/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 19:03:25,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 19:03:25,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 19:03:25,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 19:03:25,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 19:03:25,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 19:03:25,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 19:03:25,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 19:03:25,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 19:03:25,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 19:03:25,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 19:03:25,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 19:03:25,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 19:03:25,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 19:03:25,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 19:03:25,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 19:03:25,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 19:03:25,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 19:03:25,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 19:03:25,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 19:03:25,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 19:03:25,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 19:03:25,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 19:03:25,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 19:03:25,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 19:03:25,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 19:03:25,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 19:03:25,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 19:03:25,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 19:03:25,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 19:03:25,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 19:03:25,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 19:03:25,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 19:03:25,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 19:03:25,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 19:03:25,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 19:03:25,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 19:03:25,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 19:03:25,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 19:03:25,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 19:03:25,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 19:03:25,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 19:03:25,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 19:03:25,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 19:03:25,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 19:03:25,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 19:03:25,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 19:03:25,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 19:03:25,326 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 19:03:25,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 19:03:25,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 19:03:25,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 19:03:25,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 19:03:25,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 19:03:25,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 19:03:25,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 19:03:25,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 19:03:25,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 19:03:25,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:03:25,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 19:03:25,329 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 19:03:25,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 19:03:25,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 19:03:25,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 19:03:25,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 19:03:25,543 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 19:03:25,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-03-15 19:03:25,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afbe6ca7/3ff4a534e9bb4c13aa488e063ec08c73/FLAGc5d7c5612 [2022-03-15 19:03:25,991 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 19:03:25,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-03-15 19:03:26,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afbe6ca7/3ff4a534e9bb4c13aa488e063ec08c73/FLAGc5d7c5612 [2022-03-15 19:03:26,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afbe6ca7/3ff4a534e9bb4c13aa488e063ec08c73 [2022-03-15 19:03:26,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 19:03:26,024 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 19:03:26,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 19:03:26,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 19:03:26,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 19:03:26,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e6240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26, skipping insertion in model container [2022-03-15 19:03:26,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 19:03:26,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 19:03:26,276 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/parallel-ticket-5.wvr.c[3963,3976] [2022-03-15 19:03:26,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:03:26,288 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 19:03:26,323 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/parallel-ticket-5.wvr.c[3963,3976] [2022-03-15 19:03:26,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:03:26,345 INFO L208 MainTranslator]: Completed translation [2022-03-15 19:03:26,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26 WrapperNode [2022-03-15 19:03:26,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 19:03:26,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 19:03:26,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 19:03:26,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 19:03:26,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,403 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-03-15 19:03:26,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 19:03:26,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 19:03:26,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 19:03:26,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 19:03:26,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 19:03:26,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 19:03:26,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 19:03:26,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 19:03:26,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (1/1) ... [2022-03-15 19:03:26,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:03:26,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:03:26,484 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) [2022-03-15 19:03:26,501 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 [2022-03-15 19:03:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 19:03:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 19:03:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 19:03:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 19:03:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 19:03:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 19:03:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 19:03:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 19:03:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 19:03:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 19:03:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-15 19:03:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-15 19:03:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 19:03:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 19:03:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 19:03:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 19:03:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 19:03:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 19:03:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 19:03:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 19:03:26,526 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 19:03:26,598 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 19:03:26,599 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 19:03:26,896 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 19:03:26,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 19:03:26,961 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 19:03:26,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:03:26 BoogieIcfgContainer [2022-03-15 19:03:26,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 19:03:26,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 19:03:26,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 19:03:26,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 19:03:26,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 07:03:26" (1/3) ... [2022-03-15 19:03:26,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49355511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:03:26, skipping insertion in model container [2022-03-15 19:03:26,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:03:26" (2/3) ... [2022-03-15 19:03:26,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49355511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:03:26, skipping insertion in model container [2022-03-15 19:03:26,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:03:26" (3/3) ... [2022-03-15 19:03:26,974 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-03-15 19:03:26,977 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 19:03:26,978 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 19:03:26,978 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 19:03:26,978 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 19:03:27,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,041 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,041 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,042 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,042 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,046 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,046 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,046 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,046 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,047 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,047 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,050 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,050 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,051 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,051 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,051 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,051 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,051 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,052 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,052 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,052 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,062 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,062 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,062 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,063 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,063 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,063 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,064 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,064 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,065 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,065 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,065 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,066 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,068 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,068 