/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:30:47,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:30:47,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:30:47,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 19:30:47,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 19:30:47,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 19:30:47,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 19:30:47,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 19:30:47,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 19:30:47,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 19:30:47,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 19:30:47,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 19:30:47,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:30:47,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:30:48,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:30:48,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:30:48,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:30:48,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:30:48,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:30:48,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:30:48,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:30:48,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:30:48,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:30:48,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:30:48,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 19:30:48,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 19:30:48,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 19:30:48,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 19:30:48,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 19:30:48,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 19:30:48,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 19:30:48,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 19:30:48,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 19:30:48,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 19:30:48,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 19:30:48,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 19:30:48,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 19:30:48,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 19:30:48,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:30:48,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:30:48,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:30:48,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:30:48,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:30:48,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:30:48,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:30:48,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:30:48,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:30:48,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:30:48,042 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:30:48,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:30:48,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:30:48,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:30:48,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:30:48,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:30:48,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:30:48,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:30:48,043 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:30:48,043 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:30:48,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:30:48,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:30:48,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:30:48,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:30:48,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:30:48,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:30:48,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:30:48,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:30:48,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:30:48,045 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:30:48,046 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:30:48,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:30:48,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:30:48,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:30:48,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:30:48,236 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:30:48,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c [2022-01-10 19:30:48,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34edf89d6/d90fa8e895d048a1b6844c3870c84066/FLAG98ee0affa [2022-01-10 19:30:48,936 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:30:48,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.08.cil-2.c [2022-01-10 19:30:48,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34edf89d6/d90fa8e895d048a1b6844c3870c84066/FLAG98ee0affa [2022-01-10 19:30:49,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34edf89d6/d90fa8e895d048a1b6844c3870c84066 [2022-01-10 19:30:49,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:30:49,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:30:49,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:30:49,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:30:49,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:30:49,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:30:49" (1/1) ... [2022-01-10 19:30:49,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b064943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:49, skipping insertion in model container [2022-01-10 19:30:49,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:30:49" (1/1) ... [2022-01-10 19:30:49,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:30:49,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:30:50,584 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_label45+token_ring.08.cil-2.c[380323,380336] [2022-01-10 19:30:50,606 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_label45+token_ring.08.cil-2.c[383339,383352] [2022-01-10 19:30:50,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:30:50,817 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:30:51,472 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_label45+token_ring.08.cil-2.c[380323,380336] [2022-01-10 19:30:51,477 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_label45+token_ring.08.cil-2.c[383339,383352] [2022-01-10 19:30:51,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:30:51,529 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:30:51,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51 WrapperNode [2022-01-10 19:30:51,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:30:51,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:30:51,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:30:51,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:30:51,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:51,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:51,947 INFO L137 Inliner]: procedures = 61, calls = 66, calls flagged for inlining = 61, calls inlined = 168, statements flattened = 14705 [2022-01-10 19:30:51,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:30:51,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:30:51,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:30:51,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:30:51,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:51,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:52,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:52,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:52,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:52,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:52,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:52,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:30:52,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:30:52,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:30:52,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:30:52,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (1/1) ... [2022-01-10 19:30:52,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:30:52,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:30:52,434 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 19:30:52,471 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 19:30:52,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:30:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:30:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:30:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:30:52,626 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:30:52,627 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:31:00,105 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:31:00,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:31:00,134 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-01-10 19:31:00,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:00 BoogieIcfgContainer [2022-01-10 19:31:00,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:31:00,140 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:31:00,140 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:31:00,141 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:31:00,143 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:00" (1/1) ... [2022-01-10 19:31:01,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:31:01 BasicIcfg [2022-01-10 19:31:01,539 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:31:01,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:31:01,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:31:01,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:31:01,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:30:49" (1/4) ... [2022-01-10 19:31:01,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2eef36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:31:01, skipping insertion in model container [2022-01-10 19:31:01,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:30:51" (2/4) ... [2022-01-10 19:31:01,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2eef36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:31:01, skipping insertion in model container [2022-01-10 19:31:01,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:31:00" (3/4) ... [2022-01-10 19:31:01,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2eef36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:31:01, skipping insertion in model container [2022-01-10 19:31:01,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:31:01" (4/4) ... [2022-01-10 19:31:01,546 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.08.cil-2.cTransformedIcfg [2022-01-10 19:31:01,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:31:01,551 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 19:31:01,603 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:31:01,609 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 19:31:01,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 19:31:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 3191 states, 3187 states have (on average 1.759962347034829) internal successors, (5609), 3190 states have internal predecessors, (5609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:01,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:01,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:01,676 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:01,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:01,679 INFO L85 PathProgramCache]: Analyzing trace with hash -512828016, now seen corresponding path program 1 times [2022-01-10 19:31:01,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:01,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896305412] [2022-01-10 19:31:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:01,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:01,971 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 19:31:01,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:01,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896305412] [2022-01-10 19:31:01,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896305412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:01,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:01,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:01,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860948656] [2022-01-10 19:31:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:01,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:01,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:02,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:02,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:02,009 INFO L87 Difference]: Start difference. First operand has 3191 states, 3187 states have (on average 1.759962347034829) internal successors, (5609), 3190 states have internal predecessors, (5609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:02,268 INFO L93 Difference]: Finished difference Result 