/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 13:31:12,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 13:31:12,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 13:31:12,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 13:31:12,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 13:31:12,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 13:31:12,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 13:31:12,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 13:31:12,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 13:31:12,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 13:31:12,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 13:31:12,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 13:31:12,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 13:31:12,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 13:31:12,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 13:31:12,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 13:31:12,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 13:31:12,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 13:31:12,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 13:31:12,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 13:31:12,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 13:31:12,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 13:31:12,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 13:31:12,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 13:31:12,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-10 13:31:12,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-10 13:31:12,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-10 13:31:12,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-10 13:31:12,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-10 13:31:12,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-10 13:31:12,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-10 13:31:12,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-10 13:31:12,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-10 13:31:12,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-10 13:31:12,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-10 13:31:12,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-10 13:31:12,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-10 13:31:12,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-10 13:31:12,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 13:31:12,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 13:31:12,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 13:31:12,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-01-10 13:31:12,165 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 13:31:12,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 13:31:12,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 13:31:12,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 13:31:12,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 13:31:12,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 13:31:12,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 13:31:12,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 13:31:12,169 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 13:31:12,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 13:31:12,169 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 13:31:12,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 13:31:12,171 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 13:31:12,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 13:31:12,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 13:31:12,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 13:31:12,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 13:31:12,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 13:31:12,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 13:31:12,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 13:31:12,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 13:31:12,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 13:31:12,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 13:31:12,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 13:31:12,172 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 13:31:12,173 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 13:31:12,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 13:31:12,173 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 13:31:12,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 13:31:12,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 13:31:12,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 13:31:12,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 13:31:12,395 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 13:31:12,395 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 13:31:12,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2023-01-10 13:31:13,466 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 13:31:13,640 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 13:31:13,640 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2023-01-10 13:31:13,646 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b60e35a8/fbb06e073aed43d4bd37936a5cc1da6c/FLAG4f181f813 [2023-01-10 13:31:13,657 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b60e35a8/fbb06e073aed43d4bd37936a5cc1da6c [2023-01-10 13:31:13,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 13:31:13,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 13:31:13,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 13:31:13,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 13:31:13,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 13:31:13,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4eb785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13, skipping insertion in model container [2023-01-10 13:31:13,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 13:31:13,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 13:31:13,860 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c[2947,2960] [2023-01-10 13:31:13,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 13:31:13,876 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 13:31:13,895 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c[2947,2960] [2023-01-10 13:31:13,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 13:31:13,905 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 13:31:13,905 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 13:31:13,913 INFO L208 MainTranslator]: Completed translation [2023-01-10 13:31:13,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13 WrapperNode [2023-01-10 13:31:13,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 13:31:13,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 13:31:13,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 13:31:13,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 13:31:13,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,950 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 155 [2023-01-10 13:31:13,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 13:31:13,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 13:31:13,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 13:31:13,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 13:31:13,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,980 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 13:31:13,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 13:31:13,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 13:31:13,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 13:31:13,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (1/1) ... [2023-01-10 13:31:13,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 13:31:14,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:31:14,021 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) [2023-01-10 13:31:14,041 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 [2023-01-10 13:31:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 13:31:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 13:31:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 13:31:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 13:31:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 13:31:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 13:31:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 13:31:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 13:31:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-10 13:31:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-10 13:31:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-10 13:31:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 13:31:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 13:31:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 13:31:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 13:31:14,076 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-10 13:31:14,176 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 13:31:14,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 13:31:14,439 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 13:31:14,515 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 13:31:14,515 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-10 13:31:14,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:31:14 BoogieIcfgContainer [2023-01-10 13:31:14,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 13:31:14,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 13:31:14,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 13:31:14,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 13:31:14,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:31:13" (1/3) ... [2023-01-10 13:31:14,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20085b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:31:14, skipping insertion in model container [2023-01-10 13:31:14,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:31:13" (2/3) ... [2023-01-10 13:31:14,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20085b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:31:14, skipping