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,068 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,069 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,069 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,069 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,070 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,070 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,071 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,071 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,071 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,071 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,074 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,074 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,075 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,075 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,075 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,076 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,077 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,079 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,084 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,085 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,085 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,085 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:03:27,098 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-03-15 19:03:27,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 19:03:27,139 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 19:03:27,139 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-03-15 19:03:27,151 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 19:03:27,158 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 165 transitions, 370 flow [2022-03-15 19:03:27,160 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 165 transitions, 370 flow [2022-03-15 19:03:27,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 165 transitions, 370 flow [2022-03-15 19:03:27,223 INFO L129 PetriNetUnfolder]: 2/160 cut-off events. [2022-03-15 19:03:27,223 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-03-15 19:03:27,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 160 events. 2/160 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-03-15 19:03:27,229 INFO L116 LiptonReduction]: Number of co-enabled transitions 2082 [2022-03-15 19:03:32,773 INFO L131 LiptonReduction]: Checked pairs total: 11829 [2022-03-15 19:03:32,773 INFO L133 LiptonReduction]: Total number of compositions: 122 [2022-03-15 19:03:32,780 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 48 transitions, 136 flow [2022-03-15 19:03:33,243 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10936 states, 10935 states have (on average 4.372382258802012) internal successors, (47812), 10935 states have internal predecessors, (47812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 10936 states, 10935 states have (on average 4.372382258802012) internal successors, (47812), 10935 states have internal predecessors, (47812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:03:33,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:03:33,435 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] [2022-03-15 19:03:33,436 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:03:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:03:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash 496116229, now seen corresponding path program 1 times [2022-03-15 19:03:33,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:03:33,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791935432] [2022-03-15 19:03:33,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:03:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:03:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:03:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:03:34,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:03:34,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791935432] [2022-03-15 19:03:34,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791935432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:03:34,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:03:34,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:03:34,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1222427578] [2022-03-15 19:03:34,052 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:03:34,065 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:03:34,419 INFO L252 McrAutomatonBuilder]: Finished intersection with 456 states and 1147 transitions. [2022-03-15 19:03:34,419 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:03:37,746 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [22063#(<= (+ 2 ~s~0) ~t~0), 22065#(or (< ~s~0 ~m1~0) (<= (+ 2 ~s~0) ~t~0)), 22062#(<= (+ 2 ~s~0) ~m3~0), 22064#(or (<= (+ 2 ~s~0) ~m3~0) (< ~s~0 ~m1~0)), 22066#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m1~0))] [2022-03-15 19:03:37,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 19:03:37,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:03:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 19:03:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-03-15 19:03:37,795 INFO L87 Difference]: Start difference. First operand has 10936 states, 10935 states have (on average 4.372382258802012) internal successors, (47812), 10935 states have internal predecessors, (47812), 0 states have call successors, (0), 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 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 12 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:03:39,242 INFO L93 Difference]: Finished difference Result 38388 states and 153413 transitions. [2022-03-15 19:03:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 19:03:39,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 12 states have internal predecessors, (128), 0 states have call successors, (0), 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 42 [2022-03-15 19:03:39,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:03:39,706 INFO L225 Difference]: With dead ends: 38388 [2022-03-15 19:03:39,706 INFO L226 Difference]: Without dead ends: 38376 [2022-03-15 19:03:39,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 400 SyntacticMatches, 9 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=444, Unknown=0, NotChecked=0, Total=650 [2022-03-15 19:03:39,710 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 262 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 19:03:39,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 183 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 19:03:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38376 states. [2022-03-15 19:03:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38376 to 16310. [2022-03-15 19:03:40,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16310 states, 16309 states have (on average 4.1361211600956524) internal successors, (67456), 16309 states have internal predecessors, (67456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:41,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16310 states to 16310 states and 67456 transitions. [2022-03-15 19:03:41,103 INFO L78 Accepts]: Start accepts. Automaton has 16310 states and 67456 transitions. Word has length 42 [2022-03-15 19:03:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:03:41,104 INFO L470 AbstractCegarLoop]: Abstraction has 16310 states and 67456 transitions. [2022-03-15 19:03:41,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 12 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 16310 states and 67456 transitions. [2022-03-15 19:03:41,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:03:41,168 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:03:41,168 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] [2022-03-15 19:03:41,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 19:03:41,169 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:03:41,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:03:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash -409134105, now seen corresponding path program 2 times [2022-03-15 19:03:41,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:03:41,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815182608] [2022-03-15 19:03:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:03:41,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:03:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:03:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:03:41,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:03:41,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815182608] [2022-03-15 19:03:41,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815182608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:03:41,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:03:41,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:03:41,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1571099577] [2022-03-15 19:03:41,360 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:03:41,372 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:03:41,674 INFO L252 McrAutomatonBuilder]: Finished intersection with 354 states and 803 transitions. [2022-03-15 19:03:41,674 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:03:43,964 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [93112#(<= (+ 3 ~s~0) ~t~0), 93116#(or (< ~s~0 ~m1~0) (<= (+ 3 ~s~0) ~t~0)), 93118#(or (< ~s~0 ~m1~0) (<= ~s~0 ~t~0)), 93110#(<= ~s~0 (+ ~t~0 1)), 93117#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m1~0)), 93114#(or (< ~s~0 ~m1~0) (<= (+ 3 ~s~0) ~m4~0)), 93109#(< ~s~0 ~m4~0), 93113#(or (< ~s~0 ~m1~0) (<= (+ 2 ~s~0) ~m4~0)), 93111#(<= (+ 3 ~s~0) ~m4~0), 93115#(or (< ~s~0 ~m1~0) (<= (+ 2 ~s~0) ~t~0))] [2022-03-15 19:03:43,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 19:03:43,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:03:43,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 19:03:43,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:03:43,966 INFO L87 Difference]: Start difference. First operand 16310 states and 67456 transitions. Second operand has 18 states, 18 states have (on average 8.333333333333334) internal successors, (150), 17 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:45,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:03:45,500 INFO L93 Difference]: Finished difference Result 46694 states and 167119 transitions. [2022-03-15 19:03:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-15 19:03:45,500 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.333333333333334) internal successors, (150), 17 states have internal predecessors, (150), 0 states have call successors, (0), 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 42 [2022-03-15 19:03:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:03:45,766 INFO L225 Difference]: With dead ends: 46694 [2022-03-15 19:03:45,767 INFO L226 Difference]: Without dead ends: 45452 [2022-03-15 19:03:45,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 297 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=364, Invalid=826, Unknown=0, NotChecked=0, Total=1190 [2022-03-15 19:03:45,768 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 496 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 19:03:45,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [496 Valid, 285 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 19:03:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45452 states. [2022-03-15 19:03:46,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45452 to 22236. [2022-03-15 19:03:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22236 states, 22235 states have (on average 3.768787946930515) internal successors, (83799), 22235 states have internal predecessors, (83799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22236 states to 22236 states and 83799 transitions. [2022-03-15 19:03:46,936 INFO L78 Accepts]: Start accepts. Automaton has 22236 states and 83799 transitions. Word has length 42 [2022-03-15 19:03:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:03:46,936 INFO L470 AbstractCegarLoop]: Abstraction has 22236 states and 83799 transitions. [2022-03-15 19:03:46,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.333333333333334) internal successors, (150), 17 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 22236 states and 83799 transitions. [2022-03-15 19:03:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:03:46,995 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:03:46,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:03:46,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 19:03:46,996 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:03:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:03:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1094677017, now seen corresponding path program 3 times [2022-03-15 19:03:46,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:03:46,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389676986] [2022-03-15 19:03:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:03:46,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:03:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:03:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:03:47,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:03:47,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389676986] [2022-03-15 19:03:47,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389676986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:03:47,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:03:47,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:03:47,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [389938311] [2022-03-15 19:03:47,224 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:03:47,232 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:03:47,397 INFO L252 McrAutomatonBuilder]: Finished intersection with 432 states and 986 transitions. [2022-03-15 19:03:47,397 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:03:53,541 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:03:53,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 19:03:53,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:03:53,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 19:03:53,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 19:03:53,543 INFO L87 Difference]: Start difference. First operand 22236 states and 83799 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:54,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:03:54,002 INFO L93 Difference]: Finished difference Result 39052 states and 142929 transitions. [2022-03-15 19:03:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 19:03:54,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 42 [2022-03-15 19:03:54,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:03:54,064 INFO L225 Difference]: With dead ends: 39052 [2022-03-15 19:03:54,064 INFO L226 Difference]: Without dead ends: 21810 [2022-03-15 19:03:54,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 160 SyntacticMatches, 232 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 19:03:54,065 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 19:03:54,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 4 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 19:03:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21810 states. [2022-03-15 19:03:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21810 to 21802. [2022-03-15 19:03:54,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21802 states, 21801 states have (on average 3.6370808678500985) internal successors, (79292), 21801 states have internal predecessors, (79292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21802 states to 21802 states and 79292 transitions. [2022-03-15 19:03:54,713 INFO L78 Accepts]: Start accepts. Automaton has 21802 states and 79292 transitions. Word has length 42 [2022-03-15 19:03:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:03:54,713 INFO L470 AbstractCegarLoop]: Abstraction has 21802 states and 79292 transitions. [2022-03-15 19:03:54,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:54,713 INFO L276 IsEmpty]: Start isEmpty. Operand 21802 states and 79292 transitions. [2022-03-15 19:03:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:03:54,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:03:54,946 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] [2022-03-15 19:03:54,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 19:03:54,948 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:03:54,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:03:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1104172441, now seen corresponding path program 4 times [2022-03-15 19:03:54,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:03:54,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541961365] [2022-03-15 19:03:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:03:54,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:03:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:03:55,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:03:55,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:03:55,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541961365] [2022-03-15 19:03:55,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541961365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:03:55,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:03:55,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:03:55,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [656806597] [2022-03-15 19:03:55,131 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:03:55,138 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:03:55,353 INFO L252 McrAutomatonBuilder]: Finished intersection with 446 states and 1066 transitions. [2022-03-15 19:03:55,353 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:03:57,564 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [266987#(or (< ~s~0 ~m1~0) (< ~s~0 ~m2~0)), 266986#(< ~s~0 ~m1~0), 266988#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m1~0)), 266989#(<= ~s~0 ~t~0)] [2022-03-15 19:03:57,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 19:03:57,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:03:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 19:03:57,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 19:03:57,565 INFO L87 Difference]: Start difference. First operand 21802 states and 79292 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:58,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:03:58,094 INFO L93 Difference]: Finished difference Result 27430 states and 89061 transitions. [2022-03-15 19:03:58,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 19:03:58,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 42 [2022-03-15 19:03:58,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:03:58,176 INFO L225 Difference]: With dead ends: 27430 [2022-03-15 19:03:58,176 INFO L226 Difference]: Without dead ends: 27134 [2022-03-15 19:03:58,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 398 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-15 19:03:58,178 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 90 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 19:03:58,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 102 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 19:03:58,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27134 states. [2022-03-15 19:03:58,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27134 to 19048. [2022-03-15 19:03:58,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19048 states, 19047 states have (on average 3.323253005722686) internal successors, (63298), 19047 states have internal predecessors, (63298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19048 states to 19048 states and 63298 transitions. [2022-03-15 19:03:58,616 INFO L78 Accepts]: Start accepts. Automaton has 19048 states and 63298 transitions. Word has length 42 [2022-03-15 19:03:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:03:58,616 INFO L470 AbstractCegarLoop]: Abstraction has 19048 states and 63298 transitions. [2022-03-15 19:03:58,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:03:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 19048 states and 63298 transitions. [2022-03-15 19:03:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:03:58,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:03:58,647 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] [2022-03-15 19:03:58,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 19:03:58,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:03:58,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:03:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1409125659, now seen corresponding path program 5 times [2022-03-15 19:03:58,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:03:58,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727682832] [2022-03-15 19:03:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:03:58,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:03:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:03:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:03:58,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:03:58,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727682832] [2022-03-15 19:03:58,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727682832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:03:58,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:03:58,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 19:03:58,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [245587618] [2022-03-15 19:03:58,757 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:03:58,764 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:03:58,973 INFO L252 McrAutomatonBuilder]: Finished intersection with 164 states and 319 transitions. [2022-03-15 19:03:58,973 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:03:59,700 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [332539#(<= ~s~0 ~t~0), 332538#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m1~0)), 332533#(< ~s~0 ~m1~0), 332537#(or (< ~s~0 ~m1~0) (<= (+ 2 ~s~0) ~t~0)), 332534#(or (< ~s~0 ~m1~0) (<= (+ ~s~0 4) ~m5~0)), 332535#(or (< ~s~0 ~m1~0) (<= (+ ~s~0 4) ~t~0)), 332536#(or (< ~s~0 ~m1~0) (<= (+ 3 ~s~0) ~t~0))] [2022-03-15 19:03:59,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 19:03:59,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:03:59,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 19:03:59,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-03-15 19:03:59,702 INFO L87 Difference]: Start difference. First operand 19048 states and 63298 transitions. Second operand has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:00,428 INFO L93 Difference]: Finished difference Result 21988 states and 72137 transitions. [2022-03-15 19:04:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 19:04:00,428 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:00,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:00,530 INFO L225 Difference]: With dead ends: 21988 [2022-03-15 19:04:00,531 INFO L226 Difference]: Without dead ends: 21798 [2022-03-15 19:04:00,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-03-15 19:04:00,532 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 190 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:00,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 237 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 19:04:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21798 states. [2022-03-15 19:04:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21798 to 16440. [2022-03-15 19:04:00,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16440 states, 16439 states have (on average 3.308230427641584) internal successors, (54384), 16439 states have internal predecessors, (54384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16440 states to 16440 states and 54384 transitions. [2022-03-15 19:04:00,887 INFO L78 Accepts]: Start accepts. Automaton has 16440 states and 54384 transitions. Word has length 