7191 states and 12433 transitions. [2022-01-10 19:31:02,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:02,291 INFO L225 Difference]: With dead ends: 7191 [2022-01-10 19:31:02,291 INFO L226 Difference]: Without dead ends: 3945 [2022-01-10 19:31:02,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:02,302 INFO L933 BasicCegarLoop]: 5514 mSDtfsCounter, 5407 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5407 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:02,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5407 Valid, 6820 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:02,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2022-01-10 19:31:02,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3941. [2022-01-10 19:31:02,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6917216861350939) internal successors, (6662), 3940 states have internal predecessors, (6662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6662 transitions. [2022-01-10 19:31:02,437 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6662 transitions. Word has length 121 [2022-01-10 19:31:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:02,437 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6662 transitions. [2022-01-10 19:31:02,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6662 transitions. [2022-01-10 19:31:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:02,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:02,439 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] [2022-01-10 19:31:02,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:31:02,440 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash -860662096, now seen corresponding path program 1 times [2022-01-10 19:31:02,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:02,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482421142] [2022-01-10 19:31:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:02,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:02,519 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 19:31:02,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:02,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482421142] [2022-01-10 19:31:02,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482421142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:02,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:02,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:02,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060782506] [2022-01-10 19:31:02,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:02,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:02,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:02,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:02,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:02,522 INFO L87 Difference]: Start difference. First operand 3941 states and 6662 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:02,591 INFO L93 Difference]: Finished difference Result 5745 states and 9340 transitions. [2022-01-10 19:31:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:02,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:02,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:02,604 INFO L225 Difference]: With dead ends: 5745 [2022-01-10 19:31:02,605 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:02,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:02,612 INFO L933 BasicCegarLoop]: 5441 mSDtfsCounter, 5430 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5430 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:02,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5430 Valid, 5441 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:02,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:02,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:02,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6896901980700862) internal successors, (6654), 3940 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6654 transitions. [2022-01-10 19:31:02,692 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6654 transitions. Word has length 121 [2022-01-10 19:31:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:02,692 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6654 transitions. [2022-01-10 19:31:02,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:02,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6654 transitions. [2022-01-10 19:31:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:02,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:02,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:02,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:31:02,695 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:02,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1483422096, now seen corresponding path program 1 times [2022-01-10 19:31:02,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:02,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739024806] [2022-01-10 19:31:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:02,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:02,742 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 19:31:02,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:02,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739024806] [2022-01-10 19:31:02,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739024806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:02,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:02,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:02,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116291879] [2022-01-10 19:31:02,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:02,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:02,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:02,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:02,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:02,744 INFO L87 Difference]: Start difference. First operand 3941 states and 6654 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:02,817 INFO L93 Difference]: Finished difference Result 5744 states and 9323 transitions. [2022-01-10 19:31:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:02,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:02,830 INFO L225 Difference]: With dead ends: 5744 [2022-01-10 19:31:02,830 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:02,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:02,834 INFO L933 BasicCegarLoop]: 5436 mSDtfsCounter, 5424 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 5436 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:02,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5424 Valid, 5436 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:02,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:03,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:03,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6876587100050786) internal successors, (6646), 3940 states have internal predecessors, (6646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6646 transitions. [2022-01-10 19:31:03,044 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6646 transitions. Word has length 121 [2022-01-10 19:31:03,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:03,044 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6646 transitions. [2022-01-10 19:31:03,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6646 transitions. [2022-01-10 19:31:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:03,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:03,046 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] [2022-01-10 19:31:03,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:31:03,047 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:03,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:03,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1766098256, now seen corresponding path program 1 times [2022-01-10 19:31:03,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:03,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456272142] [2022-01-10 19:31:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:03,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:03,125 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 19:31:03,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:03,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456272142] [2022-01-10 19:31:03,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456272142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:03,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:03,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:03,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451963978] [2022-01-10 19:31:03,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:03,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:03,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:03,127 INFO L87 Difference]: Start difference. First operand 3941 states and 6646 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:03,200 INFO L93 Difference]: Finished difference Result 5743 states and 9306 transitions. [2022-01-10 19:31:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:03,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:03,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:03,214 INFO L225 Difference]: With dead ends: 5743 [2022-01-10 19:31:03,214 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:03,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:03,220 INFO L933 BasicCegarLoop]: 5431 mSDtfsCounter, 5418 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5418 SdHoareTripleChecker+Valid, 5431 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:03,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5418 Valid, 5431 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:03,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:03,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:03,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6856272219400712) internal successors, (6638), 3940 states have internal predecessors, (6638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6638 transitions. [2022-01-10 19:31:03,329 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6638 transitions. Word has length 121 [2022-01-10 19:31:03,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:03,329 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6638 transitions. [2022-01-10 19:31:03,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6638 transitions. [2022-01-10 19:31:03,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:03,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:03,333 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] [2022-01-10 19:31:03,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:31:03,333 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:03,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:03,334 INFO L85 PathProgramCache]: Analyzing trace with hash -623995504, now seen corresponding path program 1 times [2022-01-10 19:31:03,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:03,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979055903] [2022-01-10 19:31:03,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:03,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:03,388 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 19:31:03,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:03,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979055903] [2022-01-10 19:31:03,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979055903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:03,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:03,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:03,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419203300] [2022-01-10 19:31:03,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:03,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:03,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:03,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:03,392 INFO L87 Difference]: Start difference. First operand 3941 states and 6638 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:03,466 INFO L93 Difference]: Finished difference Result 5742 states and 9289 transitions. [2022-01-10 19:31:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:03,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:03,479 INFO L225 Difference]: With dead ends: 5742 [2022-01-10 19:31:03,479 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:03,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:03,484 INFO L933 BasicCegarLoop]: 5426 mSDtfsCounter, 5412 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5412 SdHoareTripleChecker+Valid, 5426 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:03,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5412 Valid, 5426 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6835957338750636) internal successors, (6630), 3940 states have internal predecessors, (6630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6630 transitions. [2022-01-10 