insertion in model container [2023-01-10 13:31:14,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:31:14" (3/3) ... [2023-01-10 13:31:14,525 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-channel-sum.wvr.c [2023-01-10 13:31:14,532 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 13:31:14,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 13:31:14,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 13:31:14,541 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 13:31:14,606 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-10 13:31:14,644 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 13:31:14,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 13:31:14,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:31:14,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 13:31:14,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-01-10 13:31:14,680 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 13:31:14,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 13:31:14,692 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36967580, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 13:31:14,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 13:31:14,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:14,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1299534013, now seen corresponding path program 1 times [2023-01-10 13:31:14,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:14,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433688366] [2023-01-10 13:31:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:14,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-10 13:31:15,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:15,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433688366] [2023-01-10 13:31:15,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433688366] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:31:15,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:31:15,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 13:31:15,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655423558] [2023-01-10 13:31:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:31:15,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 13:31:15,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 13:31:15,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 13:31:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:15,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:15,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:15,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:15,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 13:31:15,250 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:15,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash 818861294, now seen corresponding path program 1 times [2023-01-10 13:31:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:15,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857226172] [2023-01-10 13:31:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:15,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 13:31:15,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:15,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857226172] [2023-01-10 13:31:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857226172] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:31:15,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:31:15,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-10 13:31:15,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570174100] [2023-01-10 13:31:15,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:31:15,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-10 13:31:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-10 13:31:15,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-10 13:31:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:15,857 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:15,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:15,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:15,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:15,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 13:31:15,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:15,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1037517542, now seen corresponding path program 1 times [2023-01-10 13:31:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:15,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269324041] [2023-01-10 13:31:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:15,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:16,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:16,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269324041] [2023-01-10 13:31:16,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269324041] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:31:16,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:31:16,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-10 13:31:16,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025857892] [2023-01-10 13:31:16,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:31:16,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-10 13:31:16,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:16,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-10 13:31:16,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-10 13:31:16,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:16,132 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:16,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:16,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:16,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:16,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:16,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:16,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:16,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-10 13:31:16,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:16,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:16,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1348189138, now seen corresponding path program 2 times [2023-01-10 13:31:16,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:16,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147469021] [2023-01-10 13:31:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:16,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:16,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:16,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147469021] [2023-01-10 13:31:16,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147469021] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:31:16,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:31:16,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-01-10 13:31:16,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608828971] [2023-01-10 13:31:16,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:31:16,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-10 13:31:16,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:16,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-10 13:31:16,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-01-10 13:31:16,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:16,771 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:16,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:16,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:16,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:16,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:16,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:17,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-10 13:31:17,013 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:17,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash -3948079, now seen corresponding path program 1 times [2023-01-10 13:31:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:17,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282579429] [2023-01-10 13:31:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:17,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 13:31:17,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282579429] [2023-01-10 13:31:17,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282579429] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:31:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981470273] [2023-01-10 13:31:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:17,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:31:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:31:17,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:31:17,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-10 13:31:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:17,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 52 conjunts are in the unsatisfiable core [2023-01-10 13:31:17,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:31:18,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-10 13:31:18,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 13:31:18,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 13:31:19,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2023-01-10 13:31:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:19,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:31:20,646 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:31:20,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2023-01-10 13:31:20,659 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:31:20,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 316 treesize of output 296 [2023-01-10 13:31:20,677 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:31:20,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 96 [2023-01-10 13:31:20,689 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:31:20,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 83 [2023-01-10 13:31:20,875 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:31:20,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2023-01-10 13:31:20,921 