42 [2022-03-15 19:04:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:00,888 INFO L470 AbstractCegarLoop]: Abstraction has 16440 states and 54384 transitions. [2022-03-15 19:04:00,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 16440 states and 54384 transitions. [2022-03-15 19:04:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:00,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:00,917 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] [2022-03-15 19:04:00,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 19:04:00,918 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:00,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:00,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1288647647, now seen corresponding path program 6 times [2022-03-15 19:04:00,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:00,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470065357] [2022-03-15 19:04:00,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:00,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:01,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:01,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470065357] [2022-03-15 19:04:01,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470065357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:01,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:01,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:04:01,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1767301022] [2022-03-15 19:04:01,026 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:01,032 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:01,179 INFO L252 McrAutomatonBuilder]: Finished intersection with 188 states and 386 transitions. [2022-03-15 19:04:01,179 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:01,980 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [387433#(< ~s~0 ~m1~0), 387436#(or (< ~s~0 ~m1~0) (<= (+ 3 ~s~0) ~t~0)), 387435#(or (<= (+ 3 ~s~0) ~m5~0) (< ~s~0 ~m1~0)), 387437#(or (< ~s~0 ~m1~0) (<= (+ 2 ~s~0) ~t~0)), 387432#(< ~s~0 ~m5~0), 387434#(or (< ~s~0 ~m1~0) (< ~s~0 ~m5~0)), 387439#(<= ~s~0 ~t~0), 387438#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m1~0))] [2022-03-15 19:04:01,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 19:04:01,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:01,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 19:04:01,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-03-15 19:04:01,981 INFO L87 Difference]: Start difference. First operand 16440 states and 54384 transitions. Second operand has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:02,882 INFO L93 Difference]: Finished difference Result 20488 states and 62983 transitions. [2022-03-15 19:04:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 19:04:02,882 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:02,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:02,924 INFO L225 Difference]: With dead ends: 20488 [2022-03-15 19:04:02,924 INFO L226 Difference]: Without dead ends: 19278 [2022-03-15 19:04:02,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2022-03-15 19:04:02,925 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 178 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:02,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 273 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 19:04:02,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19278 states. [2022-03-15 19:04:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19278 to 14044. [2022-03-15 19:04:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14044 states, 14043 states have (on average 3.1376486505732393) internal successors, (44062), 14043 states have internal predecessors, (44062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14044 states to 14044 states and 44062 transitions. [2022-03-15 19:04:03,294 INFO L78 Accepts]: Start accepts. Automaton has 14044 states and 44062 transitions. Word has length 42 [2022-03-15 19:04:03,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:03,294 INFO L470 AbstractCegarLoop]: Abstraction has 14044 states and 44062 transitions. [2022-03-15 19:04:03,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:03,294 INFO L276 IsEmpty]: Start isEmpty. Operand 14044 states and 44062 transitions. [2022-03-15 19:04:03,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:03,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:03,321 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] [2022-03-15 19:04:03,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 19:04:03,321 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:03,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1992656337, now seen corresponding path program 7 times [2022-03-15 19:04:03,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:03,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034275790] [2022-03-15 19:04:03,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:03,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:03,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:03,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034275790] [2022-03-15 19:04:03,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034275790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:03,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:03,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:04:03,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1240124736] [2022-03-15 19:04:03,453 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:03,460 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:03,522 INFO L252 McrAutomatonBuilder]: Finished intersection with 176 states and 364 transitions. [2022-03-15 19:04:03,522 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:04,276 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [436048#(<= (+ ~s~0 1) ~t~0), 436049#(<= ~s~0 ~t~0), 436052#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m2~0)), 436050#(or (<= (+ 2 ~s~0) ~m5~0) (< ~s~0 ~m2~0)), 436051#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~t~0))] [2022-03-15 19:04:04,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 19:04:04,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:04,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 19:04:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-15 19:04:04,278 INFO L87 Difference]: Start difference. First operand 14044 states and 44062 transitions. Second operand has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 12 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:04,863 INFO L93 Difference]: Finished difference Result 23212 states and 67604 transitions. [2022-03-15 19:04:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 19:04:04,864 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 12 states have internal predecessors, (96), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:04,906 INFO L225 Difference]: With dead ends: 23212 [2022-03-15 19:04:04,906 INFO L226 Difference]: Without dead ends: 22676 [2022-03-15 19:04:04,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2022-03-15 19:04:04,907 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 176 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:04,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 198 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 19:04:04,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22676 states. [2022-03-15 19:04:05,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22676 to 13130. [2022-03-15 19:04:05,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13130 states, 13129 states have (on average 3.052479244420748) internal successors, (40076), 13129 states have internal predecessors, (40076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13130 states to 13130 states and 40076 transitions. [2022-03-15 19:04:05,240 INFO L78 Accepts]: Start accepts. Automaton has 13130 states and 40076 transitions. Word has length 42 [2022-03-15 19:04:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:05,240 INFO L470 AbstractCegarLoop]: Abstraction has 13130 states and 40076 transitions. [2022-03-15 19:04:05,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 12 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 13130 states and 40076 transitions. [2022-03-15 19:04:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:05,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:05,260 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] [2022-03-15 19:04:05,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 19:04:05,261 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash 886872343, now seen corresponding path program 8 times [2022-03-15 19:04:05,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:05,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946588549] [2022-03-15 19:04:05,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:05,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:05,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:05,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946588549] [2022-03-15 19:04:05,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946588549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:05,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:05,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 19:04:05,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1266967366] [2022-03-15 19:04:05,370 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:05,377 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:05,465 INFO L252 McrAutomatonBuilder]: Finished intersection with 272 states and 619 transitions. [2022-03-15 19:04:05,466 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:07,286 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [485549#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~m1~0)), 485548#(<= (+ 2 ~s~0) ~m1~0), 485547#(<= (+ ~s~0 1) ~t~0), 485553#(and (or (< ~s~0 ~m2~0) (<= 1 ~t~0)) (or (< ~s~0 ~m2~0) (= ~s~0 0))), 485550#(and (or (<= 2 ~m1~0) (< ~s~0 ~m2~0)) (or (< ~s~0 ~m2~0) (= ~s~0 0))), 485552#(<= ~s~0 ~t~0), 485551#(and (or (< ~s~0 ~m2~0) (= ~s~0 0)) (or (<= 2 ~t~0) (< ~s~0 ~m2~0))), 485554#(and (or (<= 0 ~t~0) (< ~s~0 ~t~0)) (or (< ~s~0 ~t~0) (= ~s~0 0)))] [2022-03-15 19:04:07,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 19:04:07,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:07,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 19:04:07,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-03-15 19:04:07,287 INFO L87 Difference]: Start difference. First operand 13130 states and 40076 transitions. Second operand has 16 states, 16 states have (on average 7.8125) internal successors, (125), 15 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:07,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:07,891 INFO L93 Difference]: Finished difference Result 14390 states and 39045 transitions. [2022-03-15 19:04:07,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 19:04:07,892 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.8125) internal successors, (125), 15 states have internal predecessors, (125), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:07,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:07,917 INFO L225 Difference]: With dead ends: 14390 [2022-03-15 19:04:07,918 INFO L226 Difference]: Without dead ends: 14126 [2022-03-15 19:04:07,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 204 SyntacticMatches, 18 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2022-03-15 19:04:07,919 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 222 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:07,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 145 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 19:04:07,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14126 states. [2022-03-15 19:04:08,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14126 to 9278. [2022-03-15 19:04:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 9277 states have (on average 2.8366928964104776) internal successors, (26316), 9277 states have internal