19:31:03,578 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6630 transitions. Word has length 121 [2022-01-10 19:31:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:03,581 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6630 transitions. [2022-01-10 19:31:03,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6630 transitions. [2022-01-10 19:31:03,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:03,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:03,587 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] [2022-01-10 19:31:03,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:31:03,588 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:03,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:03,588 INFO L85 PathProgramCache]: Analyzing trace with hash -864248144, now seen corresponding path program 1 times [2022-01-10 19:31:03,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:03,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222976964] [2022-01-10 19:31:03,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:03,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:03,634 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 19:31:03,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:03,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222976964] [2022-01-10 19:31:03,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222976964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:03,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:03,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:03,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993048237] [2022-01-10 19:31:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:03,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:03,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:03,637 INFO L87 Difference]: Start difference. First operand 3941 states and 6630 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:03,706 INFO L93 Difference]: Finished difference Result 5741 states and 9272 transitions. [2022-01-10 19:31:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:03,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:03,727 INFO L225 Difference]: With dead ends: 5741 [2022-01-10 19:31:03,728 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:03,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:03,735 INFO L933 BasicCegarLoop]: 5421 mSDtfsCounter, 5406 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5406 SdHoareTripleChecker+Valid, 5421 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:03,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5406 Valid, 5421 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:03,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.681564245810056) internal successors, (6622), 3940 states have internal predecessors, (6622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6622 transitions. [2022-01-10 19:31:03,823 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6622 transitions. Word has length 121 [2022-01-10 19:31:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:03,824 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6622 transitions. [2022-01-10 19:31:03,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6622 transitions. [2022-01-10 19:31:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:03,825 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:03,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:03,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:31:03,825 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:03,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 374927760, now seen corresponding path program 1 times [2022-01-10 19:31:03,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:03,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984144153] [2022-01-10 19:31:03,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:03,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:03,881 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 19:31:03,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:03,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984144153] [2022-01-10 19:31:03,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984144153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:03,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:03,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:03,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427384194] [2022-01-10 19:31:03,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:03,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:03,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:03,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:03,882 INFO L87 Difference]: Start difference. First operand 3941 states and 6622 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:04,050 INFO L93 Difference]: Finished difference Result 5740 states and 9255 transitions. [2022-01-10 19:31:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:04,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:04,062 INFO L225 Difference]: With dead ends: 5740 [2022-01-10 19:31:04,062 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:04,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,068 INFO L933 BasicCegarLoop]: 5416 mSDtfsCounter, 5400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5400 SdHoareTripleChecker+Valid, 5416 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:04,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5400 Valid, 5416 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:04,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6795327577450483) internal successors, (6614), 3940 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6614 transitions. [2022-01-10 19:31:04,170 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6614 transitions. Word has length 121 [2022-01-10 19:31:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:04,170 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6614 transitions. [2022-01-10 19:31:04,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6614 transitions. [2022-01-10 19:31:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:04,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:04,174 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] [2022-01-10 19:31:04,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:31:04,174 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:04,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:04,174 INFO L85 PathProgramCache]: Analyzing trace with hash 137806512, now seen corresponding path program 1 times [2022-01-10 19:31:04,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:04,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928447991] [2022-01-10 19:31:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:04,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:04,218 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 19:31:04,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:04,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928447991] [2022-01-10 19:31:04,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928447991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:04,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:04,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:04,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052314090] [2022-01-10 19:31:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:04,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:04,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:04,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,219 INFO L87 Difference]: Start difference. First operand 3941 states and 6614 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:04,304 INFO L93 Difference]: Finished difference Result 5738 states and 9236 transitions. [2022-01-10 19:31:04,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:04,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:04,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:04,311 INFO L225 Difference]: With dead ends: 5738 [2022-01-10 19:31:04,311 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:04,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,315 INFO L933 BasicCegarLoop]: 5411 mSDtfsCounter, 5393 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5393 SdHoareTripleChecker+Valid, 5411 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:04,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5393 Valid, 5411 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:04,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6775012696800407) internal successors, (6606), 3940 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6606 transitions. [2022-01-10 19:31:04,395 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6606 transitions. Word has length 121 [2022-01-10 19:31:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:04,395 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6606 transitions. [2022-01-10 19:31:04,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6606 transitions. [2022-01-10 19:31:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:04,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:04,397 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] [2022-01-10 19:31:04,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:31:04,397 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:04,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:04,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1402362832, now seen corresponding path program 1 times [2022-01-10 19:31:04,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:04,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115754027] [2022-01-10 19:31:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:04,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:04,430 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 19:31:04,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:04,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115754027] [2022-01-10 19:31:04,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115754027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:04,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:04,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:04,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377761341] [2022-01-10 19:31:04,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:04,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:04,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,432 INFO L87 Difference]: Start difference. First operand 3941 states and 6606 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:04,528 INFO L93 Difference]: Finished difference Result 5737 states and 9219 transitions. [2022-01-10 19:31:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:04,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:04,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:04,536 INFO L225 Difference]: With dead ends: 5737 [2022-01-10 19:31:04,537 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:04,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,542 INFO L933 BasicCegarLoop]: 5384 mSDtfsCounter, 5284 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5284 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:04,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5284 Valid, 5472 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:04,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:04,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:04,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.670391061452514) internal successors, (6578), 3940 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6578 transitions. [2022-01-10 19:31:04,629 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6578 transitions. Word has length 121 [2022-01-10 19:31:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:04,629 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6578 transitions. [2022-01-10 19:31:04,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6578 transitions. [2022-01-10 19:31:04,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:04,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:04,633 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] [2022-01-10 19:31:04,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 19:31:04,633 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:04,633 INFO L85 PathProgramCache]: Analyzing trace with hash 2031662383, now seen corresponding path program 1 times [2022-01-10 19:31:04,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:04,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580778528] [2022-01-10 19:31:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:04,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:04,666 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 19:31:04,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:04,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580778528] [2022-01-10 