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 05:08:49,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2021-11-23 05:08:49,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a12dbea2/57debcbe33d449278494c049923c739a/FLAG219bad4d9 [2021-11-23 05:08:49,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a12dbea2/57debcbe33d449278494c049923c739a [2021-11-23 05:08:49,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 05:08:49,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 05:08:49,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 05:08:49,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 05:08:49,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 05:08:49,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:49" (1/1) ... [2021-11-23 05:08:50,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7cfd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50, skipping insertion in model container [2021-11-23 05:08:50,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:49" (1/1) ... [2021-11-23 05:08:50,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 05:08:50,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 05:08:50,316 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_BER_test1-2.i[33021,33034] [2021-11-23 05:08:50,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 05:08:50,414 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 05:08:50,445 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_BER_test1-2.i[33021,33034] [2021-11-23 05:08:50,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 05:08:50,494 INFO L208 MainTranslator]: Completed translation [2021-11-23 05:08:50,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50 WrapperNode [2021-11-23 05:08:50,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 05:08:50,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 05:08:50,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 05:08:50,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 05:08:50,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,585 INFO L137 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 821 [2021-11-23 05:08:50,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 05:08:50,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 05:08:50,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 05:08:50,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 05:08:50,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 05:08:50,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 05:08:50,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 05:08:50,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 05:08:50,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (1/1) ... [2021-11-23 05:08:50,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 05:08:50,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 05:08:50,692 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 05:08:50,698 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 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 05:08:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 05:08:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 05:08:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 05:08:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 05:08:50,909 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 05:08:50,910 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 05:08:51,428 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 05:08:51,438 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 05:08:51,438 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-23 05:08:51,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:08:51 BoogieIcfgContainer [2021-11-23 05:08:51,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 05:08:51,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 05:08:51,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 05:08:51,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 05:08:51,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:08:49" (1/3) ... [2021-11-23 05:08:51,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3f3698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:08:51, skipping insertion in model container [2021-11-23 05:08:51,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:50" (2/3) ... [2021-11-23 05:08:51,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3f3698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:08:51, skipping insertion in model container [2021-11-23 05:08:51,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:08:51" (3/3) ... [2021-11-23 05:08:51,458 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-2.i [2021-11-23 05:08:51,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 05:08:51,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-23 05:08:51,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 05:08:51,520 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 05:08:51,520 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-23 05:08:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 166 states have (on average 1.6867469879518073) internal successors, (280), 176 states have internal predecessors, (280), 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 05:08:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 05:08:51,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:51,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 05:08:51,536 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2021-11-23 05:08:51,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:51,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766821857] [2021-11-23 05:08:51,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:51,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:08:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 05:08:51,660 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 05:08:51,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 05:08:51,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766821857] [2021-11-23 05:08:51,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766821857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 05:08:51,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 05:08:51,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 05:08:51,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736266340] [2021-11-23 05:08:51,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 05:08:51,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 05:08:51,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 05:08:51,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 05:08:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 05:08:51,694 INFO L87 Difference]: Start difference. First operand has 177 states, 166 states have (on average 1.6867469879518073) internal successors, (280), 176 states have internal predecessors, (280), 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 05:08:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 05:08:51,736 INFO L93 Difference]: Finished difference Result 352 states and 558 transitions. [2021-11-23 05:08:51,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 05:08:51,738 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 05:08:51,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 05:08:51,746 INFO L225 Difference]: With dead ends: 352 [2021-11-23 05:08:51,747 INFO L226 Difference]: Without dead ends: 144 [2021-11-23 05:08:51,750 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 05:08:51,753 INFO L933 BasicCegarLoop]: 226 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, 226 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 05:08:51,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 05:08:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-23 05:08:51,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-23 05:08:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 134 states have (on average 1.3582089552238805) internal successors, (182), 143 states have internal predecessors, (182), 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 05:08:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2021-11-23 05:08:51,796 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 182 transitions. Word has length 8 [2021-11-23 05:08:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 05:08:51,796 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 182 transitions. [2021-11-23 05:08:51,797 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 05:08:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 182 transitions. [2021-11-23 05:08:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 05:08:51,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:51,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 05:08:51,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 05:08:51,798 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:51,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:51,801 INFO L85 