predecessors, (26316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:08,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 26316 transitions. [2022-03-15 19:04:08,132 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 26316 transitions. Word has length 42 [2022-03-15 19:04:08,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:08,133 INFO L470 AbstractCegarLoop]: Abstraction has 9278 states and 26316 transitions. [2022-03-15 19:04:08,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.8125) internal successors, (125), 15 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 26316 transitions. [2022-03-15 19:04:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:08,145 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:08,146 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] [2022-03-15 19:04:08,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 19:04:08,146 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1036183947, now seen corresponding path program 9 times [2022-03-15 19:04:08,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:08,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964950271] [2022-03-15 19:04:08,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:08,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:08,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:08,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964950271] [2022-03-15 19:04:08,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964950271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:08,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:08,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 19:04:08,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [67790125] [2022-03-15 19:04:08,284 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:08,292 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:08,355 INFO L252 McrAutomatonBuilder]: Finished intersection with 206 states and 440 transitions. [2022-03-15 19:04:08,355 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:09,798 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [518536#(and (or (< ~s~0 ~m2~0) (= ~s~0 0)) (or (< ~s~0 ~m2~0) (<= 3 ~t~0))), 518535#(and (or (<= (+ ~s~0 4) ~t~0) (< ~s~0 ~m2~0)) (or (< ~s~0 ~m2~0) (= ~s~0 0))), 518532#(<= ~s~0 ~t~0), 518538#(and (or (< ~s~0 ~m2~0) (<= 1 ~t~0)) (or (< ~s~0 ~m2~0) (= ~s~0 0))), 518533#(<= (+ ~s~0 4) ~m5~0), 518539#(and (or (<= 0 ~t~0) (< ~s~0 ~t~0)) (or (< ~s~0 ~t~0) (= ~s~0 0))), 518530#(<= (+ 2 ~s~0) ~t~0), 518531#(<= (+ ~s~0 1) ~t~0), 518537#(and (or (< ~s~0 ~m2~0) (= ~s~0 0)) (or (<= 2 ~t~0) (< ~s~0 ~m2~0))), 518534#(or (< ~s~0 ~m2~0) (<= (+ ~s~0 4) ~m5~0))] [2022-03-15 19:04:09,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-15 19:04:09,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:09,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-15 19:04:09,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-03-15 19:04:09,800 INFO L87 Difference]: Start difference. First operand 9278 states and 26316 transitions. Second operand has 21 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:10,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:10,945 INFO L93 Difference]: Finished difference Result 14260 states and 38123 transitions. [2022-03-15 19:04:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-15 19:04:10,946 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:10,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:10,968 INFO L225 Difference]: With dead ends: 14260 [2022-03-15 19:04:10,969 INFO L226 Difference]: Without dead ends: 13336 [2022-03-15 19:04:10,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 147 SyntacticMatches, 7 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=577, Invalid=1403, Unknown=0, NotChecked=0, Total=1980 [2022-03-15 19:04:10,970 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 422 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:10,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 347 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 19:04:10,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13336 states. [2022-03-15 19:04:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13336 to 9028. [2022-03-15 19:04:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.8069125955466934) internal successors, (25338), 9027 states have internal predecessors, (25338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:11,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 25338 transitions. [2022-03-15 19:04:11,157 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 25338 transitions. Word has length 42 [2022-03-15 19:04:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:11,157 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 25338 transitions. [2022-03-15 19:04:11,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 25338 transitions. [2022-03-15 19:04:11,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:11,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:11,170 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] [2022-03-15 19:04:11,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 19:04:11,170 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:11,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:11,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1890982901, now seen corresponding path program 10 times [2022-03-15 19:04:11,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:11,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961894192] [2022-03-15 19:04:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:11,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:11,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:11,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961894192] [2022-03-15 19:04:11,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961894192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:11,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:11,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 19:04:11,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [484383503] [2022-03-15 19:04:11,269 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:11,276 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:11,350 INFO L252 McrAutomatonBuilder]: Finished intersection with 248 states and 530 transitions. [2022-03-15 19:04:11,351 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:12,432 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [550916#(<= ~s~0 ~t~0), 550918#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m2~0)), 550915#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m2~0)), 550914#(or (<= (+ 3 ~s~0) ~m5~0) (< ~s~0 ~m2~0)), 550917#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~t~0)), 550913#(<= (+ 3 ~s~0) ~m5~0)] [2022-03-15 19:04:12,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 19:04:12,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:12,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 19:04:12,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-03-15 19:04:12,433 INFO L87 Difference]: Start difference. First operand 9028 states and 25338 transitions. Second operand has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 14 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:13,160 INFO L93 Difference]: Finished difference Result 15542 states and 40883 transitions. [2022-03-15 19:04:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-15 19:04:13,160 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 14 states have internal predecessors, (116), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:13,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:13,186 INFO L225 Difference]: With dead ends: 15542 [2022-03-15 19:04:13,186 INFO L226 Difference]: Without dead ends: 14826 [2022-03-15 19:04:13,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=296, Invalid=696, Unknown=0, NotChecked=0, Total=992 [2022-03-15 19:04:13,187 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 311 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:13,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 228 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 19:04:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14826 states. [2022-03-15 19:04:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14826 to 8620. [2022-03-15 19:04:13,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 2.7918552036199094) internal successors, (24063), 8619 states have internal predecessors, (24063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24063 transitions. [2022-03-15 19:04:13,351 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24063 transitions. Word has length 42 [2022-03-15 19:04:13,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:13,352 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24063 transitions. [2022-03-15 19:04:13,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 14 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24063 transitions. [2022-03-15 19:04:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:13,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:13,363 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] [2022-03-15 19:04:13,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 19:04:13,363 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash 717694527, now seen corresponding path program 11 times [2022-03-15 19:04:13,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:13,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632174822] [2022-03-15 19:04:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:13,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:13,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:13,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:13,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632174822] [2022-03-15 19:04:13,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632174822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:13,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:13,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 19:04:13,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1207305032] [2022-03-15 19:04:13,489 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:13,496 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:13,619 INFO L252 McrAutomatonBuilder]: Finished intersection with 268 states and 577 transitions. [2022-03-15 19:04:13,619 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:14,840 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [583745#(<= ~s~0 ~t~0), 583747#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m2~0)), 583746#(or (<= (+ 3 ~s~0) ~m1~0) (< ~s~0 ~m2~0)), 583748#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~t~0)), 583749#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m2~0))] [2022-03-15 19:04:14,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 19:04:14,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:14,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 19:04:14,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-03-15 19:04:14,841 INFO L87 Difference]: Start difference. First operand 8620 states and 24063 transitions. Second operand has 15 states, 15 states have (on average 8.0) internal successors, (120), 14 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:15,669 INFO L93 Difference]: Finished difference Result 14766 states and 38222 transitions. [2022-03-15 19:04:15,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 19:04:15,669 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.0) internal successors, (120), 14 states have internal predecessors, (120), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:15,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:15,688 INFO L225 Difference]: With dead ends: 14766 [2022-03-15 19:04:15,688 INFO L226 Difference]: Without dead ends: 12208 [2022-03-15 19:04:15,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 218 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=607, Unknown=0, NotChecked=0, Total=870 [2022-03-15 19:04:15,689 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 289 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:15,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 277 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 19:04:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2022-03-15 19:04:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 7744. [2022-03-15 19:04:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7744 states, 7743 states have (on average 2.6806147488053726) internal successors, (20756), 7743 states have internal predecessors, (20756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7744 states to 7744 states and 20756 transitions. [2022-03-15 19:04:15,837 INFO L78 Accepts]: Start accepts. Automaton has 7744 states and 20756 transitions. Word has length 42 [2022-03-15 19:04:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:15,837 INFO L470 AbstractCegarLoop]: Abstraction has 7744 states and 20756 transitions. [2022-03-15 19:04:15,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.0) internal successors, (120), 14 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7744 states and 20756 transitions. [2022-03-15 19:04:15,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:15,846 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:15,846 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] [2022-03-15 19:04:15,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 19:04:15,846 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:15,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1224393249, now seen corresponding path program 12 times [2022-03-15 19:04:15,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:15,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679397411] [2022-03-15 19:04:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:15,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:15,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:15,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679397411] [2022-03-15 19:04:15,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679397411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:15,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:15,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 19:04:15,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1005839733] [2022-03-15 19:04:15,986 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:15,993 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:16,062 INFO L252 McrAutomatonBuilder]: Finished intersection with 224 states and 478 transitions. [2022-03-15 19:04:16,063 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:17,428 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [614047#(< (+ 2 ~s~0) ~m5~0), 614049#(< (+ 3 ~s~0) ~m5~0), 614055#(and (or (<= 0 ~t~0) (< ~s~0 ~t~0)) (or (< ~s~0 ~t~0) (= ~s~0 0))), 614050#(or (< (+ 3 ~s~0) ~m5~0) (< ~s~0 ~m2~0)), 614048#(<= ~s~0 ~t~0), 614052#(and (or (< ~s~0 ~m2~0) (= ~s~0 0)) (or (< ~s~0 ~m2~0) (<= 3 ~t~0))), 614046#(< (+ ~s~0 1) ~m5~0), 614051#(and (or (< ~s~0 ~m2~0) (<= 4 ~t~0)) (or (< ~s~0 ~m2~0) (= ~s~0 0))), 614053#(and (or (< ~s~0 ~m2~0) (= ~s~0 0)) (or (<= 2 ~t~0) (< ~s~0 ~m2~0))), 614054#(and (or (< ~s~0 ~m2~0) (<= 1 ~t~0)) (or (< ~s~0 ~m2~0) (= ~s~0 0)))] [2022-03-15 19:04:17,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-15 19:04:17,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:17,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-15 19:04:17,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-03-15 19:04:17,429 INFO L87 Difference]: Start difference. First operand 7744 states and 20756 transitions. Second operand has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 21 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:18,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:18,916 INFO L93 Difference]: Finished difference Result 11402 states and 29321 transitions. [2022-03-15 19:04:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-15 19:04:18,917 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 21 states have internal predecessors, (148), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:18,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:18,932 INFO L225 Difference]: With dead ends: 11402 [2022-03-15 19:04:18,933 INFO L226 Difference]: Without dead ends: 10094 [2022-03-15 19:04:18,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 165 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=919, Invalid=2387, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 19:04:18,934 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 405 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 2579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:18,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 517 Invalid, 2579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-15 19:04:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10094 states. [2022-03-15 19:04:19,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10094 to 6916. [2022-03-15 19:04:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6916 states, 6915 states have (on average 2.6537960954446853) internal successors, (18351), 6915 states have internal predecessors, (18351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:19,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6916 states to 6916 states and 18351 transitions. [2022-03-15 19:04:19,035 INFO L78 Accepts]: Start accepts. Automaton has 6916 states and 18351 transitions. Word has length 42 [2022-03-15 19:04:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:19,035 INFO L470 AbstractCegarLoop]: Abstraction has 6916 states and 18351 transitions. [2022-03-15 19:04:19,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.7272727272727275) internal successors, (148), 21 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6916 states and 18351 transitions. [2022-03-15 19:04:19,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:19,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:19,043 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] [2022-03-15 19:04:19,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 19:04:19,043 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:19,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:19,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1739765805, now seen corresponding path program 13 times [2022-03-15 19:04:19,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:19,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660792422] [2022-03-15 19:04:19,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:19,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:19,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:19,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660792422] [2022-03-15 19:04:19,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660792422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:19,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:19,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 19:04:19,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2052581638] [2022-03-15 19:04:19,149 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:19,155 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:19,216 INFO L252 McrAutomatonBuilder]: Finished intersection with 198 states and 407 transitions. [2022-03-15 19:04:19,217 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:20,014 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [639375#(or (< ~s~0 ~m2~0) (<= (+ ~s~0 4) ~m1~0)), 639378#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~t~0)), 639377#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m2~0)), 639379#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m2~0)), 639373#(<= ~s~0 ~t~0), 639376#(or (<= (+ ~s~0 4) ~t~0) (< ~s~0 ~m2~0)), 639374#(<= (+ ~s~0 4) ~m1~0)] [2022-03-15 19:04:20,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 19:04:20,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 19:04:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:04:20,015 INFO L87 Difference]: Start difference. First operand 6916 states and 18351 transitions. Second operand has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:21,054 INFO L93 Difference]: Finished difference Result 10778 states and 27338 transitions. [2022-03-15 19:04:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 19:04:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:21,068 INFO L225 Difference]: With dead ends: 10778 [2022-03-15 19:04:21,069 INFO L226 Difference]: Without dead ends: 9256 [2022-03-15 19:04:21,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=529, Invalid=1277, Unknown=0, NotChecked=0, Total=1806 [2022-03-15 19:04:21,069 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 400 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:21,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 379 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 19:04:21,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9256 states. [2022-03-15 19:04:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9256 to 6140. [2022-03-15 19:04:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6140 states, 6139 states have (on average 2.6312102948362925) internal successors, (16153), 6139 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6140 states to 6140 states and 16153 transitions. [2022-03-15 19:04:21,159 INFO L78 Accepts]: Start accepts. Automaton has 6140 states and 16153 transitions. Word has length 42 [2022-03-15 19:04:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:21,159 INFO L470 AbstractCegarLoop]: Abstraction has 6140 states and 16153 transitions. [2022-03-15 19:04:21,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6140 states and 16153 transitions. [2022-03-15 19:04:21,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:21,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:21,166 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] [2022-03-15 19:04:21,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 19:04:21,166 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:21,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:21,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2048703513, now seen corresponding path program 14 times [2022-03-15 19:04:21,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:21,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680670452] [2022-03-15 19:04:21,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:21,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:21,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:21,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680670452] [2022-03-15 19:04:21,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680670452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:21,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:21,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 19:04:21,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1512168496] [2022-03-15 19:04:21,283 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:21,302 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:21,356 INFO L252 McrAutomatonBuilder]: Finished intersection with 180 states and 360 transitions. [2022-03-15 19:04:21,357 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:22,051 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [662505#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m2~0)), 662499#(<= ~s~0 ~t~0), 662504#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~t~0)), 662500#(<= (+ ~s~0 4) ~m4~0), 662501#(or (<= (+ ~s~0 4) ~m4~0) (< ~s~0 ~m2~0)), 662502#(or (<= (+ ~s~0 4) ~t~0) (< ~s~0 ~m2~0)), 662503#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m2~0))] [2022-03-15 19:04:22,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 19:04:22,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:22,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 19:04:22,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:04:22,052 INFO L87 Difference]: Start difference. First operand 6140 states and 16153 transitions. Second operand has 18 states, 18 states have (on average 6.888888888888889) internal successors, (124), 17 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:23,108 INFO L93 Difference]: Finished difference Result 9008 states and 22676 transitions. [2022-03-15 19:04:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-15 19:04:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.888888888888889) internal successors, (124), 17 states have internal predecessors, (124), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:23,122 INFO L225 Difference]: With dead ends: 9008 [2022-03-15 19:04:23,122 INFO L226 Difference]: Without dead ends: 7680 [2022-03-15 19:04:23,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=591, Invalid=1479, Unknown=0, NotChecked=0, Total=2070 [2022-03-15 19:04:23,123 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 449 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:23,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 388 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 19:04:23,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7680 states. [2022-03-15 19:04:23,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7680 to 5444. [2022-03-15 19:04:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6132647437075143) internal successors, (14224), 5443 states have internal predecessors, (14224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14224 transitions. [2022-03-15 19:04:23,246 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14224 transitions. Word has length 42 [2022-03-15 19:04:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:23,246 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14224 transitions. [2022-03-15 19:04:23,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.888888888888889) internal successors, (124), 17 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14224 transitions. [2022-03-15 19:04:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:23,252 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:23,252 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] [2022-03-15 19:04:23,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 19:04:23,252 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:23,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:23,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1459046805, now seen corresponding path program 15 times [2022-03-15 19:04:23,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:23,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797861570] [2022-03-15 19:04:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:23,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:23,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:23,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:23,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797861570] [2022-03-15 19:04:23,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797861570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:23,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:23,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 19:04:23,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [740039609] [2022-03-15 19:04:23,366 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:23,372 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:23,453 INFO L252 McrAutomatonBuilder]: Finished intersection with 260 states and 556 transitions. [2022-03-15 19:04:23,454 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:24,645 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [682469#(<= ~s~0 ~t~0), 682472#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m2~0)), 682470#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m2~0)), 682471#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~t~0)), 682468#(or (< ~s~0 ~m2~0) (<= (+ 3 ~s~0) ~m3~0))] [2022-03-15 19:04:24,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 19:04:24,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 19:04:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-03-15 19:04:24,646 INFO L87 Difference]: Start difference. First operand 5444 states and 14224 transitions. Second operand has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 14 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:25,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:25,368 INFO L93 Difference]: Finished difference Result 8084 states and 19590 transitions. [2022-03-15 19:04:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 19:04:25,375 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 14 states have internal predecessors, (118), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:25,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:25,386 INFO L225 Difference]: With dead ends: 8084 [2022-03-15 19:04:25,386 INFO L226 Difference]: Without dead ends: 6870 [2022-03-15 19:04:25,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=569, Unknown=0, NotChecked=0, Total=812 [2022-03-15 19:04:25,388 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 219 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:25,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 279 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 19:04:25,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6870 states. [2022-03-15 19:04:25,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6870 to 4744. [2022-03-15 19:04:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4744 states, 4743 states have (on average 2.53236348302762) internal successors, (12011), 4743 states have internal predecessors, (12011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:25,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4744 states to 4744 states and 12011 transitions. [2022-03-15 19:04:25,455 INFO L78 Accepts]: Start accepts. Automaton has 4744 states and 12011 transitions. Word has length 42 [2022-03-15 19:04:25,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:25,455 INFO L470 AbstractCegarLoop]: Abstraction has 4744 states and 12011 transitions. [2022-03-15 19:04:25,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 14 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4744 states and 12011 transitions. [2022-03-15 19:04:25,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:25,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:25,461 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] [2022-03-15 19:04:25,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 19:04:25,461 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:25,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1510432435, now seen corresponding path program 16 times [2022-03-15 19:04:25,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:25,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162551221] [2022-03-15 19:04:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:25,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:25,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162551221] [2022-03-15 19:04:25,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162551221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:25,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:25,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 19:04:25,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [272007985] [2022-03-15 19:04:25,566 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:25,572 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:25,624 INFO L252 McrAutomatonBuilder]: Finished intersection with 168 states and 329 transitions. [2022-03-15 19:04:25,625 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:26,298 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [700090#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m2~0)), 700086#(or (<= (+ ~s~0 4) ~m3~0) (< ~s~0 ~m2~0)), 700087#(or (<= (+ ~s~0 4) ~t~0) (< ~s~0 ~m2~0)), 700088#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m2~0)), 700089#(or (< ~s~0 ~m2~0) (<= (+ 2 ~s~0) ~t~0)), 700085#(<= ~s~0 ~t~0)] [2022-03-15 19:04:26,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 19:04:26,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:26,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 19:04:26,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:04:26,299 INFO L87 Difference]: Start difference. First operand 4744 states and 12011 transitions. Second operand has 18 states, 18 states have (on average 6.666666666666667) internal successors, (120), 17 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:27,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:27,178 INFO L93 Difference]: Finished difference Result 6252 states and 15199 transitions. [2022-03-15 19:04:27,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 19:04:27,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.666666666666667) internal successors, (120), 17 states have internal predecessors, (120), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:27,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:27,189 INFO L225 Difference]: With dead ends: 6252 [2022-03-15 19:04:27,189 INFO L226 Difference]: Without dead ends: 5766 [2022-03-15 19:04:27,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=1000, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 19:04:27,191 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 296 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:27,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 365 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 19:04:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5766 states. [2022-03-15 19:04:27,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5766 to 4408. [2022-03-15 19:04:27,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4408 states, 4407 states have (on average 2.521670070342637) internal successors, (11113), 4407 states have internal predecessors, (11113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:27,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 11113 transitions. [2022-03-15 19:04:27,263 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 11113 transitions. Word has length 42 [2022-03-15 19:04:27,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:27,263 INFO L470 AbstractCegarLoop]: Abstraction has 4408 states and 11113 transitions. [2022-03-15 19:04:27,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.666666666666667) internal successors, (120), 17 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 11113 transitions. [2022-03-15 19:04:27,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:27,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:27,270 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] [2022-03-15 19:04:27,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 19:04:27,270 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:27,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:27,270 INFO L85 PathProgramCache]: Analyzing trace with hash 80943263, now seen corresponding path program 17 times [2022-03-15 19:04:27,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:27,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484685618] [2022-03-15 19:04:27,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:27,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:27,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:27,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484685618] [2022-03-15 19:04:27,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484685618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:27,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:27,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 19:04:27,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1557380261] [2022-03-15 19:04:27,372 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:27,378 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:27,467 INFO L252 McrAutomatonBuilder]: Finished intersection with 282 states and 614 transitions. [2022-03-15 19:04:27,467 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:28,903 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [715210#(or (< ~s~0 ~m3~0) (<= (+ 2 ~s~0) ~m2~0)), 715211#(or (<= (+ 3 ~s~0) ~m2~0) (< ~s~0 ~m3~0)), 715212#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m3~0)), 715213#(or (<= (+ 2 ~s~0) ~t~0) (< ~s~0 ~m3~0)), 715209#(<= ~s~0 ~t~0), 715208#(< ~s~0 ~m2~0), 715214#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m3~0))] [2022-03-15 19:04:28,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 19:04:28,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:28,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 19:04:28,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 19:04:28,906 INFO L87 Difference]: Start difference. First operand 4408 states and 11113 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 15 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:29,401 INFO L93 Difference]: Finished difference Result 2350 states and 4924 transitions. [2022-03-15 19:04:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-15 19:04:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 15 states have internal predecessors, (117), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:29,402 INFO L225 Difference]: With dead ends: 2350 [2022-03-15 19:04:29,402 INFO L226 Difference]: Without dead ends: 452 [2022-03-15 19:04:29,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=278, Invalid=652, Unknown=0, NotChecked=0, Total=930 [2022-03-15 19:04:29,402 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 182 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:29,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 150 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 19:04:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-03-15 19:04:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 356. [2022-03-15 19:04:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 355 states have (on average 2.056338028169014) internal successors, (730), 355 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 730 transitions. [2022-03-15 19:04:29,408 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 730 transitions. Word has length 42 [2022-03-15 19:04:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:29,408 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 730 transitions. [2022-03-15 19:04:29,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 15 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:29,408 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 730 transitions. [2022-03-15 19:04:29,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-15 19:04:29,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:04:29,409 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] [2022-03-15 19:04:29,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 19:04:29,409 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-15 19:04:29,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:04:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1996797547, now seen corresponding path program 18 times [2022-03-15 19:04:29,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:04:29,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604815834] [2022-03-15 19:04:29,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:04:29,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:04:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:04:29,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:04:29,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:04:29,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604815834] [2022-03-15 19:04:29,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604815834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:04:29,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:04:29,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 19:04:29,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1971857108] [2022-03-15 19:04:29,516 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:04:29,522 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:04:29,575 INFO L252 McrAutomatonBuilder]: Finished intersection with 158 states and 310 transitions. [2022-03-15 19:04:29,575 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:04:30,227 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 9 new interpolants: [718323#(or (<= (+ 2 ~s~0) ~t~0) (< ~s~0 ~m3~0)), 718321#(or (<= (+ ~s~0 4) ~t~0) (< ~s~0 ~m3~0)), 718320#(or (<= (+ ~s~0 4) ~m2~0) (< ~s~0 ~m3~0)), 718319#(<= (+ ~s~0 4) ~m2~0), 718316#(<= ~s~0 ~t~0), 718317#(<= (+ 2 ~s~0) ~m2~0), 718318#(<= (+ 3 ~s~0) ~m2~0), 718324#(or (<= (+ ~s~0 1) ~t~0) (< ~s~0 ~m3~0)), 718322#(or (<= (+ 3 ~s~0) ~t~0) (< ~s~0 ~m3~0))] [2022-03-15 19:04:30,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 19:04:30,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:04:30,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 19:04:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:04:30,228 INFO L87 Difference]: Start difference. First operand 356 states and 730 transitions. Second operand has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 17 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:04:30,554 INFO L93 Difference]: Finished difference Result 386 states and 769 transitions. [2022-03-15 19:04:30,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 19:04:30,554 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 17 states have internal predecessors, (116), 0 states have call successors, (0), 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 42 [2022-03-15 19:04:30,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:04:30,554 INFO L225 Difference]: With dead ends: 386 [2022-03-15 19:04:30,555 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 19:04:30,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=269, Invalid=723, Unknown=0, NotChecked=0, Total=992 [2022-03-15 19:04:30,555 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 156 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:04:30,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 94 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:04:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 19:04:30,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 19:04:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:30,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 19:04:30,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2022-03-15 19:04:30,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:04:30,556 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 19:04:30,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 17 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:04:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 19:04:30,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 19:04:30,559 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-03-15 19:04:30,566 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-03-15 19:04:30,566 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-03-15 19:04:30,566 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining) [2022-03-15 19:04:30,566 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining) [2022-03-15 19:04:30,567 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining) [2022-03-15 19:04:30,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 19:04:30,571 INFO L732 BasicCegarLoop]: Path program histogram: [18] [2022-03-15 19:04:30,573 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 19:04:30,573 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 19:04:30,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 07:04:30 BasicIcfg [2022-03-15 19:04:30,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 19:04:30,576 INFO L158 Benchmark]: Toolchain (without parser) took 64551.85ms. Allocated memory was 185.6MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 130.4MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-15 19:04:30,576 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:04:30,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.25ms. Allocated memory was 185.6MB in the beginning and 243.3MB in the end (delta: 57.7MB). Free memory was 130.2MB in the beginning and 214.3MB in the end (delta: -84.1MB). Peak memory consumption was 5.6MB. Max. memory is 8.0GB. [2022-03-15 19:04:30,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.19ms. Allocated memory is still 243.3MB. Free memory was 214.3MB in the beginning and 212.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:04:30,577 INFO L158 Benchmark]: Boogie Preprocessor took 43.57ms. Allocated memory is still 243.3MB. Free memory was 212.2MB in the beginning and 210.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:04:30,581 INFO L158 Benchmark]: RCFGBuilder took 514.93ms. Allocated memory is still 243.3MB. Free memory was 210.6MB in the beginning and 188.1MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-03-15 19:04:30,581 INFO L158 Benchmark]: TraceAbstraction took 63610.55ms. Allocated memory was 243.3MB in the beginning and 4.4GB in the end (delta: 4.1GB). Free memory was 187.5MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-15 19:04:30,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.25ms. Allocated memory was 185.6MB in the beginning and 243.3MB in the end (delta: 57.7MB). Free memory was 130.2MB in the beginning and 214.3MB in the end (delta: -84.1MB). Peak memory consumption was 5.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.19ms. Allocated memory is still 243.3MB. Free memory was 214.3MB in the beginning and 212.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.57ms. Allocated memory is still 243.3MB. Free memory was 212.2MB in the beginning and 210.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 514.93ms. Allocated memory is still 243.3MB. Free memory was 210.6MB in the beginning and 188.1MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 63610.55ms. Allocated memory was 243.3MB in the beginning and 4.4GB in the end (delta: 4.1GB). Free memory was 187.5MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 179 PlacesBefore, 64 PlacesAfterwards, 165 TransitionsBefore, 48 TransitionsAfterwards, 2082 CoEnabledTransitionPairs, 8 FixpointIterations, 85 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 122 TotalNumberOfCompositions, 11829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5035, positive: 4712, positive conditional: 0, positive unconditional: 4712, negative: 323, negative conditional: 0, negative unconditional: 323, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1048, positive: 1014, positive conditional: 0, positive unconditional: 1014, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5035, positive: 3698, positive conditional: 0, positive unconditional: 3698, negative: 289, negative conditional: 0, negative unconditional: 289, unknown: 1048, unknown conditional: 0, unknown unconditional: 1048] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 210, Positive conditional cache size: 0, Positive unconditional cache size: 210, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 168]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 205 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 63.4s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.7s, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4780 SdHoareTripleChecker+Valid, 10.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4780 mSDsluCounter, 4451 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12907 mSDsCounter, 2172 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22757 IncrementalHoareTripleChecker+Invalid, 24929 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2172 mSolverCounterUnsat, 579 mSDtfsCounter, 22757 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4339 GetRequests, 3517 SyntacticMatches, 297 SemanticMatches, 525 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4430 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22236occurred in iteration=2, InterpolantAutomatonStates: 429, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 105450 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 756 NumberOfCodeBlocks, 756 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 738 ConstructedInterpolants, 0 QuantifiedInterpolants, 2844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 19:04:30,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...