19:31:04,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580778528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:04,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:04,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:04,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551932400] [2022-01-10 19:31:04,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:04,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:04,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:04,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,668 INFO L87 Difference]: Start difference. First operand 3941 states and 6578 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:04,754 INFO L93 Difference]: Finished difference Result 5736 states and 9162 transitions. [2022-01-10 19:31:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:04,761 INFO L225 Difference]: With dead ends: 5736 [2022-01-10 19:31:04,761 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:04,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,765 INFO L933 BasicCegarLoop]: 5368 mSDtfsCounter, 5268 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5268 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:04,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5268 Valid, 5455 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:04,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6632808532249872) internal successors, (6550), 3940 states have internal predecessors, (6550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6550 transitions. [2022-01-10 19:31:04,850 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6550 transitions. Word has length 121 [2022-01-10 19:31:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:04,850 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6550 transitions. [2022-01-10 19:31:04,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:04,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6550 transitions. [2022-01-10 19:31:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:04,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:04,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:04,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 19:31:04,852 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:04,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:04,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1076639758, now seen corresponding path program 1 times [2022-01-10 19:31:04,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:04,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412859089] [2022-01-10 19:31:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:04,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:04,886 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 19:31:04,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412859089] [2022-01-10 19:31:04,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412859089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:04,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:04,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:04,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305595591] [2022-01-10 19:31:04,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:04,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:04,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:04,888 INFO L87 Difference]: Start difference. First operand 3941 states and 6550 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:05,013 INFO L93 Difference]: Finished difference Result 5735 states and 9105 transitions. [2022-01-10 19:31:05,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:05,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:05,021 INFO L225 Difference]: With dead ends: 5735 [2022-01-10 19:31:05,021 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:05,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:05,025 INFO L933 BasicCegarLoop]: 5352 mSDtfsCounter, 5252 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5252 SdHoareTripleChecker+Valid, 5438 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:05,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5252 Valid, 5438 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:05,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:05,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:05,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6561706449974607) internal successors, (6522), 3940 states have internal predecessors, (6522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6522 transitions. [2022-01-10 19:31:05,121 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6522 transitions. Word has length 121 [2022-01-10 19:31:05,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:05,121 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6522 transitions. [2022-01-10 19:31:05,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6522 transitions. [2022-01-10 19:31:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:05,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:05,122 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] [2022-01-10 19:31:05,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 19:31:05,123 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:05,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1468551149, now seen corresponding path program 1 times [2022-01-10 19:31:05,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:05,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030104310] [2022-01-10 19:31:05,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:05,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:05,164 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 19:31:05,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:05,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030104310] [2022-01-10 19:31:05,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030104310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:05,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:05,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:05,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754221248] [2022-01-10 19:31:05,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:05,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:05,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:05,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:05,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:05,166 INFO L87 Difference]: Start difference. First operand 3941 states and 6522 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:05,299 INFO L93 Difference]: Finished difference Result 5734 states and 9048 transitions. [2022-01-10 19:31:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:05,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:05,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:05,307 INFO L225 Difference]: With dead ends: 5734 [2022-01-10 19:31:05,307 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:05,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:05,310 INFO L933 BasicCegarLoop]: 5336 mSDtfsCounter, 5236 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 5421 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:05,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5236 Valid, 5421 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:05,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:05,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.649060436769934) internal successors, (6494), 3940 states have internal predecessors, (6494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6494 transitions. [2022-01-10 19:31:05,416 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6494 transitions. Word has length 121 [2022-01-10 19:31:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:05,417 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6494 transitions. [2022-01-10 19:31:05,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6494 transitions. [2022-01-10 19:31:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:05,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:05,419 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] [2022-01-10 19:31:05,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 19:31:05,419 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:05,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:05,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1578041676, now seen corresponding path program 1 times [2022-01-10 19:31:05,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:05,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280464755] [2022-01-10 19:31:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:05,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:05,451 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 19:31:05,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:05,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280464755] [2022-01-10 19:31:05,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280464755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:05,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:05,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:05,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324243149] [2022-01-10 19:31:05,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:05,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:05,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:05,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:05,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:05,452 INFO L87 Difference]: Start difference. First operand 3941 states and 6494 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:05,564 INFO L93 Difference]: Finished difference Result 5733 states and 8991 transitions. [2022-01-10 19:31:05,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:05,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:05,571 INFO L225 Difference]: With dead ends: 5733 [2022-01-10 19:31:05,571 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:05,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:05,578 INFO L933 BasicCegarLoop]: 5320 mSDtfsCounter, 5220 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5220 SdHoareTripleChecker+Valid, 5404 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:05,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5220 Valid, 5404 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:05,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:05,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6419502285424072) internal successors, (6466), 3940 states have internal predecessors, (6466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6466 transitions. [2022-01-10 19:31:05,687 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6466 transitions. Word has length 121 [2022-01-10 19:31:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:05,687 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6466 transitions. [2022-01-10 19:31:05,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6466 transitions. [2022-01-10 19:31:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:05,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:05,689 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] [2022-01-10 19:31:05,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 19:31:05,689 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:05,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:05,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1198036907, now seen corresponding path program 1 times [2022-01-10 19:31:05,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:05,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814481562] [2022-01-10 19:31:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:05,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:05,721 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 19:31:05,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:05,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814481562] [2022-01-10 19:31:05,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814481562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:05,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:05,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:05,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021463305] [2022-01-10 19:31:05,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:05,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:05,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:05,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:05,723 INFO L87 Difference]: Start difference. First operand 3941 states and 6466 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:05,855 INFO L93 Difference]: Finished difference Result 5731 states and 8932 transitions. [2022-01-10 19:31:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:05,864 INFO L225 Difference]: With dead ends: 5731 [2022-01-10 19:31:05,864 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:05,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:05,869 INFO L933 BasicCegarLoop]: 5304 mSDtfsCounter, 5203 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 