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2021-11-23 05:08:51,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:51,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541029778] [2021-11-23 05:08:51,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:51,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:08:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 05:08:51,870 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 05:08:51,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 05:08:51,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541029778] [2021-11-23 05:08:51,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541029778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 05:08:51,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 05:08:51,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 05:08:51,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932883911] [2021-11-23 05:08:51,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 05:08:51,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 05:08:51,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 05:08:51,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 05:08:51,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 05:08:51,878 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 05:08:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 05:08:51,911 INFO L93 Difference]: Finished difference Result 286 states and 362 transitions. [2021-11-23 05:08:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 05:08:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 05:08:51,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 05:08:51,915 INFO L225 Difference]: With dead ends: 286 [2021-11-23 05:08:51,915 INFO L226 Difference]: Without dead ends: 231 [2021-11-23 05:08:51,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 05:08:51,916 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 113 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 05:08:51,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 356 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 05:08:51,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-23 05:08:51,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 145. [2021-11-23 05:08:51,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 135 states have (on average 1.3555555555555556) internal successors, (183), 144 states have internal predecessors, (183), 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 05:08:51,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 183 transitions. [2021-11-23 05:08:51,925 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 183 transitions. Word has length 8 [2021-11-23 05:08:51,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 05:08:51,926 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 183 transitions. [2021-11-23 05:08:51,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 05:08:51,926 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 183 transitions. [2021-11-23 05:08:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 05:08:51,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:51,928 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] [2021-11-23 05:08:51,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 05:08:51,928 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash -781067853, now seen corresponding path program 1 times [2021-11-23 05:08:51,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:51,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766697040] [2021-11-23 05:08:51,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:51,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:08:52,052 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 05:08:52,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962826213] [2021-11-23 05:08:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:52,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 05:08:52,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 05:08:52,054 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 05:08:52,056 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 05:08:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 05:08:52,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 05:08:52,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 05:08:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 05:08:52,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 05:08:52,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 05:08:52,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766697040] [2021-11-23 05:08:52,676 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 05:08:52,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962826213] [2021-11-23 05:08:52,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962826213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 05:08:52,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 05:08:52,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 05:08:52,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638891944] [2021-11-23 05:08:52,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 05:08:52,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 05:08:52,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 05:08:52,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 05:08:52,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 05:08:52,678 INFO L87 Difference]: Start difference. First operand 145 states and 183 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 05:08:52,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 05:08:52,746 INFO L93 Difference]: Finished difference Result 308 states and 394 transitions. [2021-11-23 05:08:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 05:08:52,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-23 05:08:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 05:08:52,747 INFO L225 Difference]: With dead ends: 308 [2021-11-23 05:08:52,747 INFO L226 Difference]: Without dead ends: 166 [2021-11-23 05:08:52,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 05:08:52,748 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 9 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 309 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 05:08:52,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 309 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 05:08:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-23 05:08:52,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2021-11-23 05:08:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 155 states have (on average 1.3096774193548386) internal successors, (203), 164 states have internal predecessors, (203), 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 05:08:52,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 203 transitions. [2021-11-23 05:08:52,754 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 203 transitions. Word has length 59 [2021-11-23 05:08:52,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 05:08:52,755 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 203 transitions. [2021-11-23 05:08:52,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 05:08:52,755 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 203 transitions. [2021-11-23 05:08:52,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 05:08:52,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:52,756 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] [2021-11-23 05:08:52,806 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 05:08:52,972 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 05:08:52,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:52,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:52,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1269877969, now seen corresponding path program 1 times [2021-11-23 05:08:52,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:52,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384163705] [2021-11-23 05:08:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:52,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:08:53,053 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 05:08:53,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871610312] [2021-11-23 05:08:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:53,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 05:08:53,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 05:08:53,055 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 05:08:53,057 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 05:08:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 05:08:53,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1539 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 05:08:53,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 05:08:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 05:08:53,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 05:08:53,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 