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2023-01-10 13:31:20,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 148 treesize of output 136 [2023-01-10 13:31:20,934 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2023-01-10 13:31:20,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 112 [2023-01-10 13:31:20,948 INFO L321 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2023-01-10 13:31:20,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 75 [2023-01-10 13:31:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:21,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981470273] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:31:21,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:31:21,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 28, 25] total 52 [2023-01-10 13:31:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387403040] [2023-01-10 13:31:21,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:31:21,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-01-10 13:31:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:21,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-01-10 13:31:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=2161, Unknown=26, NotChecked=0, Total=2652 [2023-01-10 13:31:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:21,672 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:21,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.365384615384615) internal successors, (279), 52 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:24,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-01-10 13:31:24,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-10 13:31:24,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:31:24,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:24,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1697719649, now seen corresponding path program 2 times [2023-01-10 13:31:24,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:24,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832719755] [2023-01-10 13:31:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:24,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-01-10 13:31:24,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:24,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832719755] [2023-01-10 13:31:24,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832719755] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:31:24,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:31:24,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 13:31:24,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895501945] [2023-01-10 13:31:24,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:31:24,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-10 13:31:24,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:24,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-10 13:31:24,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-01-10 13:31:24,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:24,997 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:24,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 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) [2023-01-10 13:31:24,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:24,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:24,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:24,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:24,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-01-10 13:31:24,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:25,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:31:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:25,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-10 13:31:25,287 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:25,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2136158680, now seen corresponding path program 3 times [2023-01-10 13:31:25,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:25,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960503167] [2023-01-10 13:31:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:25,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-10 13:31:25,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:25,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960503167] [2023-01-10 13:31:25,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960503167] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:31:25,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:31:25,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-10 13:31:25,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888454802] [2023-01-10 13:31:25,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:31:25,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-10 13:31:25,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:25,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-10 13:31:25,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-10 13:31:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:25,493 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:25,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:31:25,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:25,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:31:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:25,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-10 13:31:25,584 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:25,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:25,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1776711335, now seen corresponding path program 1 times [2023-01-10 13:31:25,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:25,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798728776] [2023-01-10 13:31:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:25,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:28,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:28,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798728776] [2023-01-10 13:31:28,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798728776] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:31:28,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12074685] [2023-01-10 13:31:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:28,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:31:28,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:31:28,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:31:28,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-10 13:31:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:28,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 59 conjunts are in the unsatisfiable core [2023-01-10 13:31:28,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:31:30,634 INFO L321 Elim1Store]: treesize reduction 58, result has 10.8 percent of original size [2023-01-10 13:31:30,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 21 [2023-01-10 13:31:30,756 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:30,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:31:31,992 INFO L321 Elim1Store]: treesize reduction 12, result has 81.5 percent of original size [2023-01-10 13:31:31,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 76 [2023-01-10 13:31:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:34,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12074685] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:31:34,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:31:34,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 28, 28] total 79 [2023-01-10 13:31:34,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255302054] [2023-01-10 13:31:34,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:31:34,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2023-01-10 13:31:34,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:34,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2023-01-10 13:31:34,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=646, Invalid=5516, Unknown=0, NotChecked=0, Total=6162 [2023-01-10 13:31:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:34,254 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:34,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 4.658227848101266) internal successors, (368), 79 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:34,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:34,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:34,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:34,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:34,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:31:34,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:34,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:34,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:37,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-01-10 13:31:37,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-10 13:31:38,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:31:38,050 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:38,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash 522035722, now seen corresponding path program 2 times [2023-01-10 13:31:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:38,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775655900] [2023-01-10 13:31:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:40,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:40,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775655900] [2023-01-10 13:31:40,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775655900] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:31:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567788334] [2023-01-10 13:31:40,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 13:31:40,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:31:40,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:31:40,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:31:40,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-10 13:31:40,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 