/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 13:28:59,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 13:28:59,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 13:28:59,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 13:28:59,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 13:28:59,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 13:28:59,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 13:28:59,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 13:28:59,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 13:28:59,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 13:28:59,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 13:28:59,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 13:28:59,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 13:28:59,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 13:28:59,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 13:28:59,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 13:28:59,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 13:28:59,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 13:28:59,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 13:28:59,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 13:28:59,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 13:28:59,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 13:28:59,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 13:28:59,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 13:28:59,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-28 13:28:59,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-28 13:28:59,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-28 13:28:59,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-28 13:28:59,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-28 13:28:59,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-28 13:28:59,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-28 13:28:59,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-28 13:28:59,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-28 13:28:59,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-28 13:28:59,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-28 13:28:59,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-28 13:28:59,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-28 13:28:59,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-28 13:28:59,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 13:28:59,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 13:28:59,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 13:28:59,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-28 13:28:59,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 13:28:59,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 13:28:59,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 13:28:59,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 13:28:59,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 13:28:59,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 13:28:59,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 13:28:59,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 13:28:59,269 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 13:28:59,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 13:28:59,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 13:28:59,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 13:28:59,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 13:28:59,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 13:28:59,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 13:28:59,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 13:28:59,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 13:28:59,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 13:28:59,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 13:28:59,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 13:28:59,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 13:28:59,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 13:28:59,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 13:28:59,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 13:28:59,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 13:28:59,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 13:28:59,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 13:28:59,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 13:28:59,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 13:28:59,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 13:28:59,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 13:28:59,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 13:28:59,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 13:28:59,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 13:28:59,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 13:28:59,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 13:28:59,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 13:28:59,490 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 13:28:59,491 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 13:28:59,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-01-28 13:28:59,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14919197a/ee36eb1515d14ac297ae82de8f3962d3/FLAG89453f10b [2022-01-28 13:28:59,937 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 13:28:59,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-01-28 13:28:59,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14919197a/ee36eb1515d14ac297ae82de8f3962d3/FLAG89453f10b [2022-01-28 13:28:59,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14919197a/ee36eb1515d14ac297ae82de8f3962d3 [2022-01-28 13:28:59,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 13:28:59,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 13:28:59,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 13:28:59,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 13:28:59,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 13:28:59,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:28:59" (1/1) ... [2022-01-28 13:28:59,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223908e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:28:59, skipping insertion in model container [2022-01-28 13:28:59,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:28:59" (1/1) ... [2022-01-28 13:28:59,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 13:28:59,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 13:29:00,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-01-28 13:29:00,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 13:29:00,210 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 13:29:00,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-01-28 13:29:00,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 13:29:00,234 INFO L208 MainTranslator]: Completed translation [2022-01-28 13:29:00,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00 WrapperNode [2022-01-28 13:29:00,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 13:29:00,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 13:29:00,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 13:29:00,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 13:29:00,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,284 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2022-01-28 13:29:00,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 13:29:00,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 13:29:00,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 13:29:00,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 13:29:00,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 13:29:00,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 13:29:00,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 13:29:00,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 13:29:00,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (1/1) ... [2022-01-28 13:29:00,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 13:29:00,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:29:00,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-28 13:29:00,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-28 13:29:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 13:29:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 13:29:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 13:29:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 13:29:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-28 13:29:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-28 13:29:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-28 13:29:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-28 13:29:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-28 13:29:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-28 13:29:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 13:29:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-28 13:29:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-28 13:29:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-28 13:29:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 13:29:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 13:29:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 13:29:00,402 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 13:29:00,518 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 13:29:00,519 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 13:29:00,844 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 13:29:00,951 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 13:29:00,951 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-28 13:29:00,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:29:00 BoogieIcfgContainer [2022-01-28 13:29:00,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 13:29:00,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 13:29:00,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 13:29:00,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 13:29:00,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:28:59" (1/3) ... [2022-01-28 13:29:00,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f018fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:29:00, skipping insertion in model container [2022-01-28 13:29:00,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:29:00" (2/3) ... [2022-01-28 13:29:00,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f018fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:29:00, skipping insertion in model container [2022-01-28 13:29:00,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:29:00" (3/3) ... [2022-01-28 13:29:00,960 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-01-28 13:29:00,963 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 13:29:00,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 13:29:00,964 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 13:29:00,964 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 13:29:00,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,991 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,995 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,996 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,999 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:00,999 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,000 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,000 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,001 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,002 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,002 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,002 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,009 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,009 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,009 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,010 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,011 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,012 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,021 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,021 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,023 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:29:01,025 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-28 13:29:01,056 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 13:29:01,061 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 13:29:01,061 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-28 13:29:01,071 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 215 places, 223 transitions, 470 flow [2022-01-28 13:29:01,311 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-28 13:29:01,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:01,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:01,388 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash -559935921, now seen corresponding path program 1 times [2022-01-28 13:29:01,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:01,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084918045] [2022-01-28 13:29:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:01,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:29:01,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:01,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084918045] [2022-01-28 13:29:01,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084918045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:01,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:01,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 13:29:01,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268649567] [2022-01-28 13:29:01,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:01,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-28 13:29:01,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:01,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-28 13:29:01,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 13:29:01,690 INFO L87 Difference]: Start difference. First operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 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 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:01,832 INFO L93 Difference]: Finished difference Result 6644 states and 23512 transitions. [2022-01-28 13:29:01,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 13:29:01,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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 159 [2022-01-28 13:29:01,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:01,891 INFO L225 Difference]: With dead ends: 6644 [2022-01-28 13:29:01,891 INFO L226 Difference]: Without dead ends: 6638 [2022-01-28 13:29:01,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 13:29:01,895 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:01,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 13:29:01,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2022-01-28 13:29:02,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6638. [2022-01-28 13:29:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 3.5416603887298477) internal successors, (23506), 6637 states have internal predecessors, (23506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 23506 transitions. [2022-01-28 13:29:02,236 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 23506 transitions. Word has length 159 [2022-01-28 13:29:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:02,237 INFO L470 AbstractCegarLoop]: Abstraction has 6638 states and 23506 transitions. [2022-01-28 13:29:02,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 23506 transitions. [2022-01-28 13:29:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-28 13:29:02,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:02,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:02,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 13:29:02,262 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:02,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash 864045723, now seen corresponding path program 1 times [2022-01-28 13:29:02,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:02,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488387524] [2022-01-28 13:29:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:02,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:29:02,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:02,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488387524] [2022-01-28 13:29:02,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488387524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:02,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:02,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:29:02,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257648339] [2022-01-28 13:29:02,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:02,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:29:02,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:02,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:29:02,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:29:02,495 INFO L87 Difference]: Start difference. First operand 6638 states and 23506 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:02,725 INFO L93 Difference]: Finished difference Result 7452 states and 25924 transitions. [2022-01-28 13:29:02,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:29:02,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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 168 [2022-01-28 13:29:02,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:02,764 INFO L225 Difference]: With dead ends: 7452 [2022-01-28 13:29:02,764 INFO L226 Difference]: Without dead ends: 6644 [2022-01-28 13:29:02,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:29:02,765 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:02,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 615 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:29:02,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2022-01-28 13:29:02,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6639. [2022-01-28 13:29:02,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6638 states have (on average 3.5412774932208495) internal successors, (23507), 6638 states have internal predecessors, (23507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 23507 transitions. [2022-01-28 13:29:02,987 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 23507 transitions. Word has length 168 [2022-01-28 13:29:02,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:02,987 INFO L470 AbstractCegarLoop]: Abstraction has 6639 states and 23507 transitions. [2022-01-28 13:29:02,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:02,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 23507 transitions. [2022-01-28 13:29:03,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-28 13:29:03,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:03,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:03,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 13:29:03,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:03,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:03,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1179599516, now seen corresponding path program 1 times [2022-01-28 13:29:03,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:03,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900727596] [2022-01-28 13:29:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:03,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:29:03,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:03,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900727596] [2022-01-28 13:29:03,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900727596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:03,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:03,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:29:03,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18026467] [2022-01-28 13:29:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:03,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:29:03,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:29:03,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:29:03,214 INFO L87 Difference]: Start difference. First operand 6639 states and 23507 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:03,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:03,363 INFO L93 Difference]: Finished difference Result 8112 states and 28002 transitions. [2022-01-28 13:29:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 13:29:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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 175 [2022-01-28 13:29:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:03,403 INFO L225 Difference]: With dead ends: 8112 [2022-01-28 13:29:03,403 INFO L226 Difference]: Without dead ends: 6645 [2022-01-28 13:29:03,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:29:03,408 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 410 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:03,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 554 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:29:03,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2022-01-28 13:29:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 6640. [2022-01-28 13:29:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 3.5408947130591955) internal successors, (23508), 6639 states have internal predecessors, (23508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 23508 transitions. [2022-01-28 13:29:03,615 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 23508 transitions. Word has length 175 [2022-01-28 13:29:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:03,616 INFO L470 AbstractCegarLoop]: Abstraction has 6640 states and 23508 transitions. [2022-01-28 13:29:03,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 23508 transitions. [2022-01-28 13:29:03,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:03,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:03,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:03,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 13:29:03,639 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1706711251, now seen corresponding path program 1 times [2022-01-28 13:29:03,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:03,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003167268] [2022-01-28 13:29:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:03,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:04,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:04,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003167268] [2022-01-28 13:29:04,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003167268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:04,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:04,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:04,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123285454] [2022-01-28 13:29:04,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:04,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:04,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:04,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:04,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:04,546 INFO L87 Difference]: Start difference. First operand 6640 states and 23508 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:05,331 INFO L93 Difference]: Finished difference Result 14626 states and 52262 transitions. [2022-01-28 13:29:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:05,332 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:05,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:05,395 INFO L225 Difference]: With dead ends: 14626 [2022-01-28 13:29:05,395 INFO L226 Difference]: Without dead ends: 14476 [2022-01-28 13:29:05,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-01-28 13:29:05,401 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 605 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:05,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2864 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:29:05,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14476 states. [2022-01-28 13:29:05,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14476 to 7934. [2022-01-28 13:29:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7934 states, 7933 states have (on average 3.4975419135257786) internal successors, (27746), 7933 states have internal predecessors, (27746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 27746 transitions. [2022-01-28 13:29:05,705 INFO L78 Accepts]: Start accepts. Automaton has 7934 states and 27746 transitions. Word has length 182 [2022-01-28 13:29:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:05,706 INFO L470 AbstractCegarLoop]: Abstraction has 7934 states and 27746 transitions. [2022-01-28 13:29:05,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:05,706 INFO L276 IsEmpty]: Start isEmpty. Operand 7934 states and 27746 transitions. [2022-01-28 13:29:05,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:05,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:05,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:05,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 13:29:05,733 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:05,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:05,735 INFO L85 PathProgramCache]: Analyzing trace with hash -243046637, now seen corresponding path program 2 times [2022-01-28 13:29:05,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:05,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552721111] [2022-01-28 13:29:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:05,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:06,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:06,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552721111] [2022-01-28 13:29:06,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552721111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:06,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:06,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:06,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13351033] [2022-01-28 13:29:06,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:06,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:06,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:06,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:06,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:06,330 INFO L87 Difference]: Start difference. First operand 7934 states and 27746 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:06,962 INFO L93 Difference]: Finished difference Result 14222 states and 50838 transitions. [2022-01-28 13:29:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:07,004 INFO L225 Difference]: With dead ends: 14222 [2022-01-28 13:29:07,004 INFO L226 Difference]: Without dead ends: 14072 [2022-01-28 13:29:07,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:07,005 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 463 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:07,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2721 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:07,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14072 states. [2022-01-28 13:29:07,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14072 to 8942. [2022-01-28 13:29:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8941 states have (on average 3.486858293255788) internal successors, (31176), 8941 states have internal predecessors, (31176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 31176 transitions. [2022-01-28 13:29:07,274 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 31176 transitions. Word has length 182 [2022-01-28 13:29:07,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:07,275 INFO L470 AbstractCegarLoop]: Abstraction has 8942 states and 31176 transitions. [2022-01-28 13:29:07,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:07,275 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 31176 transitions. [2022-01-28 13:29:07,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:07,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:07,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:07,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 13:29:07,295 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:07,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:07,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1793467055, now seen corresponding path program 3 times [2022-01-28 13:29:07,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:07,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163244646] [2022-01-28 13:29:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:07,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:07,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:07,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163244646] [2022-01-28 13:29:07,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163244646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:07,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:07,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:07,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205755008] [2022-01-28 13:29:07,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:07,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:07,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:07,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:07,888 INFO L87 Difference]: Start difference. First operand 8942 states and 31176 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:08,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:08,557 INFO L93 Difference]: Finished difference Result 15685 states and 55678 transitions. [2022-01-28 13:29:08,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:08,558 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:08,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:08,600 INFO L225 Difference]: With dead ends: 15685 [2022-01-28 13:29:08,600 INFO L226 Difference]: Without dead ends: 15535 [2022-01-28 13:29:08,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-01-28 13:29:08,601 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 645 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:08,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 2755 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:29:08,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15535 states. [2022-01-28 13:29:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15535 to 9208. [2022-01-28 13:29:08,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-01-28 13:29:08,819 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-01-28 13:29:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:08,820 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-01-28 13:29:08,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-01-28 13:29:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:08,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:08,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:08,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 13:29:08,840 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:08,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:08,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1762356665, now seen corresponding path program 4 times [2022-01-28 13:29:08,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:08,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772323083] [2022-01-28 13:29:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:08,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:09,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:09,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772323083] [2022-01-28 13:29:09,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772323083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:09,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:09,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:09,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677059998] [2022-01-28 13:29:09,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:09,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:09,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:09,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:09,632 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:10,191 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-01-28 13:29:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:10,230 INFO L225 Difference]: With dead ends: 15244 [2022-01-28 13:29:10,231 INFO L226 Difference]: Without dead ends: 15094 [2022-01-28 13:29:10,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-01-28 13:29:10,232 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 577 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:10,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2576 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:10,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-01-28 13:29:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-01-28 13:29:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-01-28 13:29:10,457 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-01-28 13:29:10,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:10,458 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-01-28 13:29:10,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-01-28 13:29:10,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:10,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:10,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:10,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 13:29:10,477 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:10,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash -988028945, now seen corresponding path program 5 times [2022-01-28 13:29:10,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:10,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686798478] [2022-01-28 13:29:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:10,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:10,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:10,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686798478] [2022-01-28 13:29:10,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686798478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:10,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:10,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:10,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121813507] [2022-01-28 13:29:10,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:10,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:10,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:10,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:10,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:10,938 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:11,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:11,492 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-01-28 13:29:11,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:11,493 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:11,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:11,533 INFO L225 Difference]: With dead ends: 15244 [2022-01-28 13:29:11,534 INFO L226 Difference]: Without dead ends: 15094 [2022-01-28 13:29:11,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:11,534 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 539 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:11,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2571 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:11,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-01-28 13:29:11,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-01-28 13:29:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:11,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-01-28 13:29:11,763 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-01-28 13:29:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:11,763 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-01-28 13:29:11,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:11,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-01-28 13:29:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:11,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:11,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:11,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 13:29:11,780 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:11,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1830217275, now seen corresponding path program 6 times [2022-01-28 13:29:11,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:11,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026528534] [2022-01-28 13:29:11,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:11,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:12,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:12,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026528534] [2022-01-28 