./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-net-wireless-mwl8k-ko---32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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/ldv-linux-3.7.3/main0_drivers-net-wireless-mwl8k-ko---32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash d88fd9ed443c9e913942e0f91257791e63e9fb5c07749ca0560c8eff1bad8360 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 11:18:38,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 11:18:38,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 11:18:38,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 11:18:38,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 11:18:38,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 11:18:38,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 11:18:38,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 11:18:38,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 11:18:38,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 11:18:38,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 11:18:38,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 11:18:38,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 11:18:38,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 11:18:38,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 11:18:38,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 11:18:38,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 11:18:38,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 11:18:38,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 11:18:38,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 11:18:38,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 11:18:38,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 11:18:38,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 11:18:38,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 11:18:38,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 11:18:38,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 11:18:38,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 11:18:38,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 11:18:38,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 11:18:38,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 11:18:38,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 11:18:38,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 11:18:38,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 11:18:38,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 11:18:38,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 11:18:38,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 11:18:38,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 11:18:38,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 11:18:38,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 11:18:38,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 11:18:38,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 11:18:38,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 11:18:38,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 11:18:38,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 11:18:38,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 11:18:38,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 11:18:38,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 11:18:38,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 11:18:38,264 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 11:18:38,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 11:18:38,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 11:18:38,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 11:18:38,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 11:18:38,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 11:18:38,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 11:18:38,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 11:18:38,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 11:18:38,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 11:18:38,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 11:18:38,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 11:18:38,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 11:18:38,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 11:18:38,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 11:18:38,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 11:18:38,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 11:18:38,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 11:18:38,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 11:18:38,267 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 11:18:38,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 11:18:38,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 11:18:38,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 11:18:38,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88fd9ed443c9e913942e0f91257791e63e9fb5c07749ca0560c8eff1bad8360 [2021-11-07 11:18:38,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 11:18:38,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 11:18:38,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 11:18:38,479 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 11:18:38,481 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 11:18:38,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-net-wireless-mwl8k-ko---32_7a--linux-3.7.3.i [2021-11-07 11:18:38,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7012bb1a/6b6431feb08e42eb90cc72141b3d121b/FLAGbca073daf [2021-11-07 11:18:39,230 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 11:18:39,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-net-wireless-mwl8k-ko---32_7a--linux-3.7.3.i [2021-11-07 11:18:39,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7012bb1a/6b6431feb08e42eb90cc72141b3d121b/FLAGbca073daf [2021-11-07 11:18:39,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7012bb1a/6b6431feb08e42eb90cc72141b3d121b [2021-11-07 11:18:39,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 11:18:39,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 11:18:39,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 11:18:39,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 11:18:39,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 11:18:39,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:39" (1/1) ... [2021-11-07 11:18:39,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d442fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:39, skipping insertion in model container [2021-11-07 11:18:39,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:39" (1/1) ... [2021-11-07 11:18:39,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 11:18:39,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 11:18:41,887 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-net-wireless-mwl8k-ko---32_7a--linux-3.7.3.i[369202,369215] [2021-11-07 11:18:42,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 11:18:42,065 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 11:18:42,379 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-net-wireless-mwl8k-ko---32_7a--linux-3.7.3.i[369202,369215] [2021-11-07 11:18:42,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 11:18:42,487 INFO L208 MainTranslator]: Completed translation [2021-11-07 11:18:42,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42 WrapperNode [2021-11-07 11:18:42,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 11:18:42,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 11:18:42,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 11:18:42,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 11:18:42,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:42,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:47,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 11:18:47,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 11:18:47,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 11:18:47,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 11:18:47,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:47,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:48,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:48,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:51,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:51,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:51,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:52,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 11:18:52,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 11:18:52,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 11:18:52,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 11:18:52,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (1/1) ... [2021-11-07 11:18:52,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 11:18:52,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 11:18:52,527 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) [2021-11-07 11:18:52,535 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 [2021-11-07 11:18:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 11:18:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 11:18:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 11:18:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 11:18:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 11:18:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 11:18:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 11:18:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 11:18:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 11:18:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 11:18:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 11:18:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 11:18:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 11:18:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 11:18:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 11:18:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 11:18:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 11:30:06,541 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 11:30:06,542 INFO L299 CfgBuilder]: Removed 22930 assume(true) statements. [2021-11-07 11:30:06,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:30:06 BoogieIcfgContainer [2021-11-07 11:30:06,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 11:30:06,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 11:30:06,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 11:30:06,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 11:30:06,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:18:39" (1/3) ... [2021-11-07 11:30:06,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a101942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:30:06, skipping insertion in model container [2021-11-07 11:30:06,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:42" (2/3) ... [2021-11-07 11:30:06,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a101942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:30:06, skipping insertion in model container [2021-11-07 11:30:06,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:30:06" (3/3) ... [2021-11-07 11:30:06,580 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers-net-wireless-mwl8k-ko---32_7a--linux-3.7.3.i [2021-11-07 11:30:06,584 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 11:30:06,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 326 error locations. [2021-11-07 11:30:06,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 11:30:06,702 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 [2021-11-07 11:30:06,703 INFO L340 AbstractCegarLoop]: Starting to check reachability of 326 error locations. [2021-11-07 11:30:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 31910 states, 31583 states have (on average 1.5683120666181174) internal successors, (49532), 31909 states have internal predecessors, (49532), 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) [2021-11-07 11:30:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 11:30:07,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 11:30:07,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 11:30:07,001 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr321ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 323 more)] === [2021-11-07 11:30:07,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 11:30:07,005 INFO L85 PathProgramCache]: Analyzing trace with hash 278617706, now seen corresponding path program 1 times [2021-11-07 11:30:07,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 11:30:07,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455377543] [2021-11-07 11:30:07,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 11:30:07,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 11:30:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 11:30:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 11:30:07,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 11:30:07,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455377543] [2021-11-07 11:30:07,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455377543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 11:30:07,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 11:30:07,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 11:30:07,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002857878] [2021-11-07 11:30:07,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 11:30:07,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 11:30:07,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 11:30:07,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 11:30:07,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:07,639 INFO L87 Difference]: Start difference. First operand has 31910 states, 31583 states have (on average 1.5683120666181174) internal successors, (49532), 31909 states have internal predecessors, (49532), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-07 11:30:09,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 11:30:10,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 11:30:10,673 INFO L93 Difference]: Finished difference Result 63816 states and 99060 transitions. [2021-11-07 11:30:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 11:30:10,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-07 11:30:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 11:30:10,812 INFO L225 Difference]: With dead ends: 63816 [2021-11-07 11:30:10,813 INFO L226 Difference]: Without dead ends: 31519 [2021-11-07 11:30:10,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:10,877 INFO L933 BasicCegarLoop]: 49061 mSDtfsCounter, 49058 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2063.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 49058 SdHoareTripleChecker+Valid, 49061 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 132.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2193.33ms IncrementalHoareTripleChecker+Time [2021-11-07 11:30:10,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49058 Valid, 49061 Invalid, 2 Unknown, 0 Unchecked, 132.94ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2193.33ms Time] [2021-11-07 11:30:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31519 states. [2021-11-07 11:30:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31519 to 31519. [2021-11-07 11:30:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31519 states, 31194 states have (on average 1.5479899980765532) internal successors, (48288), 31518 states have internal predecessors, (48288), 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) [2021-11-07 11:30:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31519 states to 31519 states and 48288 transitions. [2021-11-07 11:30:11,602 INFO L78 Accepts]: Start accepts. Automaton has 31519 states and 48288 transitions. Word has length 6 [2021-11-07 11:30:11,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 11:30:11,602 INFO L470 AbstractCegarLoop]: Abstraction has 31519 states and 48288 transitions. [2021-11-07 11:30:11,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-07 11:30:11,603 INFO L276 IsEmpty]: Start isEmpty. Operand 31519 states and 48288 transitions. [2021-11-07 11:30:11,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 11:30:11,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 11:30:11,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 11:30:11,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 11:30:11,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr322ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 323 more)] === [2021-11-07 11:30:11,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 11:30:11,605 INFO L85 PathProgramCache]: Analyzing trace with hash 47332323, now seen corresponding path program 1 times [2021-11-07 11:30:11,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 11:30:11,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307353547] [2021-11-07 11:30:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 11:30:11,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 11:30:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 11:30:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 11:30:11,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 11:30:11,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307353547] [2021-11-07 11:30:11,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307353547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 11:30:11,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 11:30:11,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 11:30:11,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872539373] [2021-11-07 11:30:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 11:30:11,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 11:30:11,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 11:30:11,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 11:30:11,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:11,764 INFO L87 Difference]: Start difference. First operand 31519 states and 48288 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 11:30:13,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 11:30:15,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 11:30:15,972 INFO L93 Difference]: Finished difference Result 87479 states and 135326 transitions. [2021-11-07 11:30:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 11:30:15,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 11:30:15,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 11:30:16,105 INFO L225 Difference]: With dead ends: 87479 [2021-11-07 11:30:16,108 INFO L226 Difference]: Without dead ends: 55962 [2021-11-07 11:30:16,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:16,166 INFO L933 BasicCegarLoop]: 48072 mSDtfsCounter, 38864 mSDsluCounter, 46988 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 538 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2919.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38864 SdHoareTripleChecker+Valid, 95060 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.70ms SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3282.50ms IncrementalHoareTripleChecker+Time [2021-11-07 11:30:16,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38864 Valid, 95060 Invalid, 1399 Unknown, 0 Unchecked, 81.70ms Time], IncrementalHoareTripleChecker [538 Valid, 860 Invalid, 1 Unknown, 0 Unchecked, 3282.50ms Time] [2021-11-07 11:30:16,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55962 states. [2021-11-07 11:30:17,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55962 to 55748. [2021-11-07 11:30:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55748 states, 55423 states have (on average 1.5646392292008733) internal successors, (86717), 55747 states have internal predecessors, (86717), 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) [2021-11-07 11:30:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55748 states to 55748 states and 86717 transitions. [2021-11-07 11:30:17,688 INFO L78 Accepts]: Start accepts. Automaton has 55748 states and 86717 transitions. Word has length 7 [2021-11-07 11:30:17,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 11:30:17,691 INFO L470 AbstractCegarLoop]: Abstraction has 55748 states and 86717 transitions. [2021-11-07 11:30:17,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 11:30:17,691 INFO L276 IsEmpty]: Start isEmpty. Operand 55748 states and 86717 transitions. [2021-11-07 11:30:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 11:30:17,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 11:30:17,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 11:30:17,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 11:30:17,693 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr323ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 323 more)] === [2021-11-07 11:30:17,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 11:30:17,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1467420052, now seen corresponding path program 1 times [2021-11-07 11:30:17,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 11:30:17,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277268066] [2021-11-07 11:30:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 11:30:17,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 11:30:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 11:30:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 11:30:17,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 11:30:17,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277268066] [2021-11-07 11:30:17,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277268066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 11:30:17,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 11:30:17,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 11:30:17,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231576802] [2021-11-07 11:30:17,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 11:30:17,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 11:30:17,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 11:30:17,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 11:30:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:17,852 INFO L87 Difference]: Start difference. First operand 55748 states and 86717 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) [2021-11-07 11:30:19,948 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 11:30:20,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 11:30:20,901 INFO L93 Difference]: Finished difference Result 55748 states and 86717 transitions. [2021-11-07 11:30:20,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 11:30:20,902 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 [2021-11-07 11:30:20,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 11:30:21,012 INFO L225 Difference]: With dead ends: 55748 [2021-11-07 11:30:21,012 INFO L226 Difference]: Without dead ends: 55746 [2021-11-07 11:30:21,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:21,046 INFO L933 BasicCegarLoop]: 48285 mSDtfsCounter, 48280 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2094.