13:31:40,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:31:40,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 68 conjunts are in the unsatisfiable core [2023-01-10 13:31:40,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:31:42,296 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:31:42,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 15 [2023-01-10 13:31:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:42,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:31:43,386 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:31:43,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 76 [2023-01-10 13:31:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:44,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567788334] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:31:44,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:31:44,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 30, 30] total 84 [2023-01-10 13:31:44,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799967930] [2023-01-10 13:31:44,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:31:44,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2023-01-10 13:31:44,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:44,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2023-01-10 13:31:44,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=845, Invalid=6127, Unknown=0, NotChecked=0, Total=6972 [2023-01-10 13:31:44,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:44,974 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:44,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 4.4523809523809526) internal successors, (374), 84 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-01-10 13:31:44,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-01-10 13:31:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-01-10 13:31:49,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-10 13:31:50,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:31:50,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:31:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:31:50,128 INFO L85 PathProgramCache]: Analyzing trace with hash 858450785, now seen corresponding path program 3 times [2023-01-10 13:31:50,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:31:50,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099181895] [2023-01-10 13:31:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:31:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:31:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:31:56,353 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:56,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:31:56,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099181895] [2023-01-10 13:31:56,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099181895] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:31:56,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296617624] [2023-01-10 13:31:56,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 13:31:56,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:31:56,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:31:56,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:31:56,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-10 13:31:56,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-01-10 13:31:56,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:31:56,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 64 conjunts are in the unsatisfiable core [2023-01-10 13:31:56,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:31:59,033 INFO L321 Elim1Store]: treesize reduction 93, result has 46.9 percent of original size [2023-01-10 13:31:59,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 71 treesize of output 101 [2023-01-10 13:31:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-01-10 13:31:59,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:32:03,149 INFO L321 Elim1Store]: treesize reduction 104, result has 80.5 percent of original size [2023-01-10 13:32:03,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 150 treesize of output 486 [2023-01-10 13:32:05,171 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:07,281 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:07,297 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:07,306 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:07,330 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:07,359 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:08,934 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:09,929 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:11,057 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:11,067 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:11,078 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:11,098 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:11,125 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:11,943 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:13,175 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:13,186 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:13,516 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:13,563 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:13,957 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:14,853 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:15,327 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:17,959 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:18,039 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:18,107 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:18,150 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:18,221 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:18,276 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-10 13:32:18,466 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:18,488 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:18,698 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:21,694 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-10 13:32:22,906 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-01-10 13:32:22,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296617624] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:32:22,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:32:22,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 31, 31] total 95 [2023-01-10 13:32:22,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388980852] [2023-01-10 13:32:22,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:32:22,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-01-10 13:32:22,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:32:22,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-01-10 13:32:22,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=8131, Unknown=0, NotChecked=0, Total=8930 [2023-01-10 13:32:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:22,910 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:32:22,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 4.536842105263158) internal successors, (431), 95 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2023-01-10 13:32:22,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:34:15,385 WARN L222 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 118 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:36:27,020 WARN L222 SmtUtils]: Spent 2.13m on a formula simplification. DAG size of input: 111 DAG size of output: 98 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:38:06,300 WARN L222 SmtUtils]: Spent 1.65m on a formula simplification. DAG size of input: 117 DAG size of output: 104 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:39:47,444 WARN L222 SmtUtils]: Spent 1.60m on a formula simplification. DAG size of input: 131 DAG size of output: 117 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:39:49,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-10 13:41:29,813 WARN L222 SmtUtils]: Spent 1.44m on a formula simplification. DAG size of input: 125 DAG size of output: 111 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:41:32,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-10 13:42:36,635 WARN L222 SmtUtils]: Spent 52.47s on a formula simplification. DAG size of input: 120 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:43:25,026 WARN L222 SmtUtils]: Spent 48.09s on a formula simplification. DAG size of input: 141 DAG size of output: 118 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:45:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:45:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:45:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:45:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 13:45:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 13:45:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:45:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 13:45:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-01-10 13:45:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-01-10 13:45:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2023-01-10 13:45:04,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-10 13:45:05,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-01-10 13:45:05,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:45:05,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:45:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash 996741163, now seen corresponding path program 4 times [2023-01-10 13:45:05,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:45:05,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548549748] [2023-01-10 13:45:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:45:05,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:45:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:45:10,690 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 3 proven. 