13:29:12,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026528534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:12,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:12,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:12,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99120278] [2022-01-28 13:29:12,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:12,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:12,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:12,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:12,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:12,530 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:13,148 INFO L93 Difference]: Finished difference Result 16354 states and 58195 transitions. [2022-01-28 13:29:13,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:13,148 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:13,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:13,194 INFO L225 Difference]: With dead ends: 16354 [2022-01-28 13:29:13,195 INFO L226 Difference]: Without dead ends: 16204 [2022-01-28 13:29:13,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-01-28 13:29:13,196 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 503 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:13,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 2582 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:29:13,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16204 states. [2022-01-28 13:29:13,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16204 to 9320. [2022-01-28 13:29:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9320 states, 9319 states have (on average 3.495546732482026) internal successors, (32575), 9319 states have internal predecessors, (32575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:13,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 32575 transitions. [2022-01-28 13:29:13,446 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 32575 transitions. Word has length 182 [2022-01-28 13:29:13,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:13,446 INFO L470 AbstractCegarLoop]: Abstraction has 9320 states and 32575 transitions. [2022-01-28 13:29:13,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 32575 transitions. [2022-01-28 13:29:13,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:13,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:13,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:13,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-28 13:29:13,466 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:13,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:13,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1356367291, now seen corresponding path program 7 times [2022-01-28 13:29:13,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:13,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821419408] [2022-01-28 13:29:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:13,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:13,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:13,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821419408] [2022-01-28 13:29:13,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821419408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:13,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:13,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:13,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924726311] [2022-01-28 13:29:13,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:13,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:13,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:13,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:13,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:13,914 INFO L87 Difference]: Start difference. First operand 9320 states and 32575 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:14,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:14,552 INFO L93 Difference]: Finished difference Result 15118 states and 54397 transitions. [2022-01-28 13:29:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:14,553 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:14,595 INFO L225 Difference]: With dead ends: 15118 [2022-01-28 13:29:14,595 INFO L226 Difference]: Without dead ends: 14896 [2022-01-28 13:29:14,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:14,596 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 350 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:14,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2988 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:29:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14896 states. [2022-01-28 13:29:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14896 to 9504. [2022-01-28 13:29:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9504 states, 9503 states have (on average 3.500473534673261) internal successors, (33265), 9503 states have internal predecessors, (33265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9504 states to 9504 states and 33265 transitions. [2022-01-28 13:29:14,811 INFO L78 Accepts]: Start accepts. Automaton has 9504 states and 33265 transitions. Word has length 182 [2022-01-28 13:29:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:14,811 INFO L470 AbstractCegarLoop]: Abstraction has 9504 states and 33265 transitions. [2022-01-28 13:29:14,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 9504 states and 33265 transitions. [2022-01-28 13:29:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:14,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:14,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:14,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-28 13:29:14,829 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:14,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:14,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2099447355, now seen corresponding path program 8 times [2022-01-28 13:29:14,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:14,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404075607] [2022-01-28 13:29:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:14,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:15,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:15,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404075607] [2022-01-28 13:29:15,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404075607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:15,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:15,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:15,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644765962] [2022-01-28 13:29:15,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:15,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:15,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:15,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:15,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:15,336 INFO L87 Difference]: Start difference. First operand 9504 states and 33265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:15,962 INFO L93 Difference]: Finished difference Result 16088 states and 57607 transitions. [2022-01-28 13:29:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:16,012 INFO L225 Difference]: With dead ends: 16088 [2022-01-28 13:29:16,012 INFO L226 Difference]: Without dead ends: 15938 [2022-01-28 13:29:16,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-01-28 13:29:16,013 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 537 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:16,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 2245 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15938 states. [2022-01-28 13:29:16,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15938 to 9568. [2022-01-28 13:29:16,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-01-28 13:29:16,303 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-01-28 13:29:16,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:16,304 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-01-28 13:29:16,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:16,304 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-01-28 13:29:16,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:16,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:16,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:16,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-28 13:29:16,323 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1387220523, now seen corresponding path program 9 times [2022-01-28 13:29:16,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:16,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200547895] [2022-01-28 13:29:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:16,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:16,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:16,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200547895] [2022-01-28 13:29:16,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200547895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:16,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:16,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:16,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600566974] [2022-01-28 13:29:16,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:16,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:16,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:16,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:16,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:16,804 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:17,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:17,512 INFO L93 Difference]: Finished difference Result 15772 states and 56589 transitions. [2022-01-28 13:29:17,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:17,513 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:17,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:17,555 INFO L225 Difference]: With dead ends: 15772 [2022-01-28 13:29:17,555 INFO L226 Difference]: Without dead ends: 15622 [2022-01-28 13:29:17,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-01-28 13:29:17,556 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 458 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:17,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2624 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-28 13:29:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-01-28 13:29:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 9568. [2022-01-28 13:29:17,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-01-28 13:29:17,822 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-01-28 13:29:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:17,822 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-01-28 13:29:17,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-01-28 13:29:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:17,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:17,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:17,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-28 13:29:17,844 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:17,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:17,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1183078429, now seen corresponding path program 10 times [2022-01-28 13:29:17,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:17,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180547109] [2022-01-28 13:29:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:17,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:18,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:18,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:18,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180547109] [2022-01-28 13:29:18,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180547109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:18,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:18,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:18,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371936229] [2022-01-28 13:29:18,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:18,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:18,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:18,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:18,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:18,445 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:19,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:19,098 INFO L93 Difference]: Finished difference Result 15732 states and 56439 transitions. [2022-01-28 13:29:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-28 13:29:19,098 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:19,144 INFO L225 Difference]: With dead ends: 15732 [2022-01-28 13:29:19,144 INFO L226 Difference]: Without dead ends: 15582 [2022-01-28 13:29:19,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:19,145 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 451 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:19,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2539 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:29:19,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15582 states. [2022-01-28 13:29:19,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15582 to 9568. [2022-01-28 13:29:19,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-01-28 13:29:19,432 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-01-28 13:29:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:19,432 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-01-28 13:29:19,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-01-28 13:29:19,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:19,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:19,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:19,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-28 13:29:19,483 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:19,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1817055227, now seen corresponding path program 11 times [2022-01-28 13:29:19,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:19,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107362738] [2022-01-28 13:29:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:19,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:19,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:19,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107362738] [2022-01-28 13:29:19,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107362738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:19,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:19,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:19,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658388385] [2022-01-28 13:29:19,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:19,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:19,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:19,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:19,938 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:20,440 INFO L93 Difference]: Finished difference Result 14869 states and 53304 transitions. [2022-01-28 13:29:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:20,477 INFO L225 Difference]: With dead ends: 14869 [2022-01-28 13:29:20,478 INFO L226 Difference]: Without dead ends: 14719 [2022-01-28 13:29:20,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:20,481 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 343 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:20,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2566 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:20,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14719 states. [2022-01-28 13:29:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14719 to 9792. [2022-01-28 13:29:20,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:20,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-01-28 13:29:20,671 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-01-28 13:29:20,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:20,671 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-01-28 13:29:20,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-01-28 13:29:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:20,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:20,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:20,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-28 13:29:20,694 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:20,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:20,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2063128839, now seen corresponding path program 12 times [2022-01-28 13:29:20,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:20,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083762999] [2022-01-28 13:29:20,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:20,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:21,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:21,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083762999] [2022-01-28 13:29:21,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083762999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:21,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:21,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:21,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547331108] [2022-01-28 13:29:21,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:21,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:21,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:21,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:21,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:21,111 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:21,648 INFO L93 Difference]: Finished difference Result 14770 states and 53097 transitions. [2022-01-28 13:29:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:21,648 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:21,684 INFO L225 Difference]: With dead ends: 14770 [2022-01-28 13:29:21,684 INFO L226 Difference]: Without dead ends: 14548 [2022-01-28 13:29:21,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:21,687 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 489 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:21,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2262 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:21,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2022-01-28 13:29:21,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 9792. [2022-01-28 13:29:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:21,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-01-28 13:29:21,868 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-01-28 13:29:21,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:21,868 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-01-28 13:29:21,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-01-28 13:29:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:21,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:21,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:21,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-28 13:29:21,884 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1986285691, now seen corresponding path program 13 times [2022-01-28 13:29:21,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:21,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050261239] [2022-01-28 13:29:21,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:21,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:22,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:22,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050261239] [2022-01-28 13:29:22,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050261239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:22,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:22,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:22,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868039138] [2022-01-28 13:29:22,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:22,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:22,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:22,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:22,342 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:22,893 INFO L93 Difference]: Finished difference Result 15499 states and 55404 transitions. [2022-01-28 13:29:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:22,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:22,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:22,976 INFO L225 Difference]: With dead ends: 15499 [2022-01-28 13:29:22,976 INFO L226 Difference]: Without dead ends: 15349 [2022-01-28 13:29:22,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:22,977 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 407 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:22,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2704 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:29:23,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15349 states. [2022-01-28 13:29:23,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15349 to 9897. [2022-01-28 13:29:23,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9897 states, 9896 states have (on average 3.5198059822150363) internal successors, (34832), 9896 states have internal predecessors, (34832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9897 states to 9897 states and 34832 transitions. [2022-01-28 13:29:23,197 INFO L78 Accepts]: Start accepts. Automaton has 9897 states and 34832 transitions. Word has length 182 [2022-01-28 13:29:23,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:23,198 INFO L470 AbstractCegarLoop]: Abstraction has 9897 states and 34832 transitions. [2022-01-28 13:29:23,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9897 states and 34832 transitions. [2022-01-28 13:29:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:23,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:23,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:23,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-28 13:29:23,217 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:23,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1909051591, now seen corresponding path program 14 times [2022-01-28 13:29:23,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:23,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666936636] [2022-01-28 13:29:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:23,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:23,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:23,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666936636] [2022-01-28 13:29:23,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666936636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:23,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:23,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:23,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545629516] [2022-01-28 13:29:23,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:23,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:23,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:23,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:23,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:23,698 INFO L87 Difference]: Start difference. First operand 9897 states and 34832 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:24,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:24,200 INFO L93 Difference]: Finished difference Result 15868 states and 56775 transitions. [2022-01-28 13:29:24,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:24,201 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:24,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:24,239 INFO L225 Difference]: With dead ends: 15868 [2022-01-28 13:29:24,239 INFO L226 Difference]: Without dead ends: 15718 [2022-01-28 13:29:24,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:24,240 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 458 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:24,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2504 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15718 states. [2022-01-28 13:29:24,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15718 to 9792. [2022-01-28 13:29:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-01-28 13:29:24,439 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-01-28 13:29:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:24,439 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-01-28 13:29:24,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-01-28 13:29:24,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:24,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:24,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:24,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-28 13:29:24,456 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:24,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:24,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1735467003, now seen corresponding path program 15 times [2022-01-28 13:29:24,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:24,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372495412] [2022-01-28 13:29:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:24,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:24,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:24,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:24,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372495412] [2022-01-28 13:29:24,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372495412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:24,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:24,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:24,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409959294] [2022-01-28 13:29:24,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:24,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:24,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:24,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:24,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:24,827 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:25,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:25,287 INFO L93 Difference]: Finished difference Result 15130 states and 54471 transitions. [2022-01-28 13:29:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:25,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:25,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:25,326 INFO L225 Difference]: With dead ends: 15130 [2022-01-28 13:29:25,326 INFO L226 Difference]: Without dead ends: 14908 [2022-01-28 13:29:25,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:25,327 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 374 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:25,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2317 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:25,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2022-01-28 13:29:25,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 9824. [2022-01-28 13:29:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9824 states, 9823 states have (on average 3.512674335742645) internal successors, (34505), 9823 states have internal predecessors, (34505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:25,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9824 states to 9824 states and 34505 transitions. [2022-01-28 13:29:25,519 INFO L78 Accepts]: Start accepts. Automaton has 9824 states and 34505 transitions. Word has length 182 [2022-01-28 13:29:25,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:25,519 INFO L470 AbstractCegarLoop]: Abstraction has 9824 states and 34505 transitions. [2022-01-28 13:29:25,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 9824 states and 34505 transitions. [2022-01-28 13:29:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:25,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:25,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:25,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-28 13:29:25,535 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:25,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:25,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1722757253, now seen corresponding path program 16 times [2022-01-28 13:29:25,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552951525] [2022-01-28 13:29:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:25,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:25,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:25,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552951525] [2022-01-28 13:29:25,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552951525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:25,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:25,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:25,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315522522] [2022-01-28 13:29:25,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:25,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:25,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:25,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:25,973 INFO L87 Difference]: Start difference. First operand 9824 states and 34505 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:26,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:26,473 INFO L93 Difference]: Finished difference Result 15598 states and 56025 transitions. [2022-01-28 13:29:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:26,473 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:26,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:26,513 INFO L225 Difference]: With dead ends: 15598 [2022-01-28 13:29:26,513 INFO L226 Difference]: Without dead ends: 15448 [2022-01-28 13:29:26,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:26,513 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 528 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:26,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 1932 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:26,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2022-01-28 13:29:26,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 9792. [2022-01-28 13:29:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-01-28 13:29:26,713 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-01-28 13:29:26,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:26,713 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-01-28 13:29:26,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:26,713 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-01-28 13:29:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:26,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:26,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:26,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-28 13:29:26,730 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 977182485, now seen corresponding path program 17 times [2022-01-28 13:29:26,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:26,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589037987] [2022-01-28 13:29:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:26,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:27,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:27,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589037987] [2022-01-28 13:29:27,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589037987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:27,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:27,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:27,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530729244] [2022-01-28 13:29:27,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:27,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:27,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:27,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:27,162 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:27,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:27,643 INFO L93 Difference]: Finished difference Result 15282 states and 54634 transitions. [2022-01-28 13:29:27,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:27,643 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:27,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:27,688 INFO L225 Difference]: With dead ends: 15282 [2022-01-28 13:29:27,688 INFO L226 Difference]: Without dead ends: 15132 [2022-01-28 13:29:27,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:27,689 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 352 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:27,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 2417 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:27,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15132 states. [2022-01-28 13:29:27,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15132 to 9582. [2022-01-28 13:29:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 3.5040183696900113) internal successors, (33572), 9581 states have internal predecessors, (33572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 33572 transitions. [2022-01-28 13:29:27,916 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 33572 transitions. Word has length 182 [2022-01-28 13:29:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:27,917 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 33572 transitions. [2022-01-28 13:29:27,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 33572 transitions. [2022-01-28 13:29:27,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:27,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:27,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:27,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-28 13:29:27,934 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:27,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2088446317, now seen corresponding path program 18 times [2022-01-28 13:29:27,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:27,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974449567] [2022-01-28 13:29:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:27,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:28,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:28,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974449567] [2022-01-28 13:29:28,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974449567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:28,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:28,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:28,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53725055] [2022-01-28 13:29:28,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:28,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:28,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:28,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:28,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:28,328 INFO L87 Difference]: Start difference. First operand 9582 states and 33572 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:29,183 INFO L93 Difference]: Finished difference Result 14888 states and 53562 transitions. [2022-01-28 13:29:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:29,186 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:29,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:29,223 INFO L225 Difference]: With dead ends: 14888 [2022-01-28 13:29:29,223 INFO L226 Difference]: Without dead ends: 14666 [2022-01-28 13:29:29,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-01-28 13:29:29,224 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 353 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:29,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2782 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-28 13:29:29,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-01-28 13:29:29,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 9518. [2022-01-28 13:29:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9518 states, 9517 states have (on average 3.499001786277188) internal successors, (33300), 9517 states have internal predecessors, (33300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:29,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9518 states to 9518 states and 33300 transitions. [2022-01-28 13:29:29,413 INFO L78 Accepts]: Start accepts. Automaton has 9518 states and 33300 transitions. Word has length 182 [2022-01-28 13:29:29,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:29,413 INFO L470 AbstractCegarLoop]: Abstraction has 9518 states and 33300 transitions. [2022-01-28 