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48280 SdHoareTripleChecker+Valid, 48285 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2267.80ms IncrementalHoareTripleChecker+Time [2021-11-07 11:30:21,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48280 Valid, 48285 Invalid, 2 Unknown, 0 Unchecked, 41.19ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2267.80ms Time] [2021-11-07 11:30:21,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55746 states. [2021-11-07 11:30:22,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55746 to 55746. [2021-11-07 11:30:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55746 states, 55422 states have (on average 1.5646313738226696) internal successors, (86715), 55745 states have internal predecessors, (86715), 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) [2021-11-07 11:30:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55746 states to 55746 states and 86715 transitions. [2021-11-07 11:30:22,307 INFO L78 Accepts]: Start accepts. Automaton has 55746 states and 86715 transitions. Word has length 8 [2021-11-07 11:30:22,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 11:30:22,308 INFO L470 AbstractCegarLoop]: Abstraction has 55746 states and 86715 transitions. [2021-11-07 11:30:22,308 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) [2021-11-07 11:30:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 55746 states and 86715 transitions. [2021-11-07 11:30:22,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 11:30:22,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 11:30:22,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 11:30:22,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 11:30:22,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr324ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 323 more)] === [2021-11-07 11:30:22,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 11:30:22,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1754500595, now seen corresponding path program 1 times [2021-11-07 11:30:22,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 11:30:22,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015665245] [2021-11-07 11:30:22,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 11:30:22,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 11:30:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 11:30:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 11:30:22,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 11:30:22,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015665245] [2021-11-07 11:30:22,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015665245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 11:30:22,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 11:30:22,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 11:30:22,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103247856] [2021-11-07 11:30:22,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 11:30:22,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 11:30:22,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 11:30:22,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 11:30:22,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:22,639 INFO L87 Difference]: Start difference. First operand 55746 states and 86715 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-07 11:30:24,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 11:30:25,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 11:30:25,516 INFO L93 Difference]: Finished difference Result 55746 states and 86715 transitions. [2021-11-07 11:30:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 11:30:25,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 11:30:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 11:30:25,613 INFO L225 Difference]: With dead ends: 55746 [2021-11-07 11:30:25,613 INFO L226 Difference]: Without dead ends: 55744 [2021-11-07 11:30:25,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:25,631 INFO L933 BasicCegarLoop]: 48283 mSDtfsCounter, 48277 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2072.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48277 SdHoareTripleChecker+Valid, 48283 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2217.54ms IncrementalHoareTripleChecker+Time [2021-11-07 11:30:25,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48277 Valid, 48283 Invalid, 2 Unknown, 0 Unchecked, 36.42ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2217.54ms Time] [2021-11-07 11:30:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55744 states. [2021-11-07 11:30:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55744 to 55744. [2021-11-07 11:30:26,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55744 states, 55421 states have (on average 1.564623518160986) internal successors, (86713), 55743 states have internal predecessors, (86713), 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) [2021-11-07 11:30:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55744 states to 55744 states and 86713 transitions. [2021-11-07 11:30:26,679 INFO L78 Accepts]: Start accepts. Automaton has 55744 states and 86713 transitions. Word has length 9 [2021-11-07 11:30:26,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 11:30:26,679 INFO L470 AbstractCegarLoop]: Abstraction has 55744 states and 86713 transitions. [2021-11-07 11:30:26,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-07 11:30:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 55744 states and 86713 transitions. [2021-11-07 11:30:26,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 11:30:26,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 11:30:26,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 11:30:26,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 11:30:26,680 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr325ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 323 more)] === [2021-11-07 11:30:26,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 11:30:26,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1445174462, now seen corresponding path program 1 times [2021-11-07 11:30:26,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 11:30:26,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860260907] [2021-11-07 11:30:26,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 11:30:26,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 11:30:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 11:30:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 11:30:26,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 11:30:26,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860260907] [2021-11-07 11:30:26,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860260907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 11:30:26,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 11:30:26,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 11:30:26,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500345895] [2021-11-07 11:30:26,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 11:30:26,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 11:30:26,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 11:30:26,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 11:30:26,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:26,808 INFO L87 Difference]: Start difference. First operand 55744 states and 86713 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-11-07 11:30:28,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 11:30:29,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 11:30:29,599 INFO L93 Difference]: Finished difference Result 55744 states and 86713 transitions. [2021-11-07 11:30:29,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 11:30:29,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2021-11-07 11:30:29,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 11:30:29,901 INFO L225 Difference]: With dead ends: 55744 [2021-11-07 11:30:29,902 INFO L226 Difference]: Without dead ends: 55737 [2021-11-07 11:30:29,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:29,930 INFO L933 BasicCegarLoop]: 48282 mSDtfsCounter, 48274 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2053.