05:08:53,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384163705] [2021-11-23 05:08:53,597 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 05:08:53,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871610312] [2021-11-23 05:08:53,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871610312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 05:08:53,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 05:08:53,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 05:08:53,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209961078] [2021-11-23 05:08:53,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 05:08:53,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 05:08:53,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 05:08:53,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 05:08:53,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 05:08:53,599 INFO L87 Difference]: Start difference. First operand 165 states and 203 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 05:08:53,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 05:08:53,643 INFO L93 Difference]: Finished difference Result 319 states and 395 transitions. [2021-11-23 05:08:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 05:08:53,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2021-11-23 05:08:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 05:08:53,646 INFO L225 Difference]: With dead ends: 319 [2021-11-23 05:08:53,646 INFO L226 Difference]: Without dead ends: 157 [2021-11-23 05:08:53,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 05:08:53,648 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 170 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 317 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 05:08:53,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 317 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 05:08:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-23 05:08:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2021-11-23 05:08:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 141 states have (on average 1.2907801418439717) internal successors, (182), 150 states have internal predecessors, (182), 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 05:08:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2021-11-23 05:08:53,653 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 59 [2021-11-23 05:08:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 05:08:53,653 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2021-11-23 05:08:53,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 05:08:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2021-11-23 05:08:53,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 05:08:53,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:53,655 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] [2021-11-23 05:08:53,703 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 05:08:53,887 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 05:08:53,888 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:53,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:53,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1890386365, now seen corresponding path program 1 times [2021-11-23 05:08:53,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:53,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040910367] [2021-11-23 05:08:53,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:53,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:08:53,952 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 05:08:53,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058934454] [2021-11-23 05:08:53,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:53,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 05:08:53,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 05:08:53,966 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 05:08:53,968 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 05:08:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 05:08:54,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1525 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 05:08:54,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 05:08:54,563 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 05:08:54,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 05:08:54,682 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 05:08:54,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 05:08:54,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040910367] [2021-11-23 05:08:54,683 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 05:08:54,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058934454] [2021-11-23 05:08:54,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058934454] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 05:08:54,683 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 05:08:54,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-23 05:08:54,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581246201] [2021-11-23 05:08:54,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 05:08:54,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 05:08:54,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 05:08:54,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 05:08:54,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 05:08:54,685 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 05:08:54,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 05:08:54,716 INFO L93 Difference]: Finished difference Result 485 states and 589 transitions. [2021-11-23 05:08:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 05:08:54,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 59 [2021-11-23 05:08:54,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 05:08:54,718 INFO L225 Difference]: With dead ends: 485 [2021-11-23 05:08:54,718 INFO L226 Difference]: Without dead ends: 430 [2021-11-23 05:08:54,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 05:08:54,719 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 692 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 05:08:54,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 550 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 05:08:54,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-23 05:08:54,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-11-23 05:08:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 420 states have (on average 1.2404761904761905) internal successors, (521), 429 states have internal predecessors, (521), 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 05:08:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 521 transitions. [2021-11-23 05:08:54,729 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 521 transitions. Word has length 59 [2021-11-23 05:08:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 05:08:54,730 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 521 transitions. [2021-11-23 05:08:54,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 05:08:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 521 transitions. [2021-11-23 05:08:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-23 05:08:54,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:54,733 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 05:08:54,759 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 05:08:54,939 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 05:08:54,940 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:54,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:54,940 INFO L85 PathProgramCache]: Analyzing trace with hash 292771206, now seen corresponding path program 2 times [2021-11-23 05:08:54,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:54,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464650931] [2021-11-23 05:08:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:54,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:08:55,169 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 05:08:55,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611502741] [2021-11-23 05:08:55,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 05:08:55,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 05:08:55,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 05:08:55,183 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 05:08:55,185 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 05:08:55,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-23 05:08:55,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 05:08:55,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 05:08:55,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 05:08:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2021-11-23 05:08:56,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 05:08:56,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 05:08:56,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464650931] [2021-11-23 