5387 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:05,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5203 Valid, 5387 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:05,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:05,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6348400203148807) internal successors, (6438), 3940 states have internal predecessors, (6438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6438 transitions. [2022-01-10 19:31:05,999 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6438 transitions. Word has length 121 [2022-01-10 19:31:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:05,999 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6438 transitions. [2022-01-10 19:31:05,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6438 transitions. [2022-01-10 19:31:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:06,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:06,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:06,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 19:31:06,001 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:06,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:06,002 INFO L85 PathProgramCache]: Analyzing trace with hash -117216118, now seen corresponding path program 1 times [2022-01-10 19:31:06,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:06,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962777611] [2022-01-10 19:31:06,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:06,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:06,036 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 19:31:06,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:06,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962777611] [2022-01-10 19:31:06,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962777611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:06,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:06,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:06,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122715435] [2022-01-10 19:31:06,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:06,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:06,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:06,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:06,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:06,038 INFO L87 Difference]: Start difference. First operand 3941 states and 6438 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:06,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:06,164 INFO L93 Difference]: Finished difference Result 5730 states and 8875 transitions. [2022-01-10 19:31:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:06,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:06,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:06,171 INFO L225 Difference]: With dead ends: 5730 [2022-01-10 19:31:06,171 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:06,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:06,180 INFO L933 BasicCegarLoop]: 5288 mSDtfsCounter, 5187 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5187 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:06,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5187 Valid, 5370 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:06,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:06,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.627729812087354) internal successors, (6410), 3940 states have internal predecessors, (6410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6410 transitions. [2022-01-10 19:31:06,303 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6410 transitions. Word has length 121 [2022-01-10 19:31:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:06,304 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6410 transitions. [2022-01-10 19:31:06,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6410 transitions. [2022-01-10 19:31:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:06,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:06,305 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] [2022-01-10 19:31:06,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 19:31:06,305 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1575503127, now seen corresponding path program 1 times [2022-01-10 19:31:06,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:06,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417557637] [2022-01-10 19:31:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:06,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:06,340 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 19:31:06,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:06,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417557637] [2022-01-10 19:31:06,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417557637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:06,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:06,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:06,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797641749] [2022-01-10 19:31:06,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:06,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:06,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:06,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:06,342 INFO L87 Difference]: Start difference. First operand 3941 states and 6410 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:06,469 INFO L93 Difference]: Finished difference Result 5729 states and 8818 transitions. [2022-01-10 19:31:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:06,476 INFO L225 Difference]: With dead ends: 5729 [2022-01-10 19:31:06,476 INFO L226 Difference]: Without dead ends: 3941 [2022-01-10 19:31:06,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:06,480 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 5171 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5171 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:06,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5171 Valid, 5353 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-01-10 19:31:06,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2022-01-10 19:31:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3938 states have (on average 1.6206196038598273) internal successors, (6382), 3940 states have internal predecessors, (6382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6382 transitions. [2022-01-10 19:31:06,618 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6382 transitions. Word has length 121 [2022-01-10 19:31:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:06,619 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 6382 transitions. [2022-01-10 19:31:06,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6382 transitions. [2022-01-10 19:31:06,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:06,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:06,620 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] [2022-01-10 19:31:06,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 19:31:06,620 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash -128479672, now seen corresponding path program 1 times [2022-01-10 19:31:06,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:06,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335127580] [2022-01-10 19:31:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:06,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:06,666 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 19:31:06,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:06,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335127580] [2022-01-10 19:31:06,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335127580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:06,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:06,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:31:06,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893151323] [2022-01-10 19:31:06,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:06,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:31:06,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:06,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:31:06,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:31:06,668 INFO L87 Difference]: Start difference. First operand 3941 states and 6382 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:06,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:06,921 INFO L93 Difference]: Finished difference Result 6521 states and 9869 transitions. [2022-01-10 19:31:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:31:06,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:06,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:06,929 INFO L225 Difference]: With dead ends: 6521 [2022-01-10 19:31:06,929 INFO L226 Difference]: Without dead ends: 4747 [2022-01-10 19:31:06,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 19:31:06,932 INFO L933 BasicCegarLoop]: 5378 mSDtfsCounter, 3636 mSDsluCounter, 13597 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3636 SdHoareTripleChecker+Valid, 18975 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:06,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3636 Valid, 18975 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:06,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4747 states. [2022-01-10 19:31:07,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4747 to 3947. [2022-01-10 19:31:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3944 states have (on average 1.614604462474645) internal successors, (6368), 3946 states have internal predecessors, (6368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6368 transitions. [2022-01-10 19:31:07,035 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6368 transitions. Word has length 121 [2022-01-10 19:31:07,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:07,036 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6368 transitions. [2022-01-10 19:31:07,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:07,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6368 transitions. [2022-01-10 19:31:07,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:07,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:07,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:07,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 19:31:07,037 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:07,037 INFO L85 PathProgramCache]: Analyzing trace with hash -114946871, now seen corresponding path program 1 times [2022-01-10 19:31:07,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:07,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648735536] [2022-01-10 19:31:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:07,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:07,071 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 19:31:07,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:07,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648735536] [2022-01-10 19:31:07,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648735536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:07,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:07,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:07,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469774319] [2022-01-10 19:31:07,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:07,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:07,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:07,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:07,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:07,073 INFO L87 Difference]: Start difference. First operand 3947 states and 6368 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:07,313 INFO L93 Difference]: Finished difference Result 7261 states and 10738 transitions. [2022-01-10 19:31:07,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:07,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:07,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:07,323 INFO L225 Difference]: With dead ends: 7261 [2022-01-10 19:31:07,323 INFO L226 Difference]: Without dead ends: 5504 [2022-01-10 19:31:07,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:07,327 INFO L933 BasicCegarLoop]: 5262 mSDtfsCounter, 5091 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5091 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:07,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5091 Valid, 6408 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:07,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5504 states. [2022-01-10 19:31:07,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5504 to 5496. [2022-01-10 19:31:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5493 states have (on average 1.5273985071909704) internal successors, (8390), 5495 states have internal predecessors, (8390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 8390 transitions. [2022-01-10 