305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:45:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:45:10,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548549748] [2023-01-10 13:45:10,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548549748] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:45:10,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475988023] [2023-01-10 13:45:10,691 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 13:45:10,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:45:10,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:45:10,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:45:10,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-10 13:45:10,789 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 13:45:10,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:45:10,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 90 conjunts are in the unsatisfiable core [2023-01-10 13:45:10,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-01-10 13:45:12,891 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-01-10 13:45:12,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-10 13:45:12,917 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 13:45:12,919 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 13:45:12,919 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 13:45:13,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:45:13,092 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 233 with TraceHistMax 6,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 79 known predicates. [2023-01-10 13:45:13,102 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1] [2023-01-10 13:45:13,103 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2023-01-10 13:45:13,104 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-10 13:45:13,104 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-10 13:45:13,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:45:13 BasicIcfg [2023-01-10 13:45:13,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-10 13:45:13,107 INFO L158 Benchmark]: Toolchain (without parser) took 839446.76ms. Allocated memory was 264.2MB in the beginning and 846.2MB in the end (delta: 582.0MB). Free memory was 218.9MB in the beginning and 528.6MB in the end (delta: -309.7MB). Peak memory consumption was 274.6MB. Max. memory is 8.0GB. [2023-01-10 13:45:13,107 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 181.4MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-01-10 13:45:13,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.36ms. Allocated memory is still 264.2MB. Free memory was 218.7MB in the beginning and 207.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-01-10 13:45:13,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.12ms. Allocated memory is still 264.2MB. Free memory was 207.1MB in the beginning and 205.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-01-10 13:45:13,108 INFO L158 Benchmark]: Boogie Preprocessor took 34.72ms. Allocated memory is still 264.2MB. Free memory was 205.3MB in the beginning and 203.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-01-10 13:45:13,108 INFO L158 Benchmark]: RCFGBuilder took 531.11ms. Allocated memory is still 264.2MB. Free memory was 203.6MB in the beginning and 183.3MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-01-10 13:45:13,108 INFO L158 Benchmark]: TraceAbstraction took 838587.09ms. Allocated memory was 264.2MB in the beginning and 846.2MB in the end (delta: 582.0MB). Free memory was 182.2MB in the beginning and 528.6MB in the end (delta: -346.4MB). Peak memory consumption was 237.9MB. Max. memory is 8.0GB. [2023-01-10 13:45:13,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 181.4MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 252.36ms. Allocated memory is still 264.2MB. Free memory was 218.7MB in the beginning and 207.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.12ms. Allocated memory is still 264.2MB. Free memory was 207.1MB in the beginning and 205.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.72ms. Allocated memory is still 264.2MB. Free memory was 205.3MB in the beginning and 203.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 531.11ms. Allocated memory is still 264.2MB. Free memory was 203.6MB in the beginning and 183.3MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 838587.09ms. Allocated memory was 264.2MB in the beginning and 846.2MB in the end (delta: 582.0MB). Free memory was 182.2MB in the beginning and 528.6MB in the end (delta: -346.4MB). Peak memory consumption was 237.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12531, independent: 10353, independent conditional: 10353, independent unconditional: 0, dependent: 2178, dependent conditional: 2178, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10372, independent: 10353, independent conditional: 10353, independent unconditional: 0, dependent: 19, dependent conditional: 19, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10372, independent: 10353, independent conditional: 10353, independent unconditional: 0, dependent: 19, dependent conditional: 19, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10455, independent: 10353, independent conditional: 0, independent unconditional: 10353, dependent: 102, dependent conditional: 83, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10455, independent: 10353, independent conditional: 0, independent unconditional: 10353, dependent: 102, dependent conditional: 58, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10455, independent: 10353, independent conditional: 0, independent unconditional: 10353, dependent: 102, dependent conditional: 58, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 437, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 22, dependent conditional: 19, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 437, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 22, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 22, dependent conditional: 19, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 22, dependent conditional: 19, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 97, dependent conditional: 63, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10455, independent: 9938, independent conditional: 0, independent unconditional: 9938, dependent: 80, dependent conditional: 39, dependent unconditional: 41, unknown: 437, unknown conditional: 19, unknown unconditional: 418] , Statistics on independence cache: Total cache size (in pairs): 437, Positive cache size: 415, Positive conditional cache size: 0, Positive unconditional cache size: 415, Negative cache size: 22, Negative conditional cache size: 19, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 25, Maximal queried relation: 9, Independence queries for same thread: 2159 - StatisticsResult: Traversal Statistics Data States: 315, Transitions: 357, Traversal time: 124164984.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 14 - StatisticsResult: Traversal Statistics Data States: 315, Transitions: 362, Traversal time: 54554123.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 14 - StatisticsResult: Traversal Statistics Data States: 93, Transitions: 97, Traversal time: 63856923.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 0 - StatisticsResult: Traversal Statistics Data States: 537, Transitions: 626, Traversal time: 205367320.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 27 - StatisticsResult: Traversal Statistics Data States: 544, Transitions: 633, Traversal time: 232152176.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 27 - StatisticsResult: Traversal Statistics Data States: 685, Transitions: 794, Traversal time: 2584424454.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 34 - StatisticsResult: Traversal Statistics Data States: 1048, Transitions: 1210, Traversal time: 238533427.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 54 - StatisticsResult: Traversal Statistics Data States: 952, Transitions: 1119, Traversal time: 62181925.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 56 - StatisticsResult: Traversal Statistics Data States: 960, Transitions: 1127, Traversal time: 3055476716.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 56 - StatisticsResult: Traversal Statistics Data States: 1390, Transitions: 1638, Traversal time: 4207376013.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 84 - StatisticsResult: Traversal Statistics Data States: 2548, Transitions: 3013, Traversal time: 730779026023.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 161 - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 233 with TraceHistMax 6,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 79 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 161 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 838440201425.0ns, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 774566010662.0ns, FeasibilityCheckTime: 62757201324.0ns, RefinementTime: 51526424.0ns, AutomataDifference: 0.0ns, DeadEndRemovalTime: 0.0ns, HoareAnnotationTime: 0.0ns, InitialAbstractionConstructionTime: 15230187.0ns, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 7386 SdHoareTripleChecker+Valid, 19209009275.0ns IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7386 mSDsluCounter, 29240 SdHoareTripleChecker+Invalid, 17617554999.0ns Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27750 mSDsCounter, 600 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20020 IncrementalHoareTripleChecker+Invalid, 20631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 600 mSolverCounterUnsat, 1490 mSDtfsCounter, 20020 mSolverCounterSat, 180609432.0ns SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: No data available, 0.0ns BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 486, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ns DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 109728274.0ns SsaConstructionTime, 824541026.0ns SatisfiabilityAnalysisTime, 53457505040.0ns InterpolantComputationTime, 1842 NumberOfCodeBlocks, 1834 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2408 ConstructedInterpolants, 126 QuantifiedInterpolants, 42772 SizeOfPredicates, 141 NumberOfNonLiveVariables, 1253 ConjunctsInSsa, 243 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 183/723 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown