/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.07.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:01:17,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:01:17,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:01:17,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 02:01:17,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 02:01:17,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 02:01:17,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 02:01:17,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 02:01:17,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 02:01:17,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 02:01:17,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 02:01:17,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 02:01:17,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 02:01:17,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 02:01:17,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 02:01:17,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 02:01:17,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 02:01:17,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 02:01:17,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 02:01:17,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 02:01:17,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 02:01:17,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 02:01:17,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 02:01:17,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 02:01:17,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 02:01:17,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 02:01:17,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 02:01:17,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 02:01:17,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 02:01:17,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 02:01:17,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 02:01:17,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 02:01:17,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 02:01:17,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 02:01:17,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 02:01:17,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 02:01:17,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 02:01:17,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 02:01:17,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:01:17,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:01:17,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:01:17,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 02:01:17,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:01:17,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:01:17,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:01:17,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:01:17,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:01:17,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:01:17,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:01:17,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:01:17,691 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:01:17,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:01:17,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:01:17,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:01:17,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:01:17,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:01:17,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:01:17,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:01:17,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:01:17,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:01:17,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:01:17,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:01:17,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:01:17,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:01:17,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:01:17,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:01:17,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:01:17,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:01:17,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:01:17,695 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:01:17,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:01:17,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:01:17,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:01:17,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:01:17,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:01:17,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:01:17,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:01:17,905 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:01:17,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.07.cil-1.c [2022-01-10 02:01:17,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65c5981af/bda7d1d7082a4857b74d4deacca48eed/FLAG46c79b75d [2022-01-10 02:01:18,793 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:01:18,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.07.cil-1.c [2022-01-10 02:01:18,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65c5981af/bda7d1d7082a4857b74d4deacca48eed/FLAG46c79b75d [2022-01-10 02:01:18,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65c5981af/bda7d1d7082a4857b74d4deacca48eed [2022-01-10 02:01:18,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:01:18,980 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:01:18,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:01:18,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:01:18,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:01:18,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:01:18" (1/1) ... [2022-01-10 02:01:18,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b5101c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:18, skipping insertion in model container [2022-01-10 02:01:18,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:01:18" (1/1) ... [2022-01-10 02:01:18,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:01:19,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:01:20,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.07.cil-1.c[377340,377353] [2022-01-10 02:01:20,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.07.cil-1.c[383339,383352] [2022-01-10 02:01:20,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:01:20,979 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:01:21,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.07.cil-1.c[377340,377353] [2022-01-10 02:01:21,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.07.cil-1.c[383339,383352] [2022-01-10 02:01:21,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:01:21,835 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:01:21,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21 WrapperNode [2022-01-10 02:01:21,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:01:21,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:01:21,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:01:21,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:01:21,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:21,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,293 INFO L137 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12909 [2022-01-10 02:01:22,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:01:22,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:01:22,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:01:22,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:01:22,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:01:22,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:01:22,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:01:22,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:01:22,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (1/1) ... [2022-01-10 02:01:22,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:01:22,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:01:22,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 02:01:22,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 02:01:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:01:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 