13:29:29,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:29,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9518 states and 33300 transitions. [2022-01-28 13:29:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:29,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:29,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:29,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-28 13:29:29,431 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:29,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:29,431 INFO L85 PathProgramCache]: Analyzing trace with hash -266734529, now seen corresponding path program 19 times [2022-01-28 13:29:29,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:29,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990179381] [2022-01-28 13:29:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:29,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:29,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:29,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990179381] [2022-01-28 13:29:29,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990179381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:29,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:29,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 13:29:29,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532908474] [2022-01-28 13:29:29,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:29,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 13:29:29,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:29,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 13:29:29,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 13:29:29,538 INFO L87 Difference]: Start difference. First operand 9518 states and 33300 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 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) [2022-01-28 13:29:29,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:29,615 INFO L93 Difference]: Finished difference Result 9244 states and 32213 transitions. [2022-01-28 13:29:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 13:29:29,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 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) Word has length 182 [2022-01-28 13:29:29,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:29,635 INFO L225 Difference]: With dead ends: 9244 [2022-01-28 13:29:29,635 INFO L226 Difference]: Without dead ends: 9244 [2022-01-28 13:29:29,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 13:29:29,637 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 43 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:29,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 246 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 13:29:29,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2022-01-28 13:29:29,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9244. [2022-01-28 13:29:29,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 9243 states have (on average 3.485123877528941) internal successors, (32213), 9243 states have internal predecessors, (32213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:29,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 32213 transitions. [2022-01-28 13:29:29,791 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 32213 transitions. Word has length 182 [2022-01-28 13:29:29,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:29,792 INFO L470 AbstractCegarLoop]: Abstraction has 9244 states and 32213 transitions. [2022-01-28 13:29:29,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 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) [2022-01-28 13:29:29,792 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 32213 transitions. [2022-01-28 13:29:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:29,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:29,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:29,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-28 13:29:29,807 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:29,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash 994364243, now seen corresponding path program 20 times [2022-01-28 13:29:29,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:29,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029950126] [2022-01-28 13:29:29,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:29,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:29,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:29,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029950126] [2022-01-28 13:29:29,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029950126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:29,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:29,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 13:29:29,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365373835] [2022-01-28 13:29:29,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:29,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-28 13:29:29,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-28 13:29:29,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 13:29:29,892 INFO L87 Difference]: Start difference. First operand 9244 states and 32213 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 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) [2022-01-28 13:29:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:29,968 INFO L93 Difference]: Finished difference Result 8392 states and 28671 transitions. [2022-01-28 13:29:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-28 13:29:29,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 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) Word has length 182 [2022-01-28 13:29:29,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:29,989 INFO L225 Difference]: With dead ends: 8392 [2022-01-28 13:29:29,990 INFO L226 Difference]: Without dead ends: 8392 [2022-01-28 13:29:29,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-28 13:29:29,990 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 15 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:29,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 269 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 13:29:30,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2022-01-28 13:29:30,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 8392. [2022-01-28 13:29:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 8391 states have (on average 3.4168752234537005) internal successors, (28671), 8391 states have internal predecessors, (28671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 28671 transitions. [2022-01-28 13:29:30,120 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 28671 transitions. Word has length 182 [2022-01-28 13:29:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:30,121 INFO L470 AbstractCegarLoop]: Abstraction has 8392 states and 28671 transitions. [2022-01-28 13:29:30,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 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) [2022-01-28 13:29:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 28671 transitions. [2022-01-28 13:29:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:30,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:30,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:30,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-28 13:29:30,136 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:30,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:30,136 INFO L85 PathProgramCache]: Analyzing trace with hash 418727083, now seen corresponding path program 21 times [2022-01-28 13:29:30,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:30,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18126302] [2022-01-28 13:29:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:30,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:30,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:30,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18126302] [2022-01-28 13:29:30,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18126302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:30,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:30,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:30,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930867514] [2022-01-28 13:29:30,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:30,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:30,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:30,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:30,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:30,546 INFO L87 Difference]: Start difference. First operand 8392 states and 28671 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:31,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:31,111 INFO L93 Difference]: Finished difference Result 10386 states and 35499 transitions. [2022-01-28 13:29:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:31,112 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:31,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:31,134 INFO L225 Difference]: With dead ends: 10386 [2022-01-28 13:29:31,134 INFO L226 Difference]: Without dead ends: 10236 [2022-01-28 13:29:31,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:31,136 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 291 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:31,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2377 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-01-28 13:29:31,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 8560. [2022-01-28 13:29:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.4192078513845074) internal successors, (29265), 8559 states have internal predecessors, (29265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29265 transitions. [2022-01-28 13:29:31,279 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29265 transitions. Word has length 182 [2022-01-28 13:29:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:31,280 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29265 transitions. [2022-01-28 13:29:31,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29265 transitions. [2022-01-28 13:29:31,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:31,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:31,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:31,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-28 13:29:31,294 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash 833510313, now seen corresponding path program 22 times [2022-01-28 13:29:31,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:31,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202828727] [2022-01-28 13:29:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:31,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:31,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:31,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202828727] [2022-01-28 13:29:31,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202828727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:31,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:31,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:31,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575104209] [2022-01-28 13:29:31,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:31,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:31,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:31,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:31,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:31,981 INFO L87 Difference]: Start difference. First operand 8560 states and 29265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:32,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:32,413 INFO L93 Difference]: Finished difference Result 10404 states and 35598 transitions. [2022-01-28 13:29:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:32,413 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:32,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:32,436 INFO L225 Difference]: With dead ends: 10404 [2022-01-28 13:29:32,436 INFO L226 Difference]: Without dead ends: 10218 [2022-01-28 13:29:32,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:32,440 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 476 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:32,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1989 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:32,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-01-28 13:29:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8536. [2022-01-28 13:29:32,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-01-28 13:29:32,588 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-01-28 13:29:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:32,588 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-01-28 13:29:32,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-01-28 13:29:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:32,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:32,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:32,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-28 13:29:32,603 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:32,603 INFO L85 PathProgramCache]: Analyzing trace with hash -700910965, now seen corresponding path program 23 times [2022-01-28 13:29:32,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:32,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949744376] [2022-01-28 13:29:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:32,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:33,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:33,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949744376] [2022-01-28 13:29:33,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949744376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:33,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:33,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:33,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771911599] [2022-01-28 13:29:33,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:33,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:33,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:33,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:33,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:33,198 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:33,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:33,592 INFO L93 Difference]: Finished difference Result 10566 states and 36099 transitions. [2022-01-28 13:29:33,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:33,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:33,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:33,614 INFO L225 Difference]: With dead ends: 10566 [2022-01-28 13:29:33,614 INFO L226 Difference]: Without dead ends: 10416 [2022-01-28 13:29:33,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:33,615 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 279 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:33,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2699 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-01-28 13:29:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 8566. [2022-01-28 13:29:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8566 states, 8565 states have (on average 3.422416812609457) internal successors, (29313), 8565 states have internal predecessors, (29313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:33,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8566 states to 8566 states and 29313 transitions. [2022-01-28 13:29:33,757 INFO L78 Accepts]: Start accepts. Automaton has 8566 states and 29313 transitions. Word has length 182 [2022-01-28 13:29:33,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:33,757 INFO L470 AbstractCegarLoop]: Abstraction has 8566 states and 29313 transitions. [2022-01-28 13:29:33,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:33,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8566 states and 29313 transitions. [2022-01-28 13:29:33,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:33,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:33,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:33,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-28 13:29:33,771 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:33,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:33,771 INFO L85 PathProgramCache]: Analyzing trace with hash -301280951, now seen corresponding path program 24 times [2022-01-28 13:29:33,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:33,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771245055] [2022-01-28 13:29:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:33,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:34,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:34,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771245055] [2022-01-28 13:29:34,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771245055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:34,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:34,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:34,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591895625] [2022-01-28 13:29:34,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:34,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:34,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:34,322 INFO L87 Difference]: Start difference. First operand 8566 states and 29313 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:34,712 INFO L93 Difference]: Finished difference Result 11160 states and 38145 transitions. [2022-01-28 13:29:34,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:34,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:34,738 INFO L225 Difference]: With dead ends: 11160 [2022-01-28 13:29:34,738 INFO L226 Difference]: Without dead ends: 11010 [2022-01-28 13:29:34,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:34,739 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 514 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:34,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 2045 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:34,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-01-28 13:29:34,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8536. [2022-01-28 13:29:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:34,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-01-28 13:29:34,899 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-01-28 13:29:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:34,900 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-01-28 13:29:34,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:34,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-01-28 13:29:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:34,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:34,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:34,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-28 13:29:34,915 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:34,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:34,915 INFO L85 PathProgramCache]: Analyzing trace with hash -951729653, now seen corresponding path program 25 times [2022-01-28 13:29:34,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:34,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761917891] [2022-01-28 13:29:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:34,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:35,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:35,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761917891] [2022-01-28 13:29:35,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761917891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:35,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:35,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:35,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936464912] [2022-01-28 13:29:35,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:35,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:35,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:35,368 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:35,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:35,808 INFO L93 Difference]: Finished difference Result 10584 states and 36285 transitions. [2022-01-28 13:29:35,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:35,833 INFO L225 Difference]: With dead ends: 10584 [2022-01-28 13:29:35,833 INFO L226 Difference]: Without dead ends: 10398 [2022-01-28 13:29:35,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:35,833 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 281 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:35,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2495 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:35,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-01-28 13:29:35,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 8552. [2022-01-28 13:29:35,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4203017190971816) internal successors, (29247), 8551 states have internal predecessors, (29247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29247 transitions. [2022-01-28 13:29:35,991 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29247 transitions. Word has length 182 [2022-01-28 13:29:35,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:35,991 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29247 transitions. [2022-01-28 13:29:35,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29247 transitions. [2022-01-28 13:29:36,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:36,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:36,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:36,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-28 13:29:36,007 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:36,007 INFO L85 PathProgramCache]: Analyzing trace with hash -114986613, now seen corresponding path program 26 times [2022-01-28 13:29:36,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:36,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103686384] [2022-01-28 13:29:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:36,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:36,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:36,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103686384] [2022-01-28 13:29:36,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103686384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:36,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:36,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:36,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141161778] [2022-01-28 13:29:36,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:36,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:36,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:36,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:36,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:36,509 INFO L87 Difference]: Start difference. First operand 8552 states and 29247 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:36,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:36,872 INFO L93 Difference]: Finished difference Result 11160 states and 38220 transitions. [2022-01-28 13:29:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:36,872 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:36,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:36,901 INFO L225 Difference]: With dead ends: 11160 [2022-01-28 13:29:36,901 INFO L226 Difference]: Without dead ends: 11010 [2022-01-28 13:29:36,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:36,905 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 469 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:36,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2313 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:36,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-01-28 13:29:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8528. [2022-01-28 13:29:37,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:37,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-01-28 13:29:37,076 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-01-28 13:29:37,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:37,076 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-01-28 13:29:37,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:37,076 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-01-28 13:29:37,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:37,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:37,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:37,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-28 13:29:37,091 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:37,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:37,091 INFO L85 PathProgramCache]: Analyzing trace with hash -922837013, now seen corresponding path program 27 times [2022-01-28 13:29:37,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:37,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560924117] [2022-01-28 13:29:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:37,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:37,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:37,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560924117] [2022-01-28 13:29:37,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560924117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:37,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:37,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:37,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931687834] [2022-01-28 13:29:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:37,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:37,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:37,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:37,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:37,514 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:37,949 INFO L93 Difference]: Finished difference Result 10698 states and 36474 transitions. [2022-01-28 13:29:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:37,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:37,974 INFO L225 Difference]: With dead ends: 10698 [2022-01-28 13:29:37,974 INFO L226 Difference]: Without dead ends: 10548 [2022-01-28 13:29:37,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:37,975 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 444 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:37,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2424 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-01-28 13:29:38,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 8588. [2022-01-28 13:29:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 3.420868755094911) internal successors, (29375), 8587 states have internal predecessors, (29375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 29375 transitions. [2022-01-28 13:29:38,147 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 29375 transitions. Word has length 182 [2022-01-28 13:29:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:38,147 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 29375 transitions. [2022-01-28 13:29:38,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 29375 transitions. [2022-01-28 13:29:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:38,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:38,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:38,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-28 13:29:38,162 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:38,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash -523206999, now seen corresponding path program 28 times [2022-01-28 13:29:38,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:38,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967472789] [2022-01-28 13:29:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:38,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:38,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:38,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967472789] [2022-01-28 13:29:38,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967472789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:38,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:38,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:38,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089941939] [2022-01-28 13:29:38,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:38,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:38,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:38,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:38,611 INFO L87 Difference]: Start difference. First operand 8588 states and 29375 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:39,042 INFO L93 Difference]: Finished difference Result 11382 states and 38790 transitions. [2022-01-28 13:29:39,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:39,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:39,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:39,066 INFO L225 Difference]: With dead ends: 11382 [2022-01-28 13:29:39,066 INFO L226 Difference]: Without dead ends: 11232 [2022-01-28 13:29:39,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:39,067 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 446 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:39,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2522 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11232 states. [2022-01-28 13:29:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11232 to 8558. [2022-01-28 13:29:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8557 states have (on average 3.4176697440691832) internal successors, (29245), 8557 states have internal predecessors, (29245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:39,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 29245 transitions. [2022-01-28 13:29:39,210 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 29245 transitions. Word has length 182 [2022-01-28 13:29:39,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:39,211 INFO L470 AbstractCegarLoop]: Abstraction has 8558 states and 29245 transitions. [2022-01-28 13:29:39,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:39,211 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 29245 transitions. [2022-01-28 13:29:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:39,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:39,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:39,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-28 13:29:39,224 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:39,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:39,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2124387601, now seen corresponding path program 29 times [2022-01-28 13:29:39,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:39,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034781080] [2022-01-28 13:29:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:39,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:39,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:39,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:39,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034781080] [2022-01-28 13:29:39,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034781080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:39,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:39,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:39,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442928091] [2022-01-28 13:29:39,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:39,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:39,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:39,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:39,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:39,706 INFO L87 Difference]: Start difference. First operand 8558 states and 29245 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:40,157 INFO L93 Difference]: Finished difference Result 11484 states and 39204 transitions. [2022-01-28 13:29:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:40,158 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:40,185 INFO L225 Difference]: With dead ends: 11484 [2022-01-28 13:29:40,185 INFO L226 Difference]: Without dead ends: 11334 [2022-01-28 13:29:40,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:40,186 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 457 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:40,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2216 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-01-28 13:29:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8528. [2022-01-28 13:29:40,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:40,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-01-28 13:29:40,364 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-01-28 13:29:40,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:40,365 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-01-28 13:29:40,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-01-28 13:29:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:40,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:40,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:40,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-28 13:29:40,380 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:40,380 INFO L85 PathProgramCache]: Analyzing trace with hash 306501481, now seen corresponding path program 30 times [2022-01-28 13:29:40,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:40,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211203718] [2022-01-28 13:29:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:40,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:40,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:40,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211203718] [2022-01-28 13:29:40,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211203718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:40,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:40,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:40,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262213524] [2022-01-28 13:29:40,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:40,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:40,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:40,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:40,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:40,870 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:41,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:41,246 INFO L93 Difference]: Finished difference Result 10608 states and 36399 transitions. [2022-01-28 13:29:41,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:41,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:41,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:41,268 INFO L225 Difference]: With dead ends: 10608 [2022-01-28 13:29:41,268 INFO L226 Difference]: Without dead ends: 10422 [2022-01-28 13:29:41,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:41,269 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 318 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:41,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 2365 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10422 states. [2022-01-28 13:29:41,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10422 to 8560. [2022-01-28 13:29:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.419675195700432) internal successors, (29269), 8559 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29269 transitions. [2022-01-28 13:29:41,502 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29269 transitions. Word has length 182 [2022-01-28 13:29:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:41,503 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29269 transitions. [2022-01-28 13:29:41,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29269 transitions. [2022-01-28 13:29:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:41,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:41,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:41,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-28 13:29:41,531 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:41,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:41,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1143244521, now seen corresponding path program 31 times [2022-01-28 13:29:41,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:41,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087824010] [2022-01-28 13:29:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:41,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:42,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:42,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087824010] [2022-01-28 13:29:42,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087824010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:42,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:42,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:42,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766075177] [2022-01-28 13:29:42,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:42,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:42,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:42,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:42,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:42,024 INFO L87 Difference]: Start difference. First operand 8560 states and 29269 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:42,512 INFO L93 Difference]: Finished difference Result 11256 states and 38580 transitions. [2022-01-28 13:29:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:42,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:42,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:42,544 INFO L225 Difference]: With dead ends: 11256 [2022-01-28 13:29:42,545 INFO L226 Difference]: Without dead ends: 11106 [2022-01-28 13:29:42,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:42,545 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 358 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:42,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 2787 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2022-01-28 13:29:42,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 8544. [2022-01-28 13:29:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8544 states, 8543 states have (on average 3.418588317921105) internal successors, (29205), 8543 states have internal predecessors, (29205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8544 states to 8544 states and 29205 transitions. [2022-01-28 13:29:42,707 INFO L78 Accepts]: Start accepts. Automaton has 8544 states and 29205 transitions. Word has length 182 [2022-01-28 13:29:42,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:42,709 INFO L470 AbstractCegarLoop]: Abstraction has 8544 states and 29205 transitions. [2022-01-28 13:29:42,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 8544 states and 29205 transitions. [2022-01-28 13:29:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:42,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:42,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:42,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-28 13:29:42,724 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:42,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash -690422513, now seen corresponding path program 32 times [2022-01-28 13:29:42,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:42,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442847851] [2022-01-28 13:29:42,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:42,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:43,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:43,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442847851] [2022-01-28 13:29:43,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442847851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:43,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:43,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:43,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102080401] [2022-01-28 13:29:43,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:43,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:43,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:43,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:43,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:43,161 INFO L87 Difference]: Start difference. First operand 8544 states and 29205 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:43,619 INFO L93 Difference]: Finished difference Result 11358 states and 38919 transitions. [2022-01-28 13:29:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:43,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:43,644 INFO L225 Difference]: With dead ends: 11358 [2022-01-28 13:29:43,644 INFO L226 Difference]: Without dead ends: 11208 [2022-01-28 13:29:43,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:43,645 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 357 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:43,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2490 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:43,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2022-01-28 13:29:43,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 8520. [2022-01-28 13:29:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-01-28 13:29:43,797 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-01-28 13:29:43,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:43,797 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-01-28 13:29:43,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:43,797 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-01-28 13:29:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:43,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:43,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:43,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-28 13:29:43,811 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:43,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:43,811 INFO L85 PathProgramCache]: Analyzing trace with hash 501633739, now seen corresponding path program 33 times [2022-01-28 13:29:43,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:43,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875893419] [2022-01-28 13:29:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:43,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:44,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:44,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875893419] [2022-01-28 13:29:44,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875893419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:44,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:44,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:44,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024938841] [2022-01-28 13:29:44,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:44,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:44,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:44,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:44,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:44,231 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:44,605 INFO L93 Difference]: Finished difference Result 10690 states and 36444 transitions. [2022-01-28 13:29:44,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:44,605 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:44,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:44,628 INFO L225 Difference]: With dead ends: 10690 [2022-01-28 13:29:44,629 INFO L226 Difference]: Without dead ends: 10540 [2022-01-28 13:29:44,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2022-01-28 13:29:44,629 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 407 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:44,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2354 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2022-01-28 13:29:44,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 8820. [2022-01-28 13:29:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8820 states, 8819 states have (on average 3.409683637600635) internal successors, (30070), 8819 states have internal predecessors, (30070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 30070 transitions. [2022-01-28 13:29:44,779 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 30070 transitions. Word has length 182 [2022-01-28 13:29:44,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:44,779 INFO L470 AbstractCegarLoop]: Abstraction has 8820 states and 30070 transitions. [2022-01-28 13:29:44,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 30070 transitions. [2022-01-28 13:29:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:44,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:44,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:44,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-28 13:29:44,794 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:44,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:44,794 INFO L85 PathProgramCache]: Analyzing trace with hash 901263753, now seen corresponding path program 34 times [2022-01-28 13:29:44,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:44,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725331562] [2022-01-28 13:29:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:44,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:45,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:45,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725331562] [2022-01-28 13:29:45,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725331562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:45,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:45,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:45,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891060399] [2022-01-28 13:29:45,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:45,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:45,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:45,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:45,256 INFO L87 Difference]: Start difference. First operand 8820 states and 30070 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:45,620 INFO L93 Difference]: Finished difference Result 11550 states and 39376 transitions. [2022-01-28 13:29:45,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:45,620 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:45,646 INFO L225 Difference]: With dead ends: 11550 [2022-01-28 13:29:45,646 INFO L226 Difference]: Without dead ends: 11400 [2022-01-28 13:29:45,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:45,647 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 437 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:45,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2583 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-01-28 13:29:45,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 8790. [2022-01-28 13:29:45,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8790 states, 8789 states have (on average 3.406530890886335) internal successors, (29940), 8789 states have internal predecessors, (29940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8790 states to 8790 states and 29940 transitions. [2022-01-28 13:29:45,814 INFO L78 Accepts]: Start accepts. Automaton has 8790 states and 29940 transitions. Word has length 182 [2022-01-28 13:29:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:45,814 INFO L470 AbstractCegarLoop]: Abstraction has 8790 states and 29940 transitions. [2022-01-28 13:29:45,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 8790 states and 29940 transitions. [2022-01-28 13:29:45,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:45,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:45,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:45,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-28 13:29:45,829 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:45,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash -746108943, now seen corresponding path program 35 times [2022-01-28 13:29:45,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:45,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830504594] [2022-01-28 13:29:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:45,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:46,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:46,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830504594] [2022-01-28 13:29:46,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830504594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:46,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:46,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:46,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121382081] [2022-01-28 13:29:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:46,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:46,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:46,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:46,319 INFO L87 Difference]: Start difference. First operand 8790 states and 29940 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:46,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:46,789 INFO L93 Difference]: Finished difference Result 11685 states and 39866 transitions. [2022-01-28 13:29:46,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:46,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:46,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:46,829 INFO L225 Difference]: With dead ends: 11685 [2022-01-28 13:29:46,829 INFO L226 Difference]: Without dead ends: 11535 [2022-01-28 13:29:46,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:46,830 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 468 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:46,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2252 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-01-28 13:29:46,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 8760. [2022-01-28 13:29:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8760 states, 8759 states have (on average 3.406781596072611) internal successors, (29840), 8759 states have internal predecessors, (29840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:47,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8760 states to 8760 states and 29840 transitions. [2022-01-28 13:29:47,021 INFO L78 Accepts]: Start accepts. Automaton has 8760 states and 29840 transitions. Word has length 182 [2022-01-28 13:29:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:47,021 INFO L470 AbstractCegarLoop]: Abstraction has 8760 states and 29840 transitions. [2022-01-28 13:29:47,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8760 states and 29840 transitions. [2022-01-28 13:29:47,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:47,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:47,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:47,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-28 13:29:47,039 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:47,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1833174183, now seen corresponding path program 36 times [2022-01-28 13:29:47,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:47,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721157731] [2022-01-28 13:29:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:47,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:47,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:47,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:47,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721157731] [2022-01-28 13:29:47,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721157731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:47,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:47,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:47,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615579802] [2022-01-28 13:29:47,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:47,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:47,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:47,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:47,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:47,423 INFO L87 Difference]: Start difference. First operand 8760 states and 29840 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:47,907 INFO L93 Difference]: Finished difference Result 11454 states and 39104 transitions. [2022-01-28 13:29:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:47,908 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:47,935 INFO L225 Difference]: With dead ends: 11454 [2022-01-28 13:29:47,935 INFO L226 Difference]: Without dead ends: 11304 [2022-01-28 13:29:47,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:47,936 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 364 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:47,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 2555 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11304 states. [2022-01-28 13:29:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 8520. [2022-01-28 13:29:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:48,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-01-28 13:29:48,131 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-01-28 13:29:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:48,132 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-01-28 13:29:48,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:48,132 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-01-28 13:29:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:48,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:48,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:48,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-28 13:29:48,150 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash 371204619, now seen corresponding path program 37 times [2022-01-28 13:29:48,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:48,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476713719] [2022-01-28 13:29:48,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:48,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:48,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:48,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:48,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476713719] [2022-01-28 13:29:48,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476713719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:48,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:48,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:48,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313198541] [2022-01-28 13:29:48,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:48,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:48,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:48,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:48,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:48,520 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:48,802 INFO L93 Difference]: Finished difference Result 10600 states and 36369 transitions. [2022-01-28 13:29:48,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:48,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:48,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:48,824 INFO L225 Difference]: With dead ends: 10600 [2022-01-28 13:29:48,825 INFO L226 Difference]: Without dead ends: 10414 [2022-01-28 13:29:48,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-01-28 13:29:48,825 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 375 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:48,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 2154 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10414 states. [2022-01-28 13:29:48,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10414 to 8600. [2022-01-28 13:29:48,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8599 states have (on average 3.421211768810327) internal successors, (29419), 8599 states have internal predecessors, (29419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 29419 transitions. [2022-01-28 13:29:48,983 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 29419 transitions. Word has length 182 [2022-01-28 13:29:48,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:48,983 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 29419 transitions. [2022-01-28 13:29:48,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:48,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 29419 transitions. [2022-01-28 13:29:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:49,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:49,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:49,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-28 13:29:49,001 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1207947659, now seen corresponding path program 38 times [2022-01-28 13:29:49,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:49,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818852551] [2022-01-28 13:29:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:49,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:49,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:49,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:49,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818852551] [2022-01-28 13:29:49,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818852551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:49,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:49,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:49,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962647293] [2022-01-28 13:29:49,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:49,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:49,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:49,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:49,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:49,333 INFO L87 Difference]: Start difference. First operand 8600 states and 29419 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:49,673 INFO L93 Difference]: Finished difference Result 11396 states and 39060 transitions. [2022-01-28 13:29:49,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:49,673 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:49,698 INFO L225 Difference]: With dead ends: 11396 [2022-01-28 13:29:49,698 INFO L226 Difference]: Without dead ends: 11246 [2022-01-28 13:29:49,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:49,699 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 482 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:49,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 2410 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:49,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11246 states. [2022-01-28 13:29:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11246 to 8584. [2022-01-28 13:29:49,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 3.4201328206920656) internal successors, (29355), 8583 states have internal predecessors, (29355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 29355 transitions. [2022-01-28 13:29:49,843 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 29355 transitions. Word has length 182 [2022-01-28 13:29:49,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:49,844 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 29355 transitions. [2022-01-28 13:29:49,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 29355 transitions. [2022-01-28 13:29:49,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:49,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:49,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:49,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-28 13:29:49,858 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:49,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash -625719375, now seen corresponding path program 39 times [2022-01-28 13:29:49,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:49,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370160389] [2022-01-28 13:29:49,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:49,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:50,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:50,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370160389] [2022-01-28 13:29:50,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370160389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:50,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:50,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:50,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757759333] [2022-01-28 13:29:50,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:50,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:50,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:50,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:50,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:50,313 INFO L87 Difference]: Start difference. First operand 8584 states and 29355 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:50,750 INFO L93 Difference]: Finished difference Result 11545 states and 39541 transitions. [2022-01-28 13:29:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:50,751 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:50,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:50,775 INFO L225 Difference]: With dead ends: 11545 [2022-01-28 13:29:50,775 INFO L226 Difference]: Without dead ends: 11395 [2022-01-28 13:29:50,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:50,776 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 488 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:50,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2322 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11395 states. [2022-01-28 13:29:50,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11395 to 8568. [2022-01-28 13:29:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.4195167503209993) internal successors, (29295), 8567 states have internal predecessors, (29295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29295 transitions. [2022-01-28 13:29:50,922 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29295 transitions. Word has length 182 [2022-01-28 13:29:50,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:50,922 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29295 transitions. [2022-01-28 13:29:50,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:50,923 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29295 transitions. [2022-01-28 13:29:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:50,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:50,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:50,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-28 13:29:50,936 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash 473406569, now seen corresponding path program 40 times [2022-01-28 13:29:50,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:50,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639413861] [2022-01-28 13:29:50,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:50,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:51,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:51,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:51,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639413861] [2022-01-28 13:29:51,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639413861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:51,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:51,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:51,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645158537] [2022-01-28 13:29:51,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:51,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:51,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:51,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:51,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:51,493 INFO L87 Difference]: Start difference. First operand 8568 states and 29295 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:51,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:51,878 INFO L93 Difference]: Finished difference Result 11322 states and 38784 transitions. [2022-01-28 13:29:51,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:29:51,878 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:51,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:51,910 INFO L225 Difference]: With dead ends: 11322 [2022-01-28 13:29:51,911 INFO L226 Difference]: Without dead ends: 11172 [2022-01-28 13:29:51,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:51,918 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 384 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:51,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2464 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:51,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2022-01-28 13:29:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 8424. [2022-01-28 13:29:52,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8424 states, 8423 states have (on average 3.4190905853021487) internal successors, (28799), 8423 states have internal predecessors, (28799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:52,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 28799 transitions. [2022-01-28 13:29:52,099 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 28799 transitions. Word has length 182 [2022-01-28 13:29:52,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:52,101 INFO L470 AbstractCegarLoop]: Abstraction has 8424 states and 28799 transitions. [2022-01-28 13:29:52,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:52,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 28799 transitions. [2022-01-28 13:29:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:52,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:52,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:52,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-28 13:29:52,116 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:52,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1916046689, now seen corresponding path program 41 times [2022-01-28 13:29:52,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:52,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889013290] [2022-01-28 13:29:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:52,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:52,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:52,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889013290] [2022-01-28 13:29:52,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889013290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:52,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:52,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:52,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688368763] [2022-01-28 13:29:52,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:52,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:52,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:52,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:52,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:52,546 INFO L87 Difference]: Start difference. First operand 8424 states and 28799 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:52,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:52,824 INFO L93 Difference]: Finished difference Result 10282 states and 35153 transitions. [2022-01-28 13:29:52,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:52,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:52,858 INFO L225 Difference]: With dead ends: 10282 [2022-01-28 13:29:52,858 INFO L226 Difference]: Without dead ends: 10132 [2022-01-28 13:29:52,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-01-28 13:29:52,859 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 505 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:52,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1823 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:52,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10132 states. [2022-01-28 13:29:52,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10132 to 8528. [2022-01-28 13:29:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.420781048434385) internal successors, (29169), 8527 states have internal predecessors, (29169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:53,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29169 transitions. [2022-01-28 13:29:53,002 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29169 transitions. Word has length 182 [2022-01-28 13:29:53,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:53,002 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29169 transitions. [2022-01-28 13:29:53,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29169 transitions. [2022-01-28 13:29:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:53,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:53,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:53,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-28 13:29:53,016 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:53,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1501263459, now seen corresponding path program 42 times [2022-01-28 13:29:53,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:53,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649999118] [2022-01-28 13:29:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:53,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:53,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:53,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649999118] [2022-01-28 13:29:53,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649999118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:53,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:53,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:53,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478824160] [2022-01-28 13:29:53,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:53,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:53,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:53,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:53,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:53,358 INFO L87 Difference]: Start difference. First operand 8528 states and 29169 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:53,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:53,749 INFO L93 Difference]: Finished difference Result 10300 states and 35252 transitions. [2022-01-28 13:29:53,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:53,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:53,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:53,774 INFO L225 Difference]: With dead ends: 10300 [2022-01-28 13:29:53,774 INFO L226 Difference]: Without dead ends: 10114 [2022-01-28 13:29:53,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:53,775 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 416 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:53,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 2151 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:53,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2022-01-28 13:29:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 8504. [2022-01-28 13:29:53,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-01-28 13:29:53,929 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-01-28 13:29:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:53,929 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-01-28 13:29:53,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-01-28 13:29:53,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:53,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:53,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:53,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-28 13:29:53,944 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:53,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:53,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1259282559, now seen corresponding path program 43 times [2022-01-28 13:29:53,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:53,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616950624] [2022-01-28 13:29:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:53,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:54,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:54,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616950624] [2022-01-28 13:29:54,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616950624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:54,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:54,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:54,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347543132] [2022-01-28 13:29:54,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:54,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:54,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:54,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:54,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:54,343 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:54,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:54,687 INFO L93 Difference]: Finished difference Result 10462 states and 35753 transitions. [2022-01-28 13:29:54,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:54,687 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:54,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:54,712 INFO L225 Difference]: With dead ends: 10462 [2022-01-28 13:29:54,712 INFO L226 Difference]: Without dead ends: 10312 [2022-01-28 13:29:54,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:54,713 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 331 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:54,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2247 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10312 states. [2022-01-28 13:29:54,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10312 to 8534. [2022-01-28 13:29:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 3.4240009375366225) internal successors, (29217), 8533 states have internal predecessors, (29217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:54,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 29217 transitions. [2022-01-28 13:29:54,875 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 29217 transitions. Word has length 182 [2022-01-28 13:29:54,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:54,876 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 29217 transitions. [2022-01-28 13:29:54,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:54,876 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 29217 transitions. [2022-01-28 13:29:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:54,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:54,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:54,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-28 13:29:54,891 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:54,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:54,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1658912573, now seen corresponding path program 44 times [2022-01-28 13:29:54,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:54,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800227763] [2022-01-28 13:29:54,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:54,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:55,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:55,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:55,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800227763] [2022-01-28 13:29:55,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800227763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:55,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:55,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:55,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329724295] [2022-01-28 13:29:55,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:55,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:55,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:55,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:55,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:55,278 INFO L87 Difference]: Start difference. First operand 8534 states and 29217 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:55,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:55,581 INFO L93 Difference]: Finished difference Result 11056 states and 37799 transitions. [2022-01-28 13:29:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:55,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:55,607 INFO L225 Difference]: With dead ends: 11056 [2022-01-28 13:29:55,607 INFO L226 Difference]: Without dead ends: 10906 [2022-01-28 13:29:55,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:55,608 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 370 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:55,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 2135 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:55,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-01-28 13:29:55,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8504. [2022-01-28 13:29:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-01-28 13:29:55,837 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-01-28 13:29:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:55,837 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-01-28 13:29:55,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-01-28 13:29:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:55,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:55,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:55,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-28 13:29:55,852 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:55,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:55,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1008463871, now seen corresponding path program 45 times [2022-01-28 13:29:55,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:55,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602984895] [2022-01-28 13:29:55,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:55,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:56,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:56,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602984895] [2022-01-28 13:29:56,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602984895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:56,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:56,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:56,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572488266] [2022-01-28 13:29:56,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:56,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:56,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:56,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:56,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:56,235 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:56,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:56,618 INFO L93 Difference]: Finished difference Result 10480 states and 35939 transitions. [2022-01-28 13:29:56,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:56,618 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:56,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:56,641 INFO L225 Difference]: With dead ends: 10480 [2022-01-28 13:29:56,642 INFO L226 Difference]: Without dead ends: 10294 [2022-01-28 13:29:56,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:56,643 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 342 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:56,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2201 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10294 states. [2022-01-28 13:29:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10294 to 8520. [2022-01-28 13:29:56,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.4218805024063856) internal successors, (29151), 8519 states have internal predecessors, (29151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29151 transitions. [2022-01-28 13:29:56,781 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29151 transitions. Word has length 182 [2022-01-28 13:29:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:56,781 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29151 transitions. [2022-01-28 13:29:56,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29151 transitions. [2022-01-28 13:29:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:56,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:56,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:56,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-28 13:29:56,795 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:56,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:56,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1845206911, now seen corresponding path program 46 times [2022-01-28 13:29:56,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:56,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112960755] [2022-01-28 13:29:56,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:56,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:57,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:57,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:57,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112960755] [2022-01-28 13:29:57,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112960755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:57,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:57,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:57,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169444163] [2022-01-28 13:29:57,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:57,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:57,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:57,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:57,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:57,161 INFO L87 Difference]: Start difference. First operand 8520 states and 29151 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:57,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:57,492 INFO L93 Difference]: Finished difference Result 11056 states and 37874 transitions. [2022-01-28 13:29:57,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:57,492 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:57,515 INFO L225 Difference]: With dead ends: 11056 [2022-01-28 13:29:57,516 INFO L226 Difference]: Without dead ends: 10906 [2022-01-28 13:29:57,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:57,516 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 394 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:57,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 2054 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:29:57,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-01-28 13:29:57,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8496. [2022-01-28 13:29:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:57,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-01-28 13:29:57,661 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-01-28 13:29:57,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:57,662 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-01-28 13:29:57,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:57,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-01-28 13:29:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:57,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:57,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:57,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-28 13:29:57,675 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1037356511, now seen corresponding path program 47 times [2022-01-28 13:29:57,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:57,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76639023] [2022-01-28 13:29:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:57,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:58,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:58,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76639023] [2022-01-28 13:29:58,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76639023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:58,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:58,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:58,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58990383] [2022-01-28 13:29:58,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:58,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:58,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:58,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:58,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:58,094 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:58,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:58,552 INFO L93 Difference]: Finished difference Result 10594 states and 36128 transitions. [2022-01-28 13:29:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:58,579 INFO L225 Difference]: With dead ends: 10594 [2022-01-28 13:29:58,579 INFO L226 Difference]: Without dead ends: 10444 [2022-01-28 13:29:58,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:58,580 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 338 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:58,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 2390 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2022-01-28 13:29:58,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 8556. [2022-01-28 13:29:58,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8556 states, 8555 states have (on average 3.4224430157802455) internal successors, (29279), 8555 states have internal predecessors, (29279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 29279 transitions. [2022-01-28 13:29:58,752 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 29279 transitions. Word has length 182 [2022-01-28 13:29:58,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:58,752 INFO L470 AbstractCegarLoop]: Abstraction has 8556 states and 29279 transitions. [2022-01-28 13:29:58,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:58,752 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 29279 transitions. [2022-01-28 13:29:58,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:58,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:58,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:58,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-28 13:29:58,767 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:58,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:58,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1436986525, now seen corresponding path program 48 times [2022-01-28 13:29:58,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:58,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3858641] [2022-01-28 13:29:58,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:58,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:29:59,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:29:59,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:29:59,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3858641] [2022-01-28 13:29:59,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3858641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:29:59,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:29:59,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:29:59,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898052708] [2022-01-28 13:29:59,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:29:59,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:29:59,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:29:59,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:29:59,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:29:59,229 INFO L87 Difference]: Start difference. First operand 8556 states and 29279 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:59,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:29:59,629 INFO L93 Difference]: Finished difference Result 11278 states and 38444 transitions. [2022-01-28 13:29:59,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:29:59,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:29:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:29:59,658 INFO L225 Difference]: With dead ends: 11278 [2022-01-28 13:29:59,658 INFO L226 Difference]: Without dead ends: 11128 [2022-01-28 13:29:59,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:29:59,659 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 356 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:29:59,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 1993 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:29:59,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2022-01-28 13:29:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 8526. [2022-01-28 13:29:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8526 states, 8525 states have (on average 3.4192375366568917) internal successors, (29149), 8525 states have internal predecessors, (29149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:29:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8526 states to 8526 states and 29149 transitions. [2022-01-28 13:29:59,811 INFO L78 Accepts]: Start accepts. Automaton has 8526 states and 29149 transitions. Word has length 182 [2022-01-28 13:29:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:29:59,811 INFO L470 AbstractCegarLoop]: Abstraction has 8526 states and 29149 transitions. [2022-01-28 13:29:59,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:29:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8526 states and 29149 transitions. [2022-01-28 13:29:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:29:59,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:29:59,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:29:59,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-28 13:29:59,825 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:29:59,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:29:59,825 INFO L85 PathProgramCache]: Analyzing trace with hash -210386171, now seen corresponding path program 49 times [2022-01-28 13:29:59,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:29:59,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058397831] [2022-01-28 13:29:59,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:29:59,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:29:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:00,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:00,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058397831] [2022-01-28 13:30:00,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058397831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:00,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:00,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:00,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591705638] [2022-01-28 13:30:00,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:00,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:00,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:00,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:00,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:00,242 INFO L87 Difference]: Start difference. First operand 8526 states and 29149 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:00,742 INFO L93 Difference]: Finished difference Result 11380 states and 38858 transitions. [2022-01-28 13:30:00,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:30:00,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:00,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:00,767 INFO L225 Difference]: With dead ends: 11380 [2022-01-28 13:30:00,767 INFO L226 Difference]: Without dead ends: 11230 [2022-01-28 13:30:00,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:00,769 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 453 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:00,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 2249 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:30:00,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-01-28 13:30:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8496. [2022-01-28 13:30:00,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-01-28 13:30:00,945 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-01-28 13:30:00,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:00,946 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-01-28 13:30:00,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-01-28 13:30:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:00,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:00,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:00,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-28 13:30:00,962 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:00,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:00,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2028272291, now seen corresponding path program 50 times [2022-01-28 13:30:00,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:00,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165152050] [2022-01-28 13:30:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:00,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:01,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:01,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165152050] [2022-01-28 13:30:01,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165152050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:01,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:01,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:01,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909102465] [2022-01-28 13:30:01,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:01,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:01,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:01,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:01,353 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:01,734 INFO L93 Difference]: Finished difference Result 10504 states and 36053 transitions. [2022-01-28 13:30:01,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:30:01,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:01,781 INFO L225 Difference]: With dead ends: 10504 [2022-01-28 13:30:01,781 INFO L226 Difference]: Without dead ends: 10318 [2022-01-28 13:30:01,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2022-01-28 13:30:01,782 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 344 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:01,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 2629 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:30:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2022-01-28 13:30:01,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8528. [2022-01-28 13:30:01,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4212501465931746) internal successors, (29173), 8527 states have internal predecessors, (29173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:01,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29173 transitions. [2022-01-28 13:30:01,977 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29173 transitions. Word has length 182 [2022-01-28 13:30:01,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:01,977 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29173 transitions. [2022-01-28 13:30:01,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29173 transitions. [2022-01-28 13:30:01,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:01,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:01,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:01,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-28 13:30:01,992 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:01,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1191529251, now seen corresponding path program 51 times [2022-01-28 13:30:01,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:01,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030868312] [2022-01-28 13:30:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:01,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:02,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030868312] [2022-01-28 13:30:02,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030868312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:02,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:02,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:02,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233665250] [2022-01-28 13:30:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:02,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:02,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:02,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:02,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:02,414 INFO L87 Difference]: Start difference. First operand 8528 states and 29173 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:02,831 INFO L93 Difference]: Finished difference Result 11152 states and 38234 transitions. [2022-01-28 13:30:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:30:02,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:02,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:02,856 INFO L225 Difference]: With dead ends: 11152 [2022-01-28 13:30:02,856 INFO L226 Difference]: Without dead ends: 11002 [2022-01-28 13:30:02,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:02,857 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 439 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:02,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 2238 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:30:02,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2022-01-28 13:30:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 8512. [2022-01-28 13:30:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8512 states, 8511 states have (on average 3.420162143108918) internal successors, (29109), 8511 states have internal predecessors, (29109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:03,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8512 states to 8512 states and 29109 transitions. [2022-01-28 13:30:03,005 INFO L78 Accepts]: Start accepts. Automaton has 8512 states and 29109 transitions. Word has length 182 [2022-01-28 13:30:03,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:03,006 INFO L470 AbstractCegarLoop]: Abstraction has 8512 states and 29109 transitions. [2022-01-28 13:30:03,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:03,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8512 states and 29109 transitions. [2022-01-28 13:30:03,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:03,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:03,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:03,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-28 13:30:03,019 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:03,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:03,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1269771011, now seen corresponding path program 52 times [2022-01-28 13:30:03,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:03,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719832802] [2022-01-28 13:30:03,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:03,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:03,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:03,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719832802] [2022-01-28 13:30:03,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719832802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:03,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:03,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:03,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720038390] [2022-01-28 13:30:03,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:03,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:03,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:03,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:03,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:03,458 INFO L87 Difference]: Start difference. First operand 8512 states and 29109 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:03,870 INFO L93 Difference]: Finished difference Result 11254 states and 38573 transitions. [2022-01-28 13:30:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:30:03,870 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:03,897 INFO L225 Difference]: With dead ends: 11254 [2022-01-28 13:30:03,897 INFO L226 Difference]: Without dead ends: 11104 [2022-01-28 13:30:03,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:03,898 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 480 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:03,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 2103 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:30:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-01-28 13:30:04,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 8488. [2022-01-28 13:30:04,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-01-28 13:30:04,071 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-01-28 13:30:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:04,072 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-01-28 13:30:04,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-01-28 13:30:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:04,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:04,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:04,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-28 13:30:04,087 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:04,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:04,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1833140033, now seen corresponding path program 53 times [2022-01-28 13:30:04,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:04,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398463203] [2022-01-28 13:30:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:04,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:04,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:04,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398463203] [2022-01-28 13:30:04,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398463203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:04,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:04,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:04,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249925662] [2022-01-28 13:30:04,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:04,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:04,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:04,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:04,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:04,406 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:04,699 INFO L93 Difference]: Finished difference Result 10586 states and 36098 transitions. [2022-01-28 13:30:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:30:04,700 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:04,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:04,724 INFO L225 Difference]: With dead ends: 10586 [2022-01-28 13:30:04,724 INFO L226 Difference]: Without dead ends: 10436 [2022-01-28 13:30:04,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-01-28 13:30:04,725 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 515 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:04,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 2248 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:30:04,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2022-01-28 13:30:04,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 8788. [2022-01-28 13:30:04,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 8787 states have (on average 3.4111756003186526) internal successors, (29974), 8787 states have internal predecessors, (29974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 29974 transitions. [2022-01-28 13:30:04,889 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 29974 transitions. Word has length 182 [2022-01-28 13:30:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:04,889 INFO L470 AbstractCegarLoop]: Abstraction has 8788 states and 29974 transitions. [2022-01-28 13:30:04,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 29974 transitions. [2022-01-28 13:30:04,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:04,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:04,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:04,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-28 13:30:04,905 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:04,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:04,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1433510019, now seen corresponding path program 54 times [2022-01-28 13:30:04,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:04,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677295245] [2022-01-28 13:30:04,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:04,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:05,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:05,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677295245] [2022-01-28 13:30:05,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677295245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:05,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:05,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:05,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736526528] [2022-01-28 13:30:05,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:05,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:05,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:05,345 INFO L87 Difference]: Start difference. First operand 8788 states and 29974 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:05,760 INFO L93 Difference]: Finished difference Result 11446 states and 39030 transitions. [2022-01-28 13:30:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:30:05,760 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:05,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:05,786 INFO L225 Difference]: With dead ends: 11446 [2022-01-28 13:30:05,787 INFO L226 Difference]: Without dead ends: 11296 [2022-01-28 13:30:05,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:05,787 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 366 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:05,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 2450 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:30:05,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2022-01-28 13:30:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 8758. [2022-01-28 13:30:05,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8758 states, 8757 states have (on average 3.408016443987667) internal successors, (29844), 8757 states have internal predecessors, (29844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:05,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8758 states to 8758 states and 29844 transitions. [2022-01-28 13:30:05,958 INFO L78 Accepts]: Start accepts. Automaton has 8758 states and 29844 transitions. Word has length 182 [2022-01-28 13:30:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:05,958 INFO L470 AbstractCegarLoop]: Abstraction has 8758 states and 29844 transitions. [2022-01-28 13:30:05,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8758 states and 29844 transitions. [2022-01-28 13:30:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:05,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:05,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:05,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-28 13:30:05,974 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1214084581, now seen corresponding path program 55 times [2022-01-28 13:30:05,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:05,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837190153] [2022-01-28 13:30:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:05,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:06,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837190153] [2022-01-28 13:30:06,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837190153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:06,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:06,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:06,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497105935] [2022-01-28 13:30:06,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:06,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:06,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:06,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:06,384 INFO L87 Difference]: Start difference. First operand 8758 states and 29844 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:06,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:06,788 INFO L93 Difference]: Finished difference Result 11581 states and 39520 transitions. [2022-01-28 13:30:06,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:30:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:06,817 INFO L225 Difference]: With dead ends: 11581 [2022-01-28 13:30:06,818 INFO L226 Difference]: Without dead ends: 11431 [2022-01-28 13:30:06,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:06,818 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 463 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:06,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2755 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:30:06,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11431 states. [2022-01-28 13:30:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11431 to 8728. [2022-01-28 13:30:06,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8727 states have (on average 3.4082731752033917) internal successors, (29744), 8727 states have internal predecessors, (29744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 29744 transitions. [2022-01-28 13:30:07,004 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 29744 transitions. Word has length 182 [2022-01-28 13:30:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:07,004 INFO L470 AbstractCegarLoop]: Abstraction has 8728 states and 29744 transitions. [2022-01-28 13:30:07,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 29744 transitions. [2022-01-28 13:30:07,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:07,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:07,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:07,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-28 13:30:07,020 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:07,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash -501599589, now seen corresponding path program 56 times [2022-01-28 13:30:07,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:07,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119092064] [2022-01-28 13:30:07,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:07,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:07,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:07,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119092064] [2022-01-28 13:30:07,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119092064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:07,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:07,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:07,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812408760] [2022-01-28 13:30:07,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:07,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:07,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:07,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:07,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:07,409 INFO L87 Difference]: Start difference. First operand 8728 states and 29744 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:07,771 INFO L93 Difference]: Finished difference Result 11350 states and 38758 transitions. [2022-01-28 13:30:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:30:07,771 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:07,797 INFO L225 Difference]: With dead ends: 11350 [2022-01-28 13:30:07,798 INFO L226 Difference]: Without dead ends: 11200 [2022-01-28 13:30:07,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:07,799 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 492 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:07,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 2431 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:30:07,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11200 states. [2022-01-28 13:30:07,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11200 to 8488. [2022-01-28 13:30:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-01-28 13:30:07,957 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-01-28 13:30:07,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:07,957 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-01-28 13:30:07,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-01-28 13:30:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:07,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:07,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:07,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-28 13:30:07,972 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:07,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1963569153, now seen corresponding path program 57 times [2022-01-28 13:30:07,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:07,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063792469] [2022-01-28 13:30:07,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:07,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:08,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:08,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063792469] [2022-01-28 13:30:08,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063792469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:08,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:08,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:08,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79026583] [2022-01-28 13:30:08,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:08,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:08,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:08,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:08,346 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:08,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:08,647 INFO L93 Difference]: Finished difference Result 10496 states and 36023 transitions. [2022-01-28 13:30:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:30:08,647 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:08,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:08,671 INFO L225 Difference]: With dead ends: 10496 [2022-01-28 13:30:08,671 INFO L226 Difference]: Without dead ends: 10310 [2022-01-28 13:30:08,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2022-01-28 13:30:08,672 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 433 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 2336 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:08,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 2336 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:30:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2022-01-28 13:30:08,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 8568. [2022-01-28 13:30:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.422785105637913) internal successors, (29323), 8567 states have internal predecessors, (29323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29323 transitions. [2022-01-28 13:30:08,828 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29323 transitions. Word has length 182 [2022-01-28 13:30:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:08,828 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29323 transitions. [2022-01-28 13:30:08,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:08,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29323 transitions. [2022-01-28 13:30:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:08,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:08,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:08,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-28 13:30:08,843 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1126826113, now seen corresponding path program 58 times [2022-01-28 13:30:08,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:08,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520803379] [2022-01-28 13:30:08,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:08,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:09,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:09,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:09,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520803379] [2022-01-28 13:30:09,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520803379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:09,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:09,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:09,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279575448] [2022-01-28 13:30:09,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:09,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:09,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:09,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:09,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:09,345 INFO L87 Difference]: Start difference. First operand 8568 states and 29323 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:09,732 INFO L93 Difference]: Finished difference Result 11292 states and 38714 transitions. [2022-01-28 13:30:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:30:09,733 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:09,760 INFO L225 Difference]: With dead ends: 11292 [2022-01-28 13:30:09,760 INFO L226 Difference]: Without dead ends: 11142 [2022-01-28 13:30:09,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:09,761 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 348 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:09,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 2380 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:30:09,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11142 states. [2022-01-28 13:30:10,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11142 to 8552. [2022-01-28 13:30:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4217050637352355) internal successors, (29259), 8551 states have internal predecessors, (29259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29259 transitions. [2022-01-28 13:30:10,086 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29259 transitions. Word has length 182 [2022-01-28 13:30:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:10,086 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29259 transitions. [2022-01-28 13:30:10,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29259 transitions. [2022-01-28 13:30:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:10,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:10,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:10,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-28 13:30:10,102 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:10,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:10,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1334474149, now seen corresponding path program 59 times [2022-01-28 13:30:10,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:10,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587614212] [2022-01-28 13:30:10,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:10,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:10,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:10,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587614212] [2022-01-28 13:30:10,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587614212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:10,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:10,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:10,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777781934] [2022-01-28 13:30:10,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:10,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:10,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:10,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:10,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:10,466 INFO L87 Difference]: Start difference. First operand 8552 states and 29259 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:10,804 INFO L93 Difference]: Finished difference Result 11441 states and 39195 transitions. [2022-01-28 13:30:10,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:30:10,804 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:10,830 INFO L225 Difference]: With dead ends: 11441 [2022-01-28 13:30:10,830 INFO L226 Difference]: Without dead ends: 11291 [2022-01-28 13:30:10,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:10,831 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 472 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:10,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 2070 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:30:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2022-01-28 13:30:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 8536. [2022-01-28 13:30:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.421089630931459) internal successors, (29199), 8535 states have internal predecessors, (29199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29199 transitions. [2022-01-28 13:30:10,997 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29199 transitions. Word has length 182 [2022-01-28 13:30:10,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:10,998 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29199 transitions. [2022-01-28 13:30:10,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29199 transitions. [2022-01-28 13:30:11,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-28 13:30:11,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:11,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:11,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-28 13:30:11,012 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:11,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:11,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1861367203, now seen corresponding path program 60 times [2022-01-28 13:30:11,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:11,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872037342] [2022-01-28 13:30:11,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:11,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:11,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:11,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872037342] [2022-01-28 13:30:11,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872037342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:11,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:30:11,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-28 13:30:11,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907216671] [2022-01-28 13:30:11,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:11,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-28 13:30:11,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:11,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-28 13:30:11,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:30:11,334 INFO L87 Difference]: Start difference. First operand 8536 states and 29199 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:11,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:11,761 INFO L93 Difference]: Finished difference Result 11218 states and 38438 transitions. [2022-01-28 13:30:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-28 13:30:11,762 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) Word has length 182 [2022-01-28 13:30:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:11,788 INFO L225 Difference]: With dead ends: 11218 [2022-01-28 13:30:11,788 INFO L226 Difference]: Without dead ends: 11068 [2022-01-28 13:30:11,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-01-28 13:30:11,788 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 409 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:11,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2476 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-28 13:30:11,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2022-01-28 13:30:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 8360. [2022-01-28 13:30:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8360 states, 8359 states have (on average 3.4184711089843285) internal successors, (28575), 8359 states have internal predecessors, (28575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8360 states to 8360 states and 28575 transitions. [2022-01-28 13:30:11,955 INFO L78 Accepts]: Start accepts. Automaton has 8360 states and 28575 transitions. Word has length 182 [2022-01-28 13:30:11,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:11,955 INFO L470 AbstractCegarLoop]: Abstraction has 8360 states and 28575 transitions. [2022-01-28 13:30:11,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 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) [2022-01-28 13:30:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 8360 states and 28575 transitions. [2022-01-28 13:30:11,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-01-28 13:30:11,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:11,971 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:11,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-28 13:30:11,972 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:11,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:11,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1224210520, now seen corresponding path program 1 times [2022-01-28 13:30:11,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:11,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277084759] [2022-01-28 13:30:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:11,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:12,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:12,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277084759] [2022-01-28 13:30:12,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277084759] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:12,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856993748] [2022-01-28 13:30:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:12,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:12,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:12,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:30:12,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-28 13:30:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:12,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-28 13:30:12,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:30:12,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-28 13:30:12,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856993748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:30:12,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-28 13:30:12,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-01-28 13:30:12,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234239188] [2022-01-28 13:30:12,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:30:12,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 13:30:12,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:12,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 13:30:12,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:30:12,430 INFO L87 Difference]: Start difference. First operand 8360 states and 28575 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:12,518 INFO L93 Difference]: Finished difference Result 16640 states and 58245 transitions. [2022-01-28 13:30:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-28 13:30:12,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 187 [2022-01-28 13:30:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:12,556 INFO L225 Difference]: With dead ends: 16640 [2022-01-28 13:30:12,556 INFO L226 Difference]: Without dead ends: 15860 [2022-01-28 13:30:12,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:30:12,557 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 173 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:12,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 397 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 13:30:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2022-01-28 13:30:12,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 13004. [2022-01-28 13:30:12,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 13003 states have (on average 3.5440283011612705) internal successors, (46083), 13003 states have internal predecessors, (46083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 46083 transitions. [2022-01-28 13:30:12,802 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 46083 transitions. Word has length 187 [2022-01-28 13:30:12,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:12,802 INFO L470 AbstractCegarLoop]: Abstraction has 13004 states and 46083 transitions. [2022-01-28 13:30:12,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 46083 transitions. [2022-01-28 13:30:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-01-28 13:30:12,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:12,825 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:12,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-28 13:30:13,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:13,033 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:13,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:13,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1066332014, now seen corresponding path program 1 times [2022-01-28 13:30:13,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:13,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300048673] [2022-01-28 13:30:13,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:13,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:13,133 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:13,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:13,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300048673] [2022-01-28 13:30:13,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300048673] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:13,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237341293] [2022-01-28 13:30:13,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:13,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:13,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:13,152 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) [2022-01-28 13:30:13,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-28 13:30:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:13,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-28 13:30:13,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:13,620 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:13,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:30:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:13,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237341293] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:30:13,983 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:30:13,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-28 13:30:13,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507092322] [2022-01-28 13:30:13,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:30:13,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-28 13:30:13,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-28 13:30:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-01-28 13:30:13,986 INFO L87 Difference]: Start difference. First operand 13004 states and 46083 transitions. Second operand has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:14,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:14,277 INFO L93 Difference]: Finished difference Result 21336 states and 73984 transitions. [2022-01-28 13:30:14,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 13:30:14,278 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 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 188 [2022-01-28 13:30:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:14,320 INFO L225 Difference]: With dead ends: 21336 [2022-01-28 13:30:14,320 INFO L226 Difference]: Without dead ends: 17904 [2022-01-28 13:30:14,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:30:14,321 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 1416 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:14,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1416 Valid, 1406 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:30:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17904 states. [2022-01-28 13:30:14,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17904 to 16252. [2022-01-28 13:30:14,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16252 states, 16251 states have (on average 3.50772260168605) internal successors, (57004), 16251 states have internal predecessors, (57004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 57004 transitions. [2022-01-28 13:30:14,791 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 57004 transitions. Word has length 188 [2022-01-28 13:30:14,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:14,791 INFO L470 AbstractCegarLoop]: Abstraction has 16252 states and 57004 transitions. [2022-01-28 13:30:14,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:14,791 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 57004 transitions. [2022-01-28 13:30:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-01-28 13:30:14,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:14,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:14,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-28 13:30:15,031 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,SelfDestructingSolverStorable64 [2022-01-28 13:30:15,032 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:15,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:15,033 INFO L85 PathProgramCache]: Analyzing trace with hash -44480918, now seen corresponding path program 1 times [2022-01-28 13:30:15,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:15,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700211395] [2022-01-28 13:30:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:15,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:15,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:15,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700211395] [2022-01-28 13:30:15,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700211395] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:15,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120926935] [2022-01-28 13:30:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:15,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:15,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:15,126 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) [2022-01-28 13:30:15,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-28 13:30:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:15,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-28 13:30:15,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:15,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:15,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:30:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:16,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120926935] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:30:16,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:30:16,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-28 13:30:16,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133529389] [2022-01-28 13:30:16,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:30:16,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-28 13:30:16,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:16,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-28 13:30:16,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-01-28 13:30:16,092 INFO L87 Difference]: Start difference. First operand 16252 states and 57004 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:16,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:16,448 INFO L93 Difference]: Finished difference Result 30484 states and 105398 transitions. [2022-01-28 13:30:16,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-28 13:30:16,449 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 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 188 [2022-01-28 13:30:16,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:16,500 INFO L225 Difference]: With dead ends: 30484 [2022-01-28 13:30:16,500 INFO L226 Difference]: Without dead ends: 21539 [2022-01-28 13:30:16,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-01-28 13:30:16,513 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 650 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:16,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [650 Valid, 1803 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:30:16,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21539 states. [2022-01-28 13:30:16,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21539 to 16503. [2022-01-28 13:30:16,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16503 states, 16502 states have (on average 3.4929705490243608) internal successors, (57641), 16502 states have internal predecessors, (57641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:16,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16503 states to 16503 states and 57641 transitions. [2022-01-28 13:30:16,855 INFO L78 Accepts]: Start accepts. Automaton has 16503 states and 57641 transitions. Word has length 188 [2022-01-28 13:30:16,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:16,855 INFO L470 AbstractCegarLoop]: Abstraction has 16503 states and 57641 transitions. [2022-01-28 13:30:16,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:16,856 INFO L276 IsEmpty]: Start isEmpty. Operand 16503 states and 57641 transitions. [2022-01-28 13:30:16,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:30:16,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:16,885 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:16,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-28 13:30:17,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:17,102 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:17,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1650696287, now seen corresponding path program 2 times [2022-01-28 13:30:17,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:17,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777841463] [2022-01-28 13:30:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:17,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:17,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-28 13:30:17,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:17,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777841463] [2022-01-28 13:30:17,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777841463] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:17,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608341989] [2022-01-28 13:30:17,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-28 13:30:17,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:17,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:17,179 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) [2022-01-28 13:30:17,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-28 13:30:17,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-28 13:30:17,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:30:17,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-28 13:30:17,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-28 13:30:18,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:30:18,897 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-28 13:30:18,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608341989] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:30:18,897 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:30:18,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 22 [2022-01-28 13:30:18,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296490044] [2022-01-28 13:30:18,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:30:18,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-28 13:30:18,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:18,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-28 13:30:18,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-01-28 13:30:18,899 INFO L87 Difference]: Start difference. First operand 16503 states and 57641 transitions. Second operand has 22 states, 22 states have (on average 17.818181818181817) internal successors, (392), 22 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:19,405 INFO L93 Difference]: Finished difference Result 43014 states and 151750 transitions. [2022-01-28 13:30:19,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-28 13:30:19,406 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 17.818181818181817) internal successors, (392), 22 states have internal predecessors, (392), 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 195 [2022-01-28 13:30:19,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:19,513 INFO L225 Difference]: With dead ends: 43014 [2022-01-28 13:30:19,513 INFO L226 Difference]: Without dead ends: 38586 [2022-01-28 13:30:19,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2022-01-28 13:30:19,514 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 1507 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:19,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 1859 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:30:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38586 states. [2022-01-28 13:30:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38586 to 27977. [2022-01-28 13:30:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27977 states, 27976 states have (on average 3.643122676579926) internal successors, (101920), 27976 states have internal predecessors, (101920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27977 states to 27977 states and 101920 transitions. [2022-01-28 13:30:20,365 INFO L78 Accepts]: Start accepts. Automaton has 27977 states and 101920 transitions. Word has length 195 [2022-01-28 13:30:20,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:20,365 INFO L470 AbstractCegarLoop]: Abstraction has 27977 states and 101920 transitions. [2022-01-28 13:30:20,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 17.818181818181817) internal successors, (392), 22 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 27977 states and 101920 transitions. [2022-01-28 13:30:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:30:20,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:20,420 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:20,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-28 13:30:20,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:20,636 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:20,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1930069325, now seen corresponding path program 2 times [2022-01-28 13:30:20,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:20,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880852285] [2022-01-28 13:30:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:20,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:20,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:20,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880852285] [2022-01-28 13:30:20,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880852285] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:20,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749267685] [2022-01-28 13:30:20,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-28 13:30:20,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:20,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:20,996 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) [2022-01-28 13:30:20,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-28 13:30:21,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-28 13:30:21,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:30:21,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 28 conjunts are in the unsatisfiable core [2022-01-28 13:30:21,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:22,127 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-28 13:30:22,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-01-28 13:30:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:22,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:30:22,410 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-28 13:30:22,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-01-28 13:30:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:23,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749267685] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:30:23,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:30:23,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 14] total 41 [2022-01-28 13:30:23,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710264779] [2022-01-28 13:30:23,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:30:23,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-28 13:30:23,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:23,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-28 13:30:23,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1343, Unknown=0, NotChecked=0, Total=1640 [2022-01-28 13:30:23,244 INFO L87 Difference]: Start difference. First operand 27977 states and 101920 transitions. Second operand has 41 states, 41 states have (on average 10.268292682926829) internal successors, (421), 41 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:25,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:25,144 INFO L93 Difference]: Finished difference Result 91180 states and 332212 transitions. [2022-01-28 13:30:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-28 13:30:25,145 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 10.268292682926829) internal