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48274 SdHoareTripleChecker+Valid, 48282 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2053.89ms IncrementalHoareTripleChecker+Time [2021-11-07 11:30:29,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48274 Valid, 48282 Invalid, 1 Unknown, 0 Unchecked, 38.10ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2053.89ms Time] [2021-11-07 11:30:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55737 states. [2021-11-07 11:30:31,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55737 to 55737. [2021-11-07 11:30:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55737 states, 55415 states have (on average 1.5646305152034647) internal successors, (86704), 55736 states have internal predecessors, (86704), 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) [2021-11-07 11:30:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55737 states to 55737 states and 86704 transitions. [2021-11-07 11:30:31,179 INFO L78 Accepts]: Start accepts. Automaton has 55737 states and 86704 transitions. Word has length 10 [2021-11-07 11:30:31,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 11:30:31,179 INFO L470 AbstractCegarLoop]: Abstraction has 55737 states and 86704 transitions. [2021-11-07 11:30:31,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-11-07 11:30:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 55737 states and 86704 transitions. [2021-11-07 11:30:31,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 11:30:31,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 11:30:31,186 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] [2021-11-07 11:30:31,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 11:30:31,186 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr212ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 323 more)] === [2021-11-07 11:30:31,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 11:30:31,186 INFO L85 PathProgramCache]: Analyzing trace with hash 987944742, now seen corresponding path program 1 times [2021-11-07 11:30:31,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 11:30:31,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834482053] [2021-11-07 11:30:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 11:30:31,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 11:30:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 11:30:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 11:30:31,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 11:30:31,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834482053] [2021-11-07 11:30:31,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834482053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 11:30:31,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 11:30:31,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 11:30:31,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098538006] [2021-11-07 11:30:31,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 11:30:31,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 11:30:31,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 11:30:31,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 11:30:31,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:31,329 INFO L87 Difference]: Start difference. First operand 55737 states and 86704 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-07 11:30:35,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 11:30:35,525 INFO L93 Difference]: Finished difference Result 111900 states and 173834 transitions. [2021-11-07 11:30:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 11:30:35,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-11-07 11:30:35,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 11:30:35,624 INFO L225 Difference]: With dead ends: 111900 [2021-11-07 11:30:35,624 INFO L226 Difference]: Without dead ends: 56165 [2021-11-07 11:30:35,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.11ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 11:30:35,676 INFO L933 BasicCegarLoop]: 46629 mSDtfsCounter, 0 mSDsluCounter, 44427 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 2245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2337.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91056 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.39ms SdHoareTripleChecker+Time, 2245 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3231.26ms IncrementalHoareTripleChecker+Time [2021-11-07 11:30:35,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 91056 Invalid, 5089 Unknown, 0 Unchecked, 51.39ms Time], IncrementalHoareTripleChecker [2245 Valid, 2844 Invalid, 0 Unknown, 0 Unchecked, 3231.26ms Time] [2021-11-07 11:30:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56165 states. [2021-11-07 11:30:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56165 to 55737. [2021-11-07 11:30:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55737 states, 55415 states have (on average 1.5414598935306325) internal successors, (85420), 55736 states have internal predecessors, (85420), 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) [2021-11-07 11:30:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55737 states to 55737 states and 85420 transitions. [2021-11-07 11:30:36,798 INFO L78 Accepts]: Start accepts. Automaton has 55737 states and 85420 transitions. Word has length 36 [2021-11-07 11:30:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 11:30:36,799 INFO L470 AbstractCegarLoop]: Abstraction has 55737 states and 85420 transitions. [2021-11-07 11:30:36,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-07 11:30:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 55737 states and 85420 transitions. [2021-11-07 11:30:36,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 11:30:36,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 11:30:36,802 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] [2021-11-07 11:30:36,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 11:30:36,802 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr212ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 323 more)] === [2021-11-07 11:30:36,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 11:30:36,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1111305801, now seen corresponding path program 1 times [2021-11-07 11:30:36,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 11:30:36,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261092469] [2021-11-07 11:30:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 11:30:36,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 11:30:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 11:30:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 11:30:38,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 11:30:38,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261092469] [2021-11-07 11:30:38,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261092469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 11:30:38,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 11:30:38,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 11:30:38,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8025138] [2021-11-07 11:30:38,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 11:30:38,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 11:30:38,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 11:30:38,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 11:30:38,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 11:30:38,621 INFO L87 Difference]: Start difference. First operand 55737 states and 85420 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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)