02:01:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 02:01:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 02:01:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 02:01:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 02:01:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 02:01:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 02:01:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 02:01:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 02:01:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 02:01:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 02:01:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 02:01:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:01:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:01:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:01:22,967 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:01:22,968 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:01:28,916 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:01:28,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:01:28,949 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-01-10 02:01:28,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:01:28 BoogieIcfgContainer [2022-01-10 02:01:28,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:01:28,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:01:28,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:01:28,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:01:28,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:01:18" (1/3) ... [2022-01-10 02:01:28,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125fcd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:01:28, skipping insertion in model container [2022-01-10 02:01:28,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:01:21" (2/3) ... [2022-01-10 02:01:28,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125fcd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:01:28, skipping insertion in model container [2022-01-10 02:01:28,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:01:28" (3/3) ... [2022-01-10 02:01:28,960 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.07.cil-1.c [2022-01-10 02:01:28,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:01:28,964 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:01:29,015 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:01:29,021 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 02:01:29,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:01:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 2440 states, 2410 states have (on average 1.849792531120332) internal successors, (4458), 2413 states have internal predecessors, (4458), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-01-10 02:01:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:29,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:29,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:29,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:29,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:29,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1176565078, now seen corresponding path program 1 times [2022-01-10 02:01:29,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:29,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040517228] [2022-01-10 02:01:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:29,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:29,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:29,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:29,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:29,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:29,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:29,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040517228] [2022-01-10 02:01:29,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040517228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:29,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:29,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:01:29,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120177295] [2022-01-10 02:01:29,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:29,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:01:29,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:01:29,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:01:29,584 INFO L87 Difference]: Start difference. First operand has 2440 states, 2410 states have (on average 1.849792531120332) internal successors, (4458), 2413 states have internal predecessors, (4458), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:30,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:30,715 INFO L93 Difference]: Finished difference Result 4955 states and 9127 transitions. [2022-01-10 02:01:30,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:01:30,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:30,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:30,742 INFO L225 Difference]: With dead ends: 4955 [2022-01-10 02:01:30,743 INFO L226 Difference]: Without dead ends: 2460 [2022-01-10 02:01:30,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:01:30,760 INFO L933 BasicCegarLoop]: 4453 mSDtfsCounter, 653 mSDsluCounter, 12335 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 16788 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:30,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 16788 Invalid, 508 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 02:01:30,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2022-01-10 02:01:30,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2373. [2022-01-10 02:01:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2344 states have (on average 1.83660409556314) internal successors, (4305), 2346 states have internal predecessors, (4305), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-01-10 02:01:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 4347 transitions. [2022-01-10 02:01:30,896 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 4347 transitions. Word has length 123 [2022-01-10 02:01:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:30,896 INFO L470 AbstractCegarLoop]: Abstraction has 2373 states and 4347 transitions. [2022-01-10 02:01:30,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 4347 transitions. [2022-01-10 02:01:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:30,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:30,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:30,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:01:30,901 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash 796600300, now seen corresponding path program 1 times [2022-01-10 02:01:30,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:30,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529315556] [2022-01-10 02:01:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:30,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:31,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:31,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:31,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529315556] [2022-01-10 02:01:31,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529315556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:31,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:31,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 02:01:31,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45505435] [2022-01-10 02:01:31,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:31,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 02:01:31,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:31,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 02:01:31,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 02:01:31,143 INFO L87 Difference]: Start difference. First operand 2373 states and 4347 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:32,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:32,904 INFO L93 Difference]: Finished difference Result 3029 states and 5394 transitions. [2022-01-10 02:01:32,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 02:01:32,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:32,918 INFO L225 Difference]: With dead ends: 3029 [2022-01-10 02:01:32,918 INFO L226 Difference]: Without dead ends: 2792 [2022-01-10 02:01:32,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:01:32,921 INFO L933 BasicCegarLoop]: 4416 mSDtfsCounter, 4935 mSDsluCounter, 12503 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 16919 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:32,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4949 Valid, 16919 Invalid, 1381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 02:01:32,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2022-01-10 02:01:32,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2619. [2022-01-10 02:01:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2567 states have (on average 1.8137904168289833) internal successors, (4656), 2570 states have internal predecessors, (4656), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2022-01-10 02:01:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 4733 transitions. [2022-01-10 02:01:32,997 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 4733 transitions. Word has length 123 [2022-01-10 02:01:32,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:32,997 INFO L470 AbstractCegarLoop]: Abstraction has 2619 states and 4733 transitions. [2022-01-10 02:01:32,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:32,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 4733 transitions. [2022-01-10 02:01:32,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:32,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:33,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:33,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:01:33,000 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:33,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash 71036272, now seen corresponding path program 1 times [2022-01-10 02:01:33,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:33,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242625950] [2022-01-10 02:01:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:33,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:33,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:33,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242625950] [2022-01-10 02:01:33,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242625950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:33,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:33,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:33,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005978096] [2022-01-10 02:01:33,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:33,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:33,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:33,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:33,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:33,130 INFO L87 Difference]: Start difference. First operand 2619 states and 4733 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:35,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:35,161 INFO L93 Difference]: Finished difference Result 3617 states and 6323 transitions. [2022-01-10 02:01:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:01:35,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:35,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:35,178 INFO L225 Difference]: With dead ends: 3617 [2022-01-10 02:01:35,178 INFO L226 Difference]: Without dead ends: 3134 [2022-01-10 02:01:35,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:01:35,184 INFO L933 BasicCegarLoop]: 4607 mSDtfsCounter, 4944 mSDsluCounter, 17064 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4958 SdHoareTripleChecker+Valid, 21671 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:35,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4958 Valid, 21671 Invalid, 2062 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-10 02:01:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2022-01-10 02:01:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 2848. [2022-01-10 02:01:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2773 states have (on average 1.7933645870897945) internal successors, (4973), 2777 states have internal predecessors, (4973), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2022-01-10 02:01:35,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 5084 transitions. [2022-01-10 02:01:35,296 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 5084 transitions. Word has length 123 [2022-01-10 02:01:35,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:35,296 INFO L470 AbstractCegarLoop]: Abstraction has 2848 states and 5084 transitions. [2022-01-10 02:01:35,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:35,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 5084 transitions. [2022-01-10 02:01:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:35,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:35,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:35,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:01:35,299 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:35,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1460330286, now seen corresponding path program 1 times [2022-01-10 02:01:35,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:35,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952661046] [2022-01-10 02:01:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:35,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:35,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:35,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:35,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:35,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:35,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952661046] [2022-01-10 02:01:35,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952661046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:35,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:35,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:35,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426946288] [2022-01-10 02:01:35,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:35,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:35,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:35,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:35,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:35,450 INFO L87 Difference]: Start difference. First operand 2848 states and 5084 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:37,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:37,468 INFO L93 Difference]: Finished difference Result 4483 states and 7682 transitions. [2022-01-10 02:01:37,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:01:37,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:37,484 INFO L225 Difference]: With dead ends: 4483 [2022-01-10 02:01:37,484 INFO L226 Difference]: Without dead ends: 3771 [2022-01-10 02:01:37,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:01:37,487 INFO L933 BasicCegarLoop]: 4599 mSDtfsCounter, 4941 mSDsluCounter, 17064 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4955 SdHoareTripleChecker+Valid, 21663 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:37,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4955 Valid, 21663 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-10 02:01:37,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3771 states. [2022-01-10 02:01:37,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3771 to 3307. [2022-01-10 02:01:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 3186 states have (on average 1.7602008788449466) internal successors, (5608), 3192 states have internal predecessors, (5608), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2022-01-10 02:01:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 5791 transitions. [2022-01-10 02:01:37,601 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 5791 transitions. Word has length 123 [2022-01-10 02:01:37,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:37,602 INFO L470 AbstractCegarLoop]: Abstraction has 3307 states and 5791 transitions. [2022-01-10 02:01:37,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:37,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 5791 transitions. [2022-01-10 02:01:37,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:37,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:37,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:37,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:01:37,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:37,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:37,605 INFO L85 PathProgramCache]: Analyzing trace with hash -573063760, now seen corresponding path program 1 times [2022-01-10 02:01:37,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:37,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343250239] [2022-01-10 02:01:37,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:37,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:37,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:37,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343250239] [2022-01-10 02:01:37,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343250239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:37,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:37,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:37,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420357481] [2022-01-10 02:01:37,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:37,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:37,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:37,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:37,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:37,718 INFO L87 Difference]: Start difference. First operand 3307 states and 5791 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:39,495 INFO L93 Difference]: Finished difference Result 6150 states and 10285 transitions. [2022-01-10 02:01:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:01:39,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:39,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:39,515 INFO L225 Difference]: With dead ends: 6150 [2022-01-10 02:01:39,515 INFO L226 Difference]: Without dead ends: 4979 [2022-01-10 02:01:39,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:01:39,521 INFO L933 BasicCegarLoop]: 4595 mSDtfsCounter, 4937 mSDsluCounter, 17064 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 21659 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:39,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 21659 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 02:01:39,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2022-01-10 02:01:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4226. [2022-01-10 02:01:39,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4226 states, 4013 states have (on average 1.7139297283827561) internal successors, (6878), 4023 states have internal predecessors, (6878), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2022-01-10 02:01:39,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4226 states to 4226 states and 7211 transitions. [2022-01-10 02:01:39,675 INFO L78 Accepts]: Start accepts. Automaton has 4226 states and 7211 transitions. Word has length 123 [2022-01-10 02:01:39,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:39,676 INFO L470 AbstractCegarLoop]: Abstraction has 4226 states and 7211 transitions. [2022-01-10 02:01:39,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4226 states and 7211 transitions. [2022-01-10 02:01:39,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:39,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:39,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:39,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:01:39,679 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:39,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1855194862, now seen corresponding path program 1 times [2022-01-10 02:01:39,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:39,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369327553] [2022-01-10 02:01:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:39,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:39,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:39,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:39,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:39,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:39,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369327553] [2022-01-10 02:01:39,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369327553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:39,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:39,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:39,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853491655] [2022-01-10 02:01:39,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:39,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:39,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:39,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:39,780 INFO L87 Difference]: Start difference. First operand 4226 states and 7211 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:41,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:41,719 INFO L93 Difference]: Finished difference Result 9483 states and 15507 transitions. [2022-01-10 02:01:41,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:01:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:41,753 INFO L225 Difference]: With dead ends: 9483 [2022-01-10 02:01:41,753 INFO L226 Difference]: Without dead ends: 7393 [2022-01-10 02:01:41,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:01:41,764 INFO L933 BasicCegarLoop]: 4591 mSDtfsCounter, 4933 mSDsluCounter, 17064 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4947 SdHoareTripleChecker+Valid, 21655 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:41,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4947 Valid, 21655 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 02:01:41,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7393 states. [2022-01-10 02:01:42,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7393 to 6069. [2022-01-10 02:01:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 5672 states have (on average 1.6614950634696757) internal successors, (9424), 5690 states have internal predecessors, (9424), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2022-01-10 02:01:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 10075 transitions. [2022-01-10 02:01:42,097 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 10075 transitions. Word has length 123 [2022-01-10 02:01:42,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:42,098 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 10075 transitions. [2022-01-10 02:01:42,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:42,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 10075 transitions. [2022-01-10 02:01:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:42,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:42,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:42,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:01:42,103 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:42,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:42,104 INFO L85 PathProgramCache]: Analyzing trace with hash 548052464, now seen corresponding path program 1 times [2022-01-10 02:01:42,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:42,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147380213] [2022-01-10 02:01:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:42,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:42,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:42,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:42,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:42,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147380213] [2022-01-10 02:01:42,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147380213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:42,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:42,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:42,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271833716] [2022-01-10 02:01:42,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:42,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:42,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:42,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:42,219 