successors, (421), 41 states have internal predecessors, (421), 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 195 [2022-01-28 13:30:25,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:25,431 INFO L225 Difference]: With dead ends: 91180 [2022-01-28 13:30:25,432 INFO L226 Difference]: Without dead ends: 90728 [2022-01-28 13:30:25,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 370 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1014, Invalid=4686, Unknown=0, NotChecked=0, Total=5700 [2022-01-28 13:30:25,433 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 1386 mSDsluCounter, 5322 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 5314 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:25,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 5314 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 978 Invalid, 0 Unknown, 59 Unchecked, 0.4s Time] [2022-01-28 13:30:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90728 states. [2022-01-28 13:30:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90728 to 53394. [2022-01-28 13:30:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53394 states, 53393 states have (on average 3.671473788698893) internal successors, (196031), 53393 states have internal predecessors, (196031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53394 states to 53394 states and 196031 transitions. [2022-01-28 13:30:27,520 INFO L78 Accepts]: Start accepts. Automaton has 53394 states and 196031 transitions. Word has length 195 [2022-01-28 13:30:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:27,521 INFO L470 AbstractCegarLoop]: Abstraction has 53394 states and 196031 transitions. [2022-01-28 13:30:27,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 10.268292682926829) internal successors, (421), 41 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 53394 states and 196031 transitions. [2022-01-28 13:30:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:30:27,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:27,644 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:27,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-28 13:30:27,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2022-01-28 13:30:27,845 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:27,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:27,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1514461503, now seen corresponding path program 3 times [2022-01-28 13:30:27,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:27,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644794710] [2022-01-28 13:30:27,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:27,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:28,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:28,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644794710] [2022-01-28 13:30:28,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644794710] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:28,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033888656] [2022-01-28 13:30:28,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-28 13:30:28,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:28,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:28,491 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) [2022-01-28 13:30:28,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-28 13:30:28,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-28 13:30:28,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:30:28,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-28 13:30:28,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:29,043 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-28 13:30:29,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-01-28 13:30:29,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-28 13:30:29,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:30:29,226 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-28 13:30:29,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-01-28 13:30:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-28 13:30:29,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033888656] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:30:29,572 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:30:29,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 5, 5] total 25 [2022-01-28 13:30:29,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911341731] [2022-01-28 13:30:29,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:30:29,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-28 13:30:29,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:29,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-28 13:30:29,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2022-01-28 13:30:29,573 INFO L87 Difference]: Start difference. First operand 53394 states and 196031 transitions. Second operand has 25 states, 25 states have (on average 12.52) internal successors, (313), 25 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:30,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:30,904 INFO L93 Difference]: Finished difference Result 64383 states and 233694 transitions. [2022-01-28 13:30:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-28 13:30:30,905 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.52) internal successors, (313), 25 states have internal predecessors, (313), 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 195 [2022-01-28 13:30:30,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:31,300 INFO L225 Difference]: With dead ends: 64383 [2022-01-28 13:30:31,301 INFO L226 Difference]: Without dead ends: 60679 [2022-01-28 13:30:31,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 387 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=379, Invalid=2273, Unknown=0, NotChecked=0, Total=2652 [2022-01-28 13:30:31,311 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 450 mSDsluCounter, 3785 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:31,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 3809 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 869 Invalid, 0 Unknown, 12 Unchecked, 0.3s Time] [2022-01-28 13:30:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60679 states. [2022-01-28 13:30:32,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60679 to 55247. [2022-01-28 13:30:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55247 states, 55246 states have (on average 3.66737863374724) internal successors, (202608), 55246 states have internal predecessors, (202608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55247 states to 55247 states and 202608 transitions. [2022-01-28 13:30:33,274 INFO L78 Accepts]: Start accepts. Automaton has 55247 states and 202608 transitions. Word has length 195 [2022-01-28 13:30:33,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:33,274 INFO L470 AbstractCegarLoop]: Abstraction has 55247 states and 202608 transitions. [2022-01-28 13:30:33,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.52) internal successors, (313), 25 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand 55247 states and 202608 transitions. [2022-01-28 13:30:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:30:33,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:33,576 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:33,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-28 13:30:33,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:33,792 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:33,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:33,792 INFO L85 PathProgramCache]: Analyzing trace with hash 799326719, now seen corresponding path program 4 times [2022-01-28 13:30:33,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:33,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061043424] [2022-01-28 13:30:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:33,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:34,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:34,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061043424] [2022-01-28 13:30:34,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061043424] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:34,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329665759] [2022-01-28 13:30:34,377 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-28 13:30:34,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:34,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:34,378 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:30:34,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-28 13:30:34,540 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-28 13:30:34,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:30:34,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 28 conjunts are in the unsatisfiable core [2022-01-28 13:30:34,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:35,660 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-28 13:30:35,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-01-28 13:30:35,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:35,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:30:35,932 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-01-28 13:30:35,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-01-28 13:30:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:36,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329665759] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:30:36,757 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:30:36,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14, 14] total 44 [2022-01-28 13:30:36,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460581726] [2022-01-28 13:30:36,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:30:36,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-28 13:30:36,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-28 13:30:36,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1623, Unknown=0, NotChecked=0, Total=1892 [2022-01-28 13:30:36,758 INFO L87 Difference]: Start difference. First operand 55247 states and 202608 transitions. Second operand has 44 states, 44 states have (on average 9.409090909090908) internal successors, (414), 44 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:38,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:38,516 INFO L93 Difference]: Finished difference Result 92310 states and 335992 transitions. [2022-01-28 13:30:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-28 13:30:38,516 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 9.409090909090908) internal successors, (414), 44 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-01-28 13:30:38,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:38,846 INFO L225 Difference]: With dead ends: 92310 [2022-01-28 13:30:38,847 INFO L226 Difference]: Without dead ends: 90826 [2022-01-28 13:30:38,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 371 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=908, Invalid=4494, Unknown=0, NotChecked=0, Total=5402 [2022-01-28 13:30:38,847 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 1918 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:38,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1918 Valid, 4339 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 964 Invalid, 0 Unknown, 18 Unchecked, 0.3s Time] [2022-01-28 13:30:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90826 states. [2022-01-28 13:30:40,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90826 to 57201. [2022-01-28 13:30:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57201 states, 57200 states have (on average 3.6556293706293705) internal successors, (209102), 57200 states have internal predecessors, (209102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57201 states to 57201 states and 209102 transitions. [2022-01-28 13:30:41,006 INFO L78 Accepts]: Start accepts. Automaton has 57201 states and 209102 transitions. Word has length 195 [2022-01-28 13:30:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:41,006 INFO L470 AbstractCegarLoop]: Abstraction has 57201 states and 209102 transitions. [2022-01-28 13:30:41,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 9.409090909090908) internal successors, (414), 44 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 57201 states and 209102 transitions. [2022-01-28 13:30:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:30:41,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:41,342 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:41,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-28 13:30:41,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:41,556 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:30:41,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:30:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1879711941, now seen corresponding path program 5 times [2022-01-28 13:30:41,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:30:41,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908873871] [2022-01-28 13:30:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:30:41,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:30:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:30:42,211 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:42,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:30:42,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908873871] [2022-01-28 13:30:42,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908873871] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:30:42,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456580208] [2022-01-28 13:30:42,212 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-28 13:30:42,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:30:42,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:30:42,213 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:30:42,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-28 13:30:42,387 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-28 13:30:42,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:30:42,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 39 conjunts are in the unsatisfiable core [2022-01-28 13:30:42,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:30:43,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:30:43,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:30:43,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-28 13:30:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:43,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:30:43,802 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1591 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1591) c_~q1~0.base) (+ c_~q1~0.offset (* c_~q1_front~0 4))) 0))) is different from false [2022-01-28 13:30:43,952 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:30:43,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-01-28 13:30:43,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-01-28 13:30:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:30:45,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456580208] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:30:45,434 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:30:45,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 21] total 60 [2022-01-28 13:30:45,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035104501] [2022-01-28 13:30:45,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:30:45,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-01-28 13:30:45,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:30:45,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-01-28 13:30:45,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=3158, Unknown=1, NotChecked=114, Total=3540 [2022-01-28 13:30:45,436 INFO L87 Difference]: Start difference. First operand 57201 states and 209102 transitions. Second operand has 60 states, 60 states have (on average 7.733333333333333) internal successors, (464), 60 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:53,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:30:53,904 INFO L93 Difference]: Finished difference Result 205091 states and 734279 transitions. [2022-01-28 13:30:53,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-28 13:30:53,905 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 7.733333333333333) internal successors, (464), 60 states have internal predecessors, (464), 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 195 [2022-01-28 13:30:53,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:30:55,192 INFO L225 Difference]: With dead ends: 205091 [2022-01-28 13:30:55,192 INFO L226 Difference]: Without dead ends: 196205 [2022-01-28 13:30:55,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 358 SyntacticMatches, 6 SemanticMatches, 138 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 5299 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=2459, Invalid=16722, Unknown=5, NotChecked=274, Total=19460 [2022-01-28 13:30:55,194 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 5424 mSDsluCounter, 12139 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 11511 SdHoareTripleChecker+Invalid, 4893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1785 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:30:55,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5424 Valid, 11511 Invalid, 4893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 2794 Invalid, 0 Unknown, 1785 Unchecked, 1.2s Time] [2022-01-28 13:30:55,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196205 states. [2022-01-28 13:30:58,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196205 to 89735. [2022-01-28 13:30:58,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89735 states, 89734 states have (on average 3.66258051574654) internal successors, (328658), 89734 states have internal predecessors, (328658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89735 states to 89735 states and 328658 transitions. [2022-01-28 13:30:59,624 INFO L78 Accepts]: Start accepts. Automaton has 89735 states and 328658 transitions. Word has length 195 [2022-01-28 13:30:59,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:30:59,624 INFO L470 AbstractCegarLoop]: Abstraction has 89735 states and 328658 transitions. [2022-01-28 13:30:59,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 7.733333333333333) internal successors, (464), 60 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:30:59,624 INFO L276 IsEmpty]: Start isEmpty. Operand 89735 states and 328658 transitions. [2022-01-28 13:30:59,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:30:59,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:30:59,843 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:30:59,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-28 13:31:00,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:31:00,043 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:31:00,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:31:00,044 INFO L85 PathProgramCache]: Analyzing trace with hash -397770113, now seen corresponding path program 6 times [2022-01-28 13:31:00,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:31:00,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752117367] [2022-01-28 13:31:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:31:00,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:31:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:31:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:00,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:31:00,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752117367] [2022-01-28 13:31:00,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752117367] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:31:00,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979251403] [2022-01-28 13:31:00,952 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-28 13:31:00,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:31:00,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:31:00,953 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:31:00,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-28 13:31:01,117 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-28 13:31:01,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:31:01,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 39 conjunts are in the unsatisfiable core [2022-01-28 13:31:01,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:31:02,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:31:02,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:31:02,479 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-28 13:31:02,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-01-28 13:31:02,535 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:02,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:31:02,708 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:31:02,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-01-28 13:31:02,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-01-28 13:31:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:03,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979251403] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:31:03,920 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:31:03,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 21] total 54 [2022-01-28 13:31:03,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028037443] [2022-01-28 13:31:03,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:31:03,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-28 13:31:03,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:31:03,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-28 13:31:03,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=2517, Unknown=2, NotChecked=0, Total=2862 [2022-01-28 13:31:03,922 INFO L87 Difference]: Start difference. First operand 89735 states and 328658 transitions. Second operand has 54 states, 54 states have (on average 7.796296296296297) internal successors, (421), 54 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:31:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:31:11,139 INFO L93 Difference]: Finished difference Result 256550 states and 926306 transitions. [2022-01-28 13:31:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-28 13:31:11,140 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 7.796296296296297) internal successors, (421), 54 states have internal predecessors, (421), 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 195 [2022-01-28 13:31:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:31:12,649 INFO L225 Difference]: With dead ends: 256550 [2022-01-28 13:31:12,649 INFO L226 Difference]: Without dead ends: 250754 [2022-01-28 13:31:12,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 363 SyntacticMatches, 9 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 4809 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2380, Invalid=14900, Unknown=12, NotChecked=0, Total=17292 [2022-01-28 13:31:12,650 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 5754 mSDsluCounter, 7869 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5754 SdHoareTripleChecker+Valid, 7503 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 457 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-28 13:31:12,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5754 Valid, 7503 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1913 Invalid, 0 Unknown, 457 Unchecked, 0.8s Time] [2022-01-28 13:31:13,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250754 states. [2022-01-28 13:31:18,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250754 to 132620. [2022-01-28 13:31:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132620 states, 132619 states have (on average 3.692314072644191) internal successors, (489671), 132619 states have internal predecessors, (489671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:31:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132620 states to 132620 states and 489671 transitions. [2022-01-28 13:31:20,495 INFO L78 Accepts]: Start accepts. Automaton has 132620 states and 489671 transitions. Word has length 195 [2022-01-28 13:31:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:31:20,495 INFO L470 AbstractCegarLoop]: Abstraction has 132620 states and 489671 transitions. [2022-01-28 13:31:20,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 7.796296296296297) internal successors, (421), 54 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:31:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 132620 states and 489671 transitions. [2022-01-28 13:31:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:31:21,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:31:21,111 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:31:21,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-28 13:31:21,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:31:21,325 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:31:21,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:31:21,326 INFO L85 PathProgramCache]: Analyzing trace with hash 17837709, now seen corresponding path program 7 times [2022-01-28 13:31:21,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:31:21,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606521402] [2022-01-28 13:31:21,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:31:21,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:31:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:31:22,658 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:31:22,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:31:22,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606521402] [2022-01-28 13:31:22,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606521402] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:31:22,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507047194] [2022-01-28 13:31:22,658 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-28 13:31:22,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:31:22,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:31:22,659 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:31:22,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-28 13:31:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:31:22,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-28 13:31:22,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:31:22,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-28 13:31:22,902 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-28 13:31:22,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-01-28 13:31:23,418 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-28 13:31:23,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-01-28 13:31:24,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:31:24,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-28 13:31:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:24,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:31:24,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:31:24,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-01-28 13:31:24,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-01-28 13:31:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:26,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507047194] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:31:26,652 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:31:26,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 67 [2022-01-28 13:31:26,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262703853] [2022-01-28 13:31:26,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:31:26,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-01-28 13:31:26,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:31:26,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-01-28 13:31:26,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=4083, Unknown=1, NotChecked=0, Total=4422 [2022-01-28 13:31:26,653 INFO L87 Difference]: Start difference. First operand 132620 states and 489671 transitions. Second operand has 67 states, 67 states have (on average 6.791044776119403) internal successors, (455), 67 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:31:41,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:31:41,473 INFO L93 Difference]: Finished difference Result 359298 states and 1296952 transitions. [2022-01-28 13:31:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-01-28 13:31:41,473 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.791044776119403) internal successors, (455), 67 states have internal predecessors, (455), 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 195 [2022-01-28 13:31:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:31:43,661 INFO L225 Difference]: With dead ends: 359298 [2022-01-28 13:31:43,661 INFO L226 Difference]: Without dead ends: 333168 [2022-01-28 13:31:43,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 356 SyntacticMatches, 8 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8949 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=3541, Invalid=25851, Unknown=20, NotChecked=0, Total=29412 [2022-01-28 13:31:43,663 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 6007 mSDsluCounter, 15094 mSDsCounter, 0 mSdLazyCounter, 4414 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6007 SdHoareTripleChecker+Valid, 13878 SdHoareTripleChecker+Invalid, 6169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 4414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1421 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:31:43,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6007 Valid, 13878 Invalid, 6169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 4414 Invalid, 0 Unknown, 1421 Unchecked, 2.1s Time] [2022-01-28 13:31:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333168 states. [2022-01-28 13:31:51,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333168 to 154687. [2022-01-28 13:31:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154687 states, 154686 states have (on average 3.766636929004564) internal successors, (582646), 154686 states have internal predecessors, (582646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:31:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154687 states to 154687 states and 582646 transitions. [2022-01-28 13:31:52,929 INFO L78 Accepts]: Start accepts. Automaton has 154687 states and 582646 transitions. Word has length 195 [2022-01-28 13:31:52,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:31:52,929 INFO L470 AbstractCegarLoop]: Abstraction has 154687 states and 582646 transitions. [2022-01-28 13:31:52,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.791044776119403) internal successors, (455), 67 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:31:52,929 INFO L276 IsEmpty]: Start isEmpty. Operand 154687 states and 582646 transitions. [2022-01-28 13:31:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:31:53,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:31:53,404 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:31:53,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-28 13:31:53,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2022-01-28 13:31:53,621 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:31:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:31:53,621 INFO L85 PathProgramCache]: Analyzing trace with hash -882956143, now seen corresponding path program 8 times [2022-01-28 13:31:53,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:31:53,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636918306] [2022-01-28 13:31:53,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:31:53,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:31:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:31:54,601 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:54,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:31:54,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636918306] [2022-01-28 13:31:54,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636918306] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:31:54,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985104353] [2022-01-28 13:31:54,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-28 13:31:54,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:31:54,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:31:54,603 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:31:54,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-28 13:31:54,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-28 13:31:54,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:31:54,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 44 conjunts are in the unsatisfiable core [2022-01-28 13:31:54,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:31:56,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:31:56,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:31:56,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:31:56,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:31:56,332 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-28 13:31:56,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-01-28 13:31:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:56,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:31:56,876 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:31:56,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-01-28 13:31:56,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2022-01-28 13:31:56,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2022-01-28 13:31:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:31:58,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985104353] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:31:58,956 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:31:58,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 23] total 67 [2022-01-28 13:31:58,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127779494] [2022-01-28 13:31:58,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:31:58,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-01-28 13:31:58,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:31:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-01-28 13:31:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=4122, Unknown=5, NotChecked=0, Total=4422 [2022-01-28 13:31:58,965 INFO L87 Difference]: Start difference. First operand 154687 states and 582646 transitions. Second operand has 67 states, 67 states have (on average 6.925373134328358) internal successors, (464), 67 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:32:06,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:32:06,150 INFO L93 Difference]: Finished difference Result 229008 states and 862885 transitions. [2022-01-28 13:32:06,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-28 13:32:06,160 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.925373134328358) internal successors, (464), 67 states have internal predecessors, (464), 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 195 [2022-01-28 13:32:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:32:07,581 INFO L225 Difference]: With dead ends: 229008 [2022-01-28 13:32:07,581 INFO L226 Difference]: Without dead ends: 228346 [2022-01-28 13:32:07,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 353 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3274 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1726, Invalid=11609, Unknown=5, NotChecked=0, Total=13340 [2022-01-28 13:32:07,582 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 1829 mSDsluCounter, 8845 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 8564 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 376 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:32:07,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 8564 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2253 Invalid, 0 Unknown, 376 Unchecked, 1.0s Time] [2022-01-28 13:32:08,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228346 states. [2022-01-28 13:32:13,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228346 to 154847. [2022-01-28 13:32:13,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154847 states, 154846 states have (on average 3.765457293052452) internal successors, (583066), 154846 states have internal predecessors, (583066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:32:14,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154847 states to 154847 states and 583066 transitions. [2022-01-28 13:32:14,680 INFO L78 Accepts]: Start accepts. Automaton has 154847 states and 583066 transitions. Word has length 195 [2022-01-28 13:32:14,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:32:14,680 INFO L470 AbstractCegarLoop]: Abstraction has 154847 states and 583066 transitions. [2022-01-28 13:32:14,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.925373134328358) internal successors, (464), 67 