19:31:07,484 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 8390 transitions. Word has length 121 [2022-01-10 19:31:07,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:07,484 INFO L470 AbstractCegarLoop]: Abstraction has 5496 states and 8390 transitions. [2022-01-10 19:31:07,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 8390 transitions. [2022-01-10 19:31:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:07,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:07,485 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] [2022-01-10 19:31:07,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 19:31:07,486 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:07,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:07,486 INFO L85 PathProgramCache]: Analyzing trace with hash 556186504, now seen corresponding path program 1 times [2022-01-10 19:31:07,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:07,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406549944] [2022-01-10 19:31:07,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:07,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:07,524 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 19:31:07,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:07,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406549944] [2022-01-10 19:31:07,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406549944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:07,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:07,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:31:07,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670975337] [2022-01-10 19:31:07,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:07,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:31:07,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:07,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:31:07,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:31:07,526 INFO L87 Difference]: Start difference. First operand 5496 states and 8390 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:07,805 INFO L93 Difference]: Finished difference Result 10159 states and 14571 transitions. [2022-01-10 19:31:07,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:31:07,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:07,817 INFO L225 Difference]: With dead ends: 10159 [2022-01-10 19:31:07,817 INFO L226 Difference]: Without dead ends: 6864 [2022-01-10 19:31:07,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 19:31:07,822 INFO L933 BasicCegarLoop]: 5227 mSDtfsCounter, 2989 mSDsluCounter, 14897 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 20124 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:07,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2989 Valid, 20124 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:07,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6864 states. [2022-01-10 19:31:08,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6864 to 5502. [2022-01-10 19:31:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5499 states have (on average 1.5197308601563921) internal successors, (8357), 5501 states have internal predecessors, (8357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:08,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 8357 transitions. [2022-01-10 19:31:08,051 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 8357 transitions. Word has length 121 [2022-01-10 19:31:08,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:08,052 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 8357 transitions. [2022-01-10 19:31:08,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 8357 transitions. [2022-01-10 19:31:08,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:08,053 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:08,053 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] [2022-01-10 19:31:08,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 19:31:08,054 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:08,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:08,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1767841335, now seen corresponding path program 1 times [2022-01-10 19:31:08,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:08,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154332194] [2022-01-10 19:31:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:08,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:08,101 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 19:31:08,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:08,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154332194] [2022-01-10 19:31:08,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154332194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:08,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:08,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:31:08,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898093687] [2022-01-10 19:31:08,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:08,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:31:08,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:08,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:31:08,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:31:08,102 INFO L87 Difference]: Start difference. First operand 5502 states and 8357 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:08,507 INFO L93 Difference]: Finished difference Result 11618 states and 16397 transitions. [2022-01-10 19:31:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:31:08,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:08,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:08,543 INFO L225 Difference]: With dead ends: 11618 [2022-01-10 19:31:08,543 INFO L226 Difference]: Without dead ends: 8324 [2022-01-10 19:31:08,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 19:31:08,555 INFO L933 BasicCegarLoop]: 5241 mSDtfsCounter, 2821 mSDsluCounter, 15131 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 20372 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:08,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2821 Valid, 20372 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:08,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8324 states. [2022-01-10 19:31:08,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8324 to 5514. [2022-01-10 19:31:08,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5511 states have (on average 1.5118853202685538) internal successors, (8332), 5513 states have internal predecessors, (8332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8332 transitions. [2022-01-10 19:31:08,806 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8332 transitions. Word has length 121 [2022-01-10 19:31:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:08,806 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 8332 transitions. [2022-01-10 19:31:08,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8332 transitions. [2022-01-10 19:31:08,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:08,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:08,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:08,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 19:31:08,807 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:08,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:08,808 INFO L85 PathProgramCache]: Analyzing trace with hash 591465674, now seen corresponding path program 1 times [2022-01-10 19:31:08,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:08,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683331358] [2022-01-10 19:31:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:08,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:08,880 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 19:31:08,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:08,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683331358] [2022-01-10 19:31:08,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683331358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:08,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:08,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:08,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929872497] [2022-01-10 19:31:08,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:08,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:08,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:08,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:08,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:08,882 INFO L87 Difference]: Start difference. First operand 5514 states and 8332 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:09,060 INFO L93 Difference]: Finished difference Result 8885 states and 12674 transitions. [2022-01-10 19:31:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:09,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:09,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:09,068 INFO L225 Difference]: With dead ends: 8885 [2022-01-10 19:31:09,068 INFO L226 Difference]: Without dead ends: 5514 [2022-01-10 19:31:09,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:09,073 INFO L933 BasicCegarLoop]: 5242 mSDtfsCounter, 5152 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5152 SdHoareTripleChecker+Valid, 5242 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:09,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5152 Valid, 5242 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:09,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2022-01-10 19:31:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5514. [2022-01-10 19:31:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5511 states have (on average 1.509344946470695) internal successors, (8318), 5513 states have internal predecessors, (8318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:09,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8318 transitions. [2022-01-10 19:31:09,267 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8318 transitions. Word has length 121 [2022-01-10 19:31:09,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:09,267 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 8318 transitions. [2022-01-10 19:31:09,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:09,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8318 transitions. [2022-01-10 19:31:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:09,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:09,268 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] [2022-01-10 19:31:09,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 19:31:09,269 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:09,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:09,269 INFO L85 PathProgramCache]: Analyzing trace with hash 622485481, now seen corresponding path program 1 times [2022-01-10 19:31:09,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:09,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034202717] [2022-01-10 19:31:09,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:09,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:09,306 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 19:31:09,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:09,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034202717] [2022-01-10 19:31:09,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034202717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:09,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:09,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:09,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089294178] [2022-01-10 19:31:09,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:09,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:09,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:09,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:09,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:09,308 INFO L87 Difference]: Start difference. First operand 5514 states and 8318 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:09,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:09,582 INFO L93 Difference]: Finished difference Result 8878 states and 12639 transitions. [2022-01-10 19:31:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:09,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:09,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:09,589 INFO L225 Difference]: With dead ends: 8878 [2022-01-10 19:31:09,589 INFO L226 Difference]: Without dead ends: 5514 [2022-01-10 19:31:09,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:09,595 INFO L933 BasicCegarLoop]: 5217 mSDtfsCounter, 5049 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5049 SdHoareTripleChecker+Valid, 5294 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:09,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5049 Valid, 5294 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:31:09,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2022-01-10 19:31:09,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5514. [2022-01-10 19:31:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5511 states have (on average 1.5033569225185992) internal successors, (8285), 5513 states have internal predecessors, (8285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 8285 transitions. [2022-01-10 19:31:09,783 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 8285 transitions. Word has length 121 [2022-01-10 19:31:09,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:09,784 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 8285 transitions. [2022-01-10 19:31:09,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 8285 transitions. [2022-01-10 19:31:09,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 19:31:09,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:09,785 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] [2022-01-10 19:31:09,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 19:31:09,785 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:09,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:09,785 INFO L85 PathProgramCache]: Analyzing trace with hash -221986390, now seen corresponding path program 1 times [2022-01-10 19:31:09,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:09,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209714511] [2022-01-10 19:31:09,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:09,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:09,822 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 19:31:09,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:09,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209714511] [2022-01-10 19:31:09,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209714511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:09,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:09,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:31:09,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412185951] [2022-01-10 19:31:09,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:09,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:09,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:09,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:09,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:09,824 INFO L87 Difference]: Start difference. First operand 5514 states and 8285 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:10,227 INFO L93 Difference]: Finished difference Result 12075 states and 16651 transitions. [2022-01-10 19:31:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:10,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 19:31:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:10,238 INFO L225 Difference]: With dead ends: 12075 [2022-01-10 19:31:10,238 INFO L226 Difference]: Without dead ends: 8716 [2022-01-10 19:31:10,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:10,242 INFO L933 BasicCegarLoop]: 5217 mSDtfsCounter, 5071 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5071 SdHoareTripleChecker+Valid, 6327 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:10,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5071 Valid, 6327 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:10,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8716 states. [2022-01-10 19:31:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8716 to 8458. [2022-01-10 19:31:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8458 states, 8455 states have (on average 1.4196333530455352) internal successors, (12003), 8457 states have internal predecessors, (12003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8458 states to 8458 states and 12003 transitions. [2022-01-10 19:31:10,590 INFO L78 Accepts]: Start accepts. Automaton has 8458 states and 12003 transitions. Word has length 121 [2022-01-10 19:31:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:10,590 INFO L470 AbstractCegarLoop]: Abstraction has 8458 states and 12003 transitions. [2022-01-10 19:31:10,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8458 states and 12003 transitions. [2022-01-10 19:31:10,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-10 19:31:10,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:10,594 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:10,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 19:31:10,595 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:10,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:10,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1368128650, now seen corresponding path program 1 times [2022-01-10 19:31:10,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:10,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793536528] [2022-01-10 19:31:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:10,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:31:10,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:10,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793536528] [2022-01-10 19:31:10,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793536528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:10,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:10,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:10,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383528035] [2022-01-10 19:31:10,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:10,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:10,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:10,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:10,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:10,640 INFO L87 Difference]: Start difference. First operand 8458 states and 12003 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:11,291 INFO L93 Difference]: Finished difference Result 20814 states and 27714 transitions. [2022-01-10 19:31:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:11,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-10 19:31:11,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:11,308 INFO L225 Difference]: With dead ends: 20814 [2022-01-10 19:31:11,308 INFO L226 Difference]: Without dead ends: 14517 [2022-01-10 19:31:11,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:11,318 INFO L933 BasicCegarLoop]: 5214 mSDtfsCounter, 5103 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5103 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:11,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5103 Valid, 6324 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14517 states. [2022-01-10 19:31:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14517 to 14061. [2022-01-10 19:31:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14061 states, 14058 states have (on average 1.3578745198463509) internal successors, (19089), 14060 states have internal predecessors, (19089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:11,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14061 states to 14061 states and 19089 transitions. [2022-01-10 19:31:11,996 INFO L78 Accepts]: Start accepts. Automaton has 14061 states and 19089 transitions. Word has length 196 [2022-01-10 19:31:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:11,996 INFO L470 AbstractCegarLoop]: Abstraction has 14061 states and 19089 transitions. [2022-01-10 19:31:11,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 14061 states and 19089 transitions. [2022-01-10 19:31:12,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-10 19:31:12,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:12,002 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:12,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 19:31:12,002 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:12,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:12,003 INFO L85 PathProgramCache]: Analyzing trace with hash -683735990, now seen corresponding path program 1 times [2022-01-10 19:31:12,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:12,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492830393] [2022-01-10 19:31:12,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:12,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:31:12,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:12,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492830393] [2022-01-10 19:31:12,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492830393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:12,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:12,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:12,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143759771] [2022-01-10 19:31:12,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:12,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:12,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:12,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:12,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:12,054 INFO L87 Difference]: Start difference. First operand 14061 states and 19089 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:13,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:13,211 INFO L93 Difference]: Finished difference Result 36903 states and 47794 transitions. [2022-01-10 19:31:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:13,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-10 19:31:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:13,248 INFO L225 Difference]: With dead ends: 36903 [2022-01-10 19:31:13,248 INFO L226 Difference]: Without dead ends: 25075 [2022-01-10 19:31:13,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:13,265 INFO L933 BasicCegarLoop]: 5907 mSDtfsCounter, 4920 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4920 SdHoareTripleChecker+Valid, 7157 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:13,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4920 Valid, 7157 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:13,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25075 states. [2022-01-10 19:31:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25075 to 25071. [2022-01-10 19:31:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25071 states, 25068 states have (on average 1.3056486357108665) internal successors, (32730), 25070 states have internal predecessors, (32730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:14,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25071 states to 25071 states and 32730 transitions. [2022-01-10 19:31:14,575 INFO L78 Accepts]: Start accepts. Automaton has 25071 states and 32730 transitions. Word has length 196 [2022-01-10 19:31:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:14,576 INFO L470 AbstractCegarLoop]: Abstraction has 25071 states and 32730 transitions. [2022-01-10 19:31:14,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:14,576 INFO L276 IsEmpty]: Start isEmpty. Operand 25071 states and 32730 transitions. [2022-01-10 19:31:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-10 19:31:14,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:14,586 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:14,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 19:31:14,586 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:14,587 INFO L85 PathProgramCache]: Analyzing trace with hash -920353815, now seen corresponding path program 1 times [2022-01-10 19:31:14,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:14,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004953223] [2022-01-10 19:31:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:14,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 19:31:14,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:14,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004953223] [2022-01-10 19:31:14,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004953223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:14,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:14,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:14,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269764561] [2022-01-10 19:31:14,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:14,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:14,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:14,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:14,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:14,618 INFO L87 Difference]: Start difference. First operand 25071 states and 32730 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:15,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:15,838 INFO L93 Difference]: Finished difference Result 47803 states and 61244 transitions. [2022-01-10 19:31:15,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:15,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-10 19:31:15,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:15,872 INFO L225 Difference]: With dead ends: 47803 [2022-01-10 19:31:15,872 INFO L226 Difference]: Without dead ends: 24965 [2022-01-10 19:31:15,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:15,896 INFO L933 BasicCegarLoop]: 5226 mSDtfsCounter, 1264 