INFO L87 Difference]: Start difference. First operand 6069 states and 10075 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:44,117 INFO L93 Difference]: Finished difference Result 16148 states and 26009 transitions. [2022-01-10 02:01:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:01:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:44,173 INFO L225 Difference]: With dead ends: 16148 [2022-01-10 02:01:44,173 INFO L226 Difference]: Without dead ends: 12215 [2022-01-10 02:01:44,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:01:44,195 INFO L933 BasicCegarLoop]: 4585 mSDtfsCounter, 4932 mSDsluCounter, 17064 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4946 SdHoareTripleChecker+Valid, 21649 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:44,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4946 Valid, 21649 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 02:01:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12215 states. [2022-01-10 02:01:44,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12215 to 9768. [2022-01-10 02:01:44,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9768 states, 9003 states have (on average 1.6143507719649006) internal successors, (14534), 9037 states have internal predecessors, (14534), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2022-01-10 02:01:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9768 states to 9768 states and 15875 transitions. [2022-01-10 02:01:44,802 INFO L78 Accepts]: Start accepts. Automaton has 9768 states and 15875 transitions. Word has length 123 [2022-01-10 02:01:44,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:44,805 INFO L470 AbstractCegarLoop]: Abstraction has 9768 states and 15875 transitions. [2022-01-10 02:01:44,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 9768 states and 15875 transitions. [2022-01-10 02:01:44,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:44,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:44,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:44,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:01:44,813 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:44,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1849418066, now seen corresponding path program 1 times [2022-01-10 02:01:44,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:44,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149623370] [2022-01-10 02:01:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:44,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:44,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:44,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:44,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:44,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:44,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149623370] [2022-01-10 02:01:44,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149623370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:44,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:44,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:44,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926845515] [2022-01-10 02:01:44,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:44,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:44,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:44,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:44,941 INFO L87 Difference]: Start difference. First operand 9768 states and 15875 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:46,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:46,160 INFO L93 Difference]: Finished difference Result 19942 states and 32204 transitions. [2022-01-10 02:01:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 02:01:46,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:46,209 INFO L225 Difference]: With dead ends: 19942 [2022-01-10 02:01:46,209 INFO L226 Difference]: Without dead ends: 12310 [2022-01-10 02:01:46,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:01:46,237 INFO L933 BasicCegarLoop]: 4350 mSDtfsCounter, 4776 mSDsluCounter, 12356 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 16706 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:46,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4791 Valid, 16706 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 02:01:46,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12310 states. [2022-01-10 02:01:46,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12310 to 9768. [2022-01-10 02:01:46,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9768 states, 9003 states have (on average 1.6106853271131845) internal successors, (14501), 9037 states have internal predecessors, (14501), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2022-01-10 02:01:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9768 states to 9768 states and 15842 transitions. [2022-01-10 02:01:46,715 INFO L78 Accepts]: Start accepts. Automaton has 9768 states and 15842 transitions. Word has length 123 [2022-01-10 02:01:46,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:46,716 INFO L470 AbstractCegarLoop]: Abstraction has 9768 states and 15842 transitions. [2022-01-10 02:01:46,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:46,716 INFO L276 IsEmpty]: Start isEmpty. Operand 9768 states and 15842 transitions. [2022-01-10 02:01:46,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:46,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:46,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:46,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:01:46,722 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:46,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:46,723 INFO L85 PathProgramCache]: Analyzing trace with hash 539145964, now seen corresponding path program 1 times [2022-01-10 02:01:46,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:46,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458104840] [2022-01-10 02:01:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:46,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:46,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:46,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458104840] [2022-01-10 02:01:46,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458104840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:46,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:46,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:46,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504876227] [2022-01-10 02:01:46,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:46,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:46,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:46,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:46,930 INFO L87 Difference]: Start difference. First operand 9768 states and 15842 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:50,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:50,090 INFO L93 Difference]: Finished difference Result 32836 states and 52097 transitions. [2022-01-10 02:01:50,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:01:50,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:50,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:50,179 INFO L225 Difference]: With dead ends: 32836 [2022-01-10 02:01:50,179 INFO L226 Difference]: Without dead ends: 25204 [2022-01-10 02:01:50,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:01:50,210 INFO L933 BasicCegarLoop]: 4569 mSDtfsCounter, 5211 mSDsluCounter, 17056 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5233 SdHoareTripleChecker+Valid, 21625 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:50,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5233 Valid, 21625 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 02:01:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25204 states. [2022-01-10 02:01:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25204 to 17165. [2022-01-10 02:01:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17165 states, 15696 states have (on average 1.5779179408766564) internal successors, (24767), 15762 states have internal predecessors, (24767), 1013 states have call successors, (1013), 390 states have call predecessors, (1013), 454 states have return successors, (1806), 1076 states have call predecessors, (1806), 1013 states have call successors, (1806) [2022-01-10 02:01:51,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17165 states to 17165 states and 27586 transitions. [2022-01-10 02:01:51,107 INFO L78 Accepts]: Start accepts. Automaton has 17165 states and 27586 transitions. Word has length 123 [2022-01-10 02:01:51,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:51,107 INFO L470 AbstractCegarLoop]: Abstraction has 17165 states and 27586 transitions. [2022-01-10 02:01:51,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17165 states and 27586 transitions. [2022-01-10 02:01:51,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:51,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:51,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:51,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:01:51,120 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:51,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:51,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2140217070, now seen corresponding path program 1 times [2022-01-10 02:01:51,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:51,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530047159] [2022-01-10 02:01:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:51,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:51,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:51,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:51,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:51,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530047159] [2022-01-10 02:01:51,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530047159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:51,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:51,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:51,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272111658] [2022-01-10 02:01:51,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:51,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:51,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:51,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:51,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:51,236 INFO L87 Difference]: Start difference. First operand 17165 states and 27586 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:55,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:01:55,976 INFO L93 Difference]: Finished difference Result 61867 states and 98487 transitions. [2022-01-10 02:01:55,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:01:55,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:01:55,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:01:56,168 INFO L225 Difference]: With dead ends: 61867 [2022-01-10 02:01:56,168 INFO L226 Difference]: Without dead ends: 46838 [2022-01-10 02:01:56,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:01:56,223 INFO L933 BasicCegarLoop]: 4671 mSDtfsCounter, 4981 mSDsluCounter, 17053 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4994 SdHoareTripleChecker+Valid, 21724 SdHoareTripleChecker+Invalid, 2324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-10 02:01:56,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4994 Valid, 21724 Invalid, 2324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-10 02:01:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46838 states. [2022-01-10 02:01:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46838 to 31602. [2022-01-10 02:01:58,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31602 states, 28757 states have (on average 1.5581945265500574) internal successors, (44809), 28887 states have internal predecessors, (44809), 1941 states have call successors, (1941), 774 states have call predecessors, (1941), 902 states have return successors, (4256), 2068 states have call predecessors, (4256), 1941 states have call successors, (4256) [2022-01-10 02:01:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31602 states to 31602 states and 51006 transitions. [2022-01-10 02:01:58,115 INFO L78 Accepts]: Start accepts. Automaton has 31602 states and 51006 transitions. Word has length 123 [2022-01-10 02:01:58,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:01:58,115 INFO L470 AbstractCegarLoop]: Abstraction has 31602 states and 51006 transitions. [2022-01-10 02:01:58,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:01:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 31602 states and 51006 transitions. [2022-01-10 02:01:58,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 02:01:58,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:01:58,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:01:58,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 02:01:58,137 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:01:58,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:01:58,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1083485868, now seen corresponding path program 1 times [2022-01-10 02:01:58,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:01:58,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612661228] [2022-01-10 02:01:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:01:58,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:01:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:01:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:58,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-01-10 02:01:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:58,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-01-10 02:01:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:58,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 02:01:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:58,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 02:01:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:01:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:01:58,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:01:58,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612661228] [2022-01-10 02:01:58,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612661228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:01:58,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:01:58,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:01:58,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561949256] [2022-01-10 02:01:58,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:01:58,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:01:58,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:01:58,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:01:58,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:01:58,237 INFO L87 Difference]: Start difference. First operand 31602 states and 51006 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:05,800 INFO L93 Difference]: Finished difference Result 117782 states and 189717 transitions. [2022-01-10 02:02:05,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:02:05,801 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 123 [2022-01-10 02:02:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:06,155 INFO L225 Difference]: With dead ends: 117782 [2022-01-10 02:02:06,156 INFO L226 Difference]: Without dead ends: 88316 [2022-01-10 02:02:06,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:02:06,253 INFO L933 BasicCegarLoop]: 4559 mSDtfsCounter, 5131 mSDsluCounter, 17056 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5153 SdHoareTripleChecker+Valid, 21615 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:06,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5153 Valid, 21615 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 02:02:06,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88316 states. [2022-01-10 02:02:10,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88316 to 60731. [2022-01-10 02:02:10,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60731 states, 55198 states have (on average 1.5483713178013696) internal successors, (85467), 55456 states have internal predecessors, (85467), 3733 states have call successors, (3733), 1542 states have call predecessors, (3733), 1798 states have return successors, (10550), 3988 states have call predecessors, (10550), 3733 states have call successors, (10550)