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:32:14,680 INFO L276 IsEmpty]: Start isEmpty. Operand 154847 states and 583066 transitions. [2022-01-28 13:32:15,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:32:15,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:32:15,508 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:32:15,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-28 13:32:15,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-01-28 13:32:15,725 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:32:15,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:32:15,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1743355003, now seen corresponding path program 9 times [2022-01-28 13:32:15,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:32:15,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736367576] [2022-01-28 13:32:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:32:15,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:32:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:32:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:32:16,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:32:16,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736367576] [2022-01-28 13:32:16,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736367576] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:32:16,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430694411] [2022-01-28 13:32:16,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-28 13:32:16,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:32:16,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:32:16,331 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:32:16,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-28 13:32:16,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-28 13:32:16,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:32:16,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-28 13:32:16,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:32:17,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:32:17,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:32:18,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:32:18,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:32:18,140 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-28 13:32:18,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-01-28 13:32:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-28 13:32:18,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:32:18,253 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1775 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1775) c_~q1~0.base) (+ c_~q1~0.offset (* c_~q1_front~0 4))) 0))) is different from false [2022-01-28 13:32:18,280 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1775 (Array Int Int)) (v_ArrVal_1774 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1774) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1775) c_~q1~0.base) (+ c_~q1~0.offset (* c_~q1_front~0 4))) 0))) is different from false [2022-01-28 13:32:18,286 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:32:18,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-01-28 13:32:18,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-01-28 13:32:18,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-01-28 13:32:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 1 not checked. [2022-01-28 13:32:18,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430694411] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:32:18,802 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:32:18,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14, 14] total 43 [2022-01-28 13:32:18,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39133010] [2022-01-28 13:32:18,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:32:18,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-28 13:32:18,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:32:18,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-28 13:32:18,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1518, Unknown=2, NotChecked=158, Total=1806 [2022-01-28 13:32:18,803 INFO L87 Difference]: Start difference. First operand 154847 states and 583066 transitions. Second operand has 43 states, 43 states have (on average 10.069767441860465) internal successors, (433), 43 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:32:22,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:32:22,186 INFO L93 Difference]: Finished difference Result 186510 states and 691948 transitions. [2022-01-28 13:32:22,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-28 13:32:22,187 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 10.069767441860465) internal successors, (433), 43 states have internal predecessors, (433), 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 195 [2022-01-28 13:32:22,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:32:24,031 INFO L225 Difference]: With dead ends: 186510 [2022-01-28 13:32:24,031 INFO L226 Difference]: Without dead ends: 184788 [2022-01-28 13:32:24,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 370 SyntacticMatches, 10 SemanticMatches, 80 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1460 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=880, Invalid=5446, Unknown=2, NotChecked=314, Total=6642 [2022-01-28 13:32:24,032 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 2031 mSDsluCounter, 5129 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 5160 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 605 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:32:24,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2031 Valid, 5160 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1071 Invalid, 0 Unknown, 605 Unchecked, 0.4s Time] [2022-01-28 13:32:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184788 states. [2022-01-28 13:32:29,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184788 to 160741. [2022-01-28 13:32:29,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160741 states, 160740 states have (on average 3.75233918128655) internal successors, (603151), 160740 states have internal predecessors, (603151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:32:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160741 states to 160741 states and 603151 transitions. [2022-01-28 13:32:30,961 INFO L78 Accepts]: Start accepts. Automaton has 160741 states and 603151 transitions. Word has length 195 [2022-01-28 13:32:30,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:32:30,961 INFO L470 AbstractCegarLoop]: Abstraction has 160741 states and 603151 transitions. [2022-01-28 13:32:30,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 10.069767441860465) internal successors, (433), 43 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:32:30,961 INFO L276 IsEmpty]: Start isEmpty. Operand 160741 states and 603151 transitions. [2022-01-28 13:32:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:32:31,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:32:31,771 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:32:31,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-28 13:32:31,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:32:31,988 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:32:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:32:31,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1055946537, now seen corresponding path program 10 times [2022-01-28 13:32:31,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:32:31,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157748870] [2022-01-28 13:32:31,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:32:31,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:32:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:32:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:32:33,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:32:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157748870] [2022-01-28 13:32:33,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157748870] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:32:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874282172] [2022-01-28 13:32:33,228 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-28 13:32:33,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:32:33,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:32:33,229 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:32:33,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-28 13:32:33,399 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-28 13:32:33,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:32:33,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-28 13:32:33,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:32:33,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-28 13:32:33,456 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-28 13:32:33,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-28 13:32:33,753 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-01-28 13:32:33,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-01-28 13:32:34,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:32:34,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:32:34,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-28 13:32:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:32:34,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:32:35,000 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1823 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1823) c_~q1~0.base) (+ c_~q1~0.offset (* c_~q1_front~0 4))) 0))) is different from false [2022-01-28 13:32:35,186 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:32:35,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-01-28 13:32:35,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-01-28 13:32:35,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-01-28 13:32:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:32:36,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874282172] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:32:36,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:32:36,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 23, 23] total 70 [2022-01-28 13:32:36,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85171183] [2022-01-28 13:32:36,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:32:36,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-01-28 13:32:36,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:32:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-01-28 13:32:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=4366, Unknown=1, NotChecked=134, Total=4830 [2022-01-28 13:32:36,981 INFO L87 Difference]: Start difference. First operand 160741 states and 603151 transitions. Second operand has 70 states, 70 states have (on average 6.757142857142857) internal successors, (473), 70 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:32:51,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:32:51,445 INFO L93 Difference]: Finished difference Result 434043 states and 1607652 transitions. [2022-01-28 13:32:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-01-28 13:32:51,446 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 6.757142857142857) internal successors, (473), 70 states have internal predecessors, (473), 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 195 [2022-01-28 13:32:51,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:32:54,459 INFO L225 Difference]: With dead ends: 434043 [2022-01-28 13:32:54,460 INFO L226 Difference]: Without dead ends: 404943 [2022-01-28 13:32:54,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 361 SyntacticMatches, 10 SemanticMatches, 161 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8269 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=2527, Invalid=23555, Unknown=4, NotChecked=320, Total=26406 [2022-01-28 13:32:54,461 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 6416 mSDsluCounter, 14497 mSDsCounter, 0 mSdLazyCounter, 4266 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6416 SdHoareTripleChecker+Valid, 13839 SdHoareTripleChecker+Invalid, 6768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 4266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1986 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:32:54,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6416 Valid, 13839 Invalid, 6768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 4266 Invalid, 0 Unknown, 1986 Unchecked, 2.0s Time] [2022-01-28 13:32:55,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404943 states. [2022-01-28 13:33:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404943 to 191431. [2022-01-28 13:33:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191431 states, 191430 states have (on average 3.7775636002716397) internal successors, (723139), 191430 states have internal predecessors, (723139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:33:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191431 states to 191431 states and 723139 transitions. [2022-01-28 13:33:07,622 INFO L78 Accepts]: Start accepts. Automaton has 191431 states and 723139 transitions. Word has length 195 [2022-01-28 13:33:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:33:07,623 INFO L470 AbstractCegarLoop]: Abstraction has 191431 states and 723139 transitions. [2022-01-28 13:33:07,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 6.757142857142857) internal successors, (473), 70 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:33:07,623 INFO L276 IsEmpty]: Start isEmpty. Operand 191431 states and 723139 transitions. [2022-01-28 13:33:08,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-28 13:33:08,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:33:08,182 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:33:08,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-28 13:33:08,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2022-01-28 13:33:08,388 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:33:08,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:33:08,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2026715879, now seen corresponding path program 11 times [2022-01-28 13:33:08,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:33:08,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768628087] [2022-01-28 13:33:08,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:33:08,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:33:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:33:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:33:09,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:33:09,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768628087] [2022-01-28 13:33:09,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768628087] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:33:09,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263924612] [2022-01-28 13:33:09,219 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-28 13:33:09,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:33:09,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:33:09,227 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:33:09,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-28 13:33:09,390 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-28 13:33:09,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:33:09,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-28 13:33:09,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:33:09,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-28 13:33:09,740 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-28 13:33:09,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-28 13:33:10,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:33:10,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:33:10,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:33:10,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-28 13:33:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:33:10,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:33:10,938 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:33:10,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 159 [2022-01-28 13:33:10,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 126 [2022-01-28 13:33:10,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 102 [2022-01-28 13:33:13,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-28 13:33:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:33:13,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263924612] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:33:13,058 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:33:13,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 63 [2022-01-28 13:33:13,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932230159] [2022-01-28 13:33:13,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:33:13,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-01-28 13:33:13,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:33:13,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-01-28 13:33:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=3564, Unknown=1, NotChecked=0, Total=3906 [2022-01-28 13:33:13,060 INFO L87 Difference]: Start difference. First operand 191431 states and 723139 transitions. Second operand has 63 states, 63 states have (on average 7.746031746031746) internal successors, (488), 63 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:33:22,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:33:22,541 INFO L93 Difference]: Finished difference Result 368592 states and 1397212 transitions. [2022-01-28 13:33:22,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-01-28 13:33:22,541 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 7.746031746031746) internal successors, (488), 63 states have internal predecessors, (488), 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 195 [2022-01-28 13:33:22,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:33:25,018 INFO L225 Difference]: With dead ends: 368592 [2022-01-28 13:33:25,018 INFO L226 Difference]: Without dead ends: 358407 [2022-01-28 13:33:25,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 364 SyntacticMatches, 4 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4667 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=2400, Invalid=15954, Unknown=6, NotChecked=0, Total=18360 [2022-01-28 13:33:25,020 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 5398 mSDsluCounter, 8502 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5398 SdHoareTripleChecker+Valid, 8107 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 928 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:33:25,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5398 Valid, 8107 Invalid, 3717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2519 Invalid, 0 Unknown, 928 Unchecked, 1.0s Time] [2022-01-28 13:33:26,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358407 states. [2022-01-28 13:33:35,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358407 to 222268. [2022-01-28 13:33:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222268 states, 222267 states have (on average 3.8439444451942935) internal successors, (854382), 222267 states have internal predecessors, (854382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:33:39,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222268 states to 222268 states and 854382 transitions. [2022-01-28 13:33:39,173 INFO L78 Accepts]: Start accepts. Automaton has 222268 states and 854382 transitions. Word has length 195 [2022-01-28 13:33:39,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:33:39,173 INFO L470 AbstractCegarLoop]: Abstraction has 222268 states and 854382 transitions. [2022-01-28 13:33:39,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 7.746031746031746) internal successors, (488), 63 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:33:39,173 INFO L276 IsEmpty]: Start isEmpty. Operand 222268 states and 854382 transitions. [2022-01-28 13:33:40,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-28 13:33:40,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:33:40,280 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:33:40,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-01-28 13:33:40,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:33:40,496 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:33:40,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:33:40,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1449450942, now seen corresponding path program 12 times [2022-01-28 13:33:40,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:33:40,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934362642] [2022-01-28 13:33:40,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:33:40,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:33:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:33:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:33:41,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:33:41,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934362642] [2022-01-28 13:33:41,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934362642] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:33:41,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529197795] [2022-01-28 13:33:41,239 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-28 13:33:41,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:33:41,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:33:41,241 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:33:41,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-28 13:33:41,417 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-28 13:33:41,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:33:41,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-28 13:33:41,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:33:42,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:33:42,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:33:42,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-28 13:33:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-28 13:33:42,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:33:42,379 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1919 (Array Int Int))) (not (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1919) c_~q1~0.base) (+ c_~q1~0.offset (* c_~q1_front~0 4)))))) is different from false [2022-01-28 13:33:42,414 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:33:42,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-01-28 13:33:42,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-01-28 13:33:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-01-28 13:33:43,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529197795] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:33:43,020 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:33:43,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 12] total 42 [2022-01-28 13:33:43,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917963231] [2022-01-28 13:33:43,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:33:43,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-28 13:33:43,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:33:43,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-28 13:33:43,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1533, Unknown=1, NotChecked=78, Total=1722 [2022-01-28 13:33:43,029 INFO L87 Difference]: Start difference. First operand 222268 states and 854382 transitions. Second operand has 42 states, 42 states have (on average 10.738095238095237) internal successors, (451), 42 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:33:49,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:33:49,425 INFO L93 Difference]: Finished difference Result 303111 states and 1142794 transitions. [2022-01-28 13:33:49,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-28 13:33:49,426 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 10.738095238095237) internal successors, (451), 42 states have internal predecessors, (451), 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 202 [2022-01-28 13:33:49,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:33:51,297 INFO L225 Difference]: With dead ends: 303111 [2022-01-28 13:33:51,297 INFO L226 Difference]: Without dead ends: 290089 [2022-01-28 13:33:51,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 386 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1300, Invalid=7259, Unknown=1, NotChecked=182, Total=8742 [2022-01-28 13:33:51,298 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 2095 mSDsluCounter, 4632 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 327 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-28 13:33:51,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2095 Valid, 4566 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1412 Invalid, 0 Unknown, 327 Unchecked, 0.6s Time] [2022-01-28 13:33:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290089 states. [2022-01-28 13:33:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290089 to 219561. [2022-01-28 13:34:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219561 states, 219560 states have (on average 3.851093095281472) internal successors, (845546), 219560 states have internal predecessors, (845546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:34:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219561 states to 219561 states and 845546 transitions. [2022-01-28 13:34:02,835 INFO L78 Accepts]: Start accepts. Automaton has 219561 states and 845546 transitions. Word has length 202 [2022-01-28 13:34:02,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:34:02,835 INFO L470 AbstractCegarLoop]: Abstraction has 219561 states and 845546 transitions. [2022-01-28 13:34:02,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 10.738095238095237) internal successors, (451), 42 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:34:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 219561 states and 845546 transitions. [2022-01-28 13:34:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-28 13:34:04,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:34:04,308 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:34:04,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-01-28 13:34:04,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:34:04,525 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:34:04,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:34:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash -344925648, now seen corresponding path program 13 times [2022-01-28 13:34:04,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:34:04,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433072464] [2022-01-28 13:34:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:34:04,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:34:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:34:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:34:07,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:34:07,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433072464] [2022-01-28 13:34:07,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433072464] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:34:07,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699820415] [2022-01-28 13:34:07,892 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-28 13:34:07,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:34:07,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:34:07,893 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:34:07,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-28 13:34:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:34:08,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 52 conjunts are in the unsatisfiable core [2022-01-28 13:34:08,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:34:08,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-28 13:34:08,161 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-28 13:34:08,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-01-28 13:34:08,461 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-28 13:34:08,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-01-28 13:34:09,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:34:09,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:34:09,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-28 13:34:10,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-28 13:34:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:34:10,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:34:10,249 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1971) c_~q1~0.base) (+ c_~q1~0.offset (* c_~q1_front~0 4))) 0))) is different from false [2022-01-28 13:34:10,445 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:34:10,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-01-28 13:34:10,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-01-28 13:34:10,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-01-28 13:34:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:34:12,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699820415] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:34:12,543 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:34:12,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 25, 25] total 85 [2022-01-28 13:34:12,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540201961] [2022-01-28 13:34:12,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:34:12,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-01-28 13:34:12,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:34:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-01-28 13:34:12,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=6531, Unknown=57, NotChecked=164, Total=7140 [2022-01-28 13:34:12,545 INFO L87 Difference]: Start difference. First operand 219561 states and 845546 transitions. Second operand has 85 states, 85 states have (on average 6.117647058823529) internal successors, (520), 85 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:34:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:34:56,271 INFO L93 Difference]: Finished difference Result 831802 states and 3131216 transitions. [2022-01-28 13:34:56,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 213 states. [2022-01-28 13:34:56,272 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 6.117647058823529) internal successors, (520), 85 states have internal predecessors, (520), 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 202 [2022-01-28 13:34:56,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:35:05,459 INFO L225 Difference]: With dead ends: 831802 [2022-01-28 13:35:05,459 INFO L226 Difference]: Without dead ends: 804607 [2022-01-28 13:35:05,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 361 SyntacticMatches, 99 SemanticMatches, 284 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 39424 ImplicationChecksByTransitivity, 30.7s TimeCoverageRelationStatistics Valid=7166, Invalid=73619, Unknown=159, NotChecked=566, Total=81510 [2022-01-28 13:35:05,462 INFO L933 BasicCegarLoop]: 763 mSDtfsCounter, 8477 mSDsluCounter, 36635 mSDsCounter, 0 mSdLazyCounter, 11870 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8477 SdHoareTripleChecker+Valid, 33792 SdHoareTripleChecker+Invalid, 17942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 11870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5704 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-28 13:35:05,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8477 Valid, 33792 Invalid, 17942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [368 Valid, 11870 Invalid, 0 Unknown, 5704 Unchecked, 5.7s Time] [2022-01-28 13:35:06,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804607 states. [2022-01-28 13:35:26,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804607 to 289376. [2022-01-28 13:35:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289376 states, 289375 states have (on average 3.844889848812095) internal successors, (1112615), 289375 states have internal predecessors, (1112615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:35:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289376 states to 289376 states and 1112615 transitions. [2022-01-28 13:35:30,135 INFO L78 Accepts]: Start accepts. Automaton has 289376 states and 1112615 transitions. Word has length 202 [2022-01-28 13:35:30,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:35:30,136 INFO L470 AbstractCegarLoop]: Abstraction has 289376 states and 1112615 transitions. [2022-01-28 13:35:30,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 6.117647058823529) internal successors, (520), 85 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:35:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 289376 states and 1112615 transitions. [2022-01-28 13:35:32,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-28 13:35:32,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:35:32,005 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:35:32,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-01-28 13:35:32,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2022-01-28 13:35:32,220 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 13:35:32,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:35:32,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1515193959, now seen corresponding path program 1 times [2022-01-28 13:35:32,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:35:32,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121213183] [2022-01-28 13:35:32,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:35:32,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:35:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:35:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-28 13:35:33,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:35:33,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121213183] [2022-01-28 13:35:33,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121213183] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:35:33,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32689252] [2022-01-28 13:35:33,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:35:33,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:35:33,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:35:33,217 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 13:35:33,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-28 13:35:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:35:33,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-28 13:35:33,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:35:35,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-28 13:35:35,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-01-28 13:35:35,525 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-28 13:35:35,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 11 [2022-01-28 13:35:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:35:35,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:35:35,619 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2020 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2020) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) is different from false [2022-01-28 13:35:35,896 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-28 13:35:35,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2022-01-28 13:35:35,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-01-28 13:35:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-01-28 13:35:37,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32689252] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:35:37,868 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:35:37,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 28, 28] total 71 [2022-01-28 13:35:37,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697477826] [2022-01-28 13:35:37,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:35:37,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-01-28 13:35:37,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:35:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-01-28 13:35:37,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=4420, Unknown=1, NotChecked=136, Total=4970 [2022-01-28 13:35:37,870 INFO L87 Difference]: Start difference. First operand 289376 states and 1112615 transitions. Second operand has 71 states, 71 states have (on average 6.76056338028169) internal successors, (480), 71 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:35:44,514 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_2020 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2020) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))))) (and .cse0 (or .cse0 (= |c_thread2Thread1of1ForFork1_~j~0#1| 0) (<= c_~n2~0 c_~q2_back~0) (< c_~q2_back~0 0)))) is different from false