05:08:56,703 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 05:08:56,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611502741] [2021-11-23 05:08:56,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611502741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 05:08:56,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 05:08:56,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 05:08:56,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31323017] [2021-11-23 05:08:56,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 05:08:56,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 05:08:56,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 05:08:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 05:08:56,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 05:08:56,705 INFO L87 Difference]: Start difference. First operand 430 states and 521 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 05:08:56,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 05:08:56,832 INFO L93 Difference]: Finished difference Result 802 states and 976 transitions. [2021-11-23 05:08:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 05:08:56,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 212 [2021-11-23 05:08:56,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 05:08:56,835 INFO L225 Difference]: With dead ends: 802 [2021-11-23 05:08:56,835 INFO L226 Difference]: Without dead ends: 428 [2021-11-23 05:08:56,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 209 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 05:08:56,839 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 19 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 05:08:56,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 473 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 05:08:56,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-23 05:08:56,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2021-11-23 05:08:56,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 418 states have (on average 1.2392344497607655) internal successors, (518), 427 states have internal predecessors, (518), 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 05:08:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 518 transitions. [2021-11-23 05:08:56,852 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 518 transitions. Word has length 212 [2021-11-23 05:08:56,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 05:08:56,852 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 518 transitions. [2021-11-23 05:08:56,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 05:08:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 518 transitions. [2021-11-23 05:08:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-23 05:08:56,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:56,855 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 05:08:56,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 05:08:57,063 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 05:08:57,064 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:57,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash -202059402, now seen corresponding path program 1 times [2021-11-23 05:08:57,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:57,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768668799] [2021-11-23 05:08:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:57,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:08:57,237 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 05:08:57,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233950770] [2021-11-23 05:08:57,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:57,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 05:08:57,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 05:08:57,239 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 05:08:57,240 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 05:08:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 05:08:58,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 5036 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 05:08:58,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 05:08:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 05:08:59,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 05:08:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 05:08:59,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 05:08:59,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768668799] [2021-11-23 05:08:59,476 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 05:08:59,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233950770] [2021-11-23 05:08:59,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233950770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 05:08:59,477 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 05:08:59,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-23 05:08:59,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843522059] [2021-11-23 05:08:59,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 05:08:59,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 05:08:59,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 05:08:59,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 05:08:59,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 05:08:59,482 INFO L87 Difference]: Start difference. First operand 428 states and 518 transitions. Second operand has 12 states, 12 states have (on average 36.0) internal successors, (432), 12 states have internal predecessors, (432), 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 05:08:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 05:08:59,569 INFO L93 Difference]: Finished difference Result 1041 states and 1267 transitions. [2021-11-23 05:08:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 05:08:59,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 36.0) internal successors, (432), 12 states have internal predecessors, (432), 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 219 [2021-11-23 05:08:59,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 05:08:59,575 INFO L225 Difference]: With dead ends: 1041 [2021-11-23 05:08:59,575 INFO L226 Difference]: Without dead ends: 986 [2021-11-23 05:08:59,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 05:08:59,576 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 2062 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 05:08:59,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2062 Valid, 1240 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 05:08:59,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2021-11-23 05:08:59,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 986. [2021-11-23 05:08:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 976 states have (on average 1.2254098360655739) internal successors, (1196), 985 states have internal predecessors, (1196), 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 05:08:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1196 transitions. [2021-11-23 05:08:59,594 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1196 transitions. Word has length 219 [2021-11-23 05:08:59,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 05:08:59,596 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1196 transitions. [2021-11-23 05:08:59,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 36.0) internal successors, (432), 12 states have internal predecessors, (432), 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 05:08:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1196 transitions. [2021-11-23 05:08:59,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2021-11-23 05:08:59,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 05:08:59,604 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 05:08:59,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-23 05:08:59,827 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 05:08:59,827 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-23 05:08:59,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 05:08:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1985764010, now seen corresponding path program 2 times [2021-11-23 05:08:59,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 05:08:59,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158341600] [2021-11-23 05:08:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 05:08:59,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 05:09:00,335 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 05:09:00,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809549532] [2021-11-23 05:09:00,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 05:09:00,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 05:09:00,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 05:09:00,338 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 05:09:00,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process Killed by 15