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 9184 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:15,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 9184 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:15,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24965 states. [2022-01-10 19:31:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24965 to 24965. [2022-01-10 19:31:17,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24965 states, 24962 states have (on average 1.3061453409181956) internal successors, (32604), 24964 states have internal predecessors, (32604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:17,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24965 states to 24965 states and 32604 transitions. [2022-01-10 19:31:17,270 INFO L78 Accepts]: Start accepts. Automaton has 24965 states and 32604 transitions. Word has length 196 [2022-01-10 19:31:17,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:17,270 INFO L470 AbstractCegarLoop]: Abstraction has 24965 states and 32604 transitions. [2022-01-10 19:31:17,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:17,270 INFO L276 IsEmpty]: Start isEmpty. Operand 24965 states and 32604 transitions. [2022-01-10 19:31:17,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 19:31:17,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:17,279 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:17,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 19:31:17,279 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:17,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:17,280 INFO L85 PathProgramCache]: Analyzing trace with hash -4500794, now seen corresponding path program 1 times [2022-01-10 19:31:17,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:17,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570466292] [2022-01-10 19:31:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:17,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:17,328 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:31:17,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:17,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570466292] [2022-01-10 19:31:17,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570466292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:17,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:17,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:17,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427219570] [2022-01-10 19:31:17,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:17,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:17,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:17,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:17,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:17,329 INFO L87 Difference]: Start difference. First operand 24965 states and 32604 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:19,601 INFO L93 Difference]: Finished difference Result 69478 states and 88187 transitions. [2022-01-10 19:31:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:19,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-10 19:31:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:19,663 INFO L225 Difference]: With dead ends: 69478 [2022-01-10 19:31:19,664 INFO L226 Difference]: Without dead ends: 46746 [2022-01-10 19:31:19,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:19,690 INFO L933 BasicCegarLoop]: 5563 mSDtfsCounter, 5012 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5012 SdHoareTripleChecker+Valid, 6800 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:19,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5012 Valid, 6800 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46746 states. [2022-01-10 19:31:22,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46746 to 45286. [2022-01-10 19:31:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45286 states, 45283 states have (on average 1.2763951151646313) internal successors, (57799), 45285 states have internal predecessors, (57799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45286 states to 45286 states and 57799 transitions. [2022-01-10 19:31:22,402 INFO L78 Accepts]: Start accepts. Automaton has 45286 states and 57799 transitions. Word has length 197 [2022-01-10 19:31:22,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:22,402 INFO L470 AbstractCegarLoop]: Abstraction has 45286 states and 57799 transitions. [2022-01-10 19:31:22,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 45286 states and 57799 transitions. [2022-01-10 19:31:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 19:31:22,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:22,418 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:22,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 19:31:22,418 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:22,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash 724444198, now seen corresponding path program 1 times [2022-01-10 19:31:22,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:22,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706966574] [2022-01-10 19:31:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:22,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:22,449 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 19:31:22,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:22,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706966574] [2022-01-10 19:31:22,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706966574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:22,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:22,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:22,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018181423] [2022-01-10 19:31:22,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:22,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:22,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:22,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:22,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:22,452 INFO L87 Difference]: Start difference. First operand 45286 states and 57799 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:25,192 INFO L93 Difference]: Finished difference Result 88295 states and 111455 transitions. [2022-01-10 19:31:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:25,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-10 19:31:25,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:25,255 INFO L225 Difference]: With dead ends: 88295 [2022-01-10 19:31:25,256 INFO L226 Difference]: Without dead ends: 45181 [2022-01-10 19:31:25,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:25,306 INFO L933 BasicCegarLoop]: 5225 mSDtfsCounter, 1262 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 9183 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:25,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 9183 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45181 states. [2022-01-10 19:31:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45181 to 45181. [2022-01-10 19:31:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45181 states, 45178 states have (on average 1.27661693744743) internal successors, (57675), 45180 states have internal predecessors, (57675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45181 states to 45181 states and 57675 transitions. [2022-01-10 19:31:27,978 INFO L78 Accepts]: Start accepts. Automaton has 45181 states and 57675 transitions. Word has length 197 [2022-01-10 19:31:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:27,978 INFO L470 AbstractCegarLoop]: Abstraction has 45181 states and 57675 transitions. [2022-01-10 19:31:27,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 45181 states and 57675 transitions. [2022-01-10 19:31:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-10 19:31:27,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:27,994 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:27,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 19:31:27,995 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:27,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:27,995 INFO L85 PathProgramCache]: Analyzing trace with hash -402695687, now seen corresponding path program 1 times [2022-01-10 19:31:27,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:27,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121116701] [2022-01-10 19:31:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:27,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:31:28,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:28,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121116701] [2022-01-10 19:31:28,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121116701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:28,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:28,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:28,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790240215] [2022-01-10 19:31:28,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:28,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:28,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:28,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:28,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:28,052 INFO L87 Difference]: Start difference. First operand 45181 states and 57675 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:32,807 INFO L93 Difference]: Finished difference Result 128957 states and 161928 transitions. [2022-01-10 19:31:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:32,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2022-01-10 19:31:32,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:32,930 INFO L225 Difference]: With dead ends: 128957 [2022-01-10 19:31:32,931 INFO L226 Difference]: Without dead ends: 86009 [2022-01-10 19:31:32,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:32,969 INFO L933 BasicCegarLoop]: 5618 mSDtfsCounter, 5098 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5098 SdHoareTripleChecker+Valid, 6853 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:32,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5098 Valid, 6853 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:33,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86009 states. [2022-01-10 19:31:37,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86009 to 83541. [2022-01-10 19:31:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83541 states, 83538 states have (on average 1.2595465536642008) internal successors, (105220), 83540 states have internal predecessors, (105220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83541 states to 83541 states and 105220 transitions. [2022-01-10 19:31:38,176 INFO L78 Accepts]: Start accepts. Automaton has 83541 states and 105220 transitions. Word has length 198 [2022-01-10 19:31:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:31:38,177 INFO L470 AbstractCegarLoop]: Abstraction has 83541 states and 105220 transitions. [2022-01-10 19:31:38,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 83541 states and 105220 transitions. [2022-01-10 19:31:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-10 19:31:38,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:31:38,199 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:31:38,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 19:31:38,199 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:31:38,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:31:38,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1258292758, now seen corresponding path program 1 times [2022-01-10 19:31:38,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:31:38,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910422359] [2022-01-10 19:31:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:31:38,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:31:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:31:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 19:31:38,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:31:38,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910422359] [2022-01-10 19:31:38,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910422359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:31:38,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:31:38,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:31:38,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354980798] [2022-01-10 19:31:38,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:31:38,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:31:38,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:31:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:31:38,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:38,245 INFO L87 Difference]: Start difference. First operand 83541 states and 105220 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:31:43,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:31:43,355 INFO L93 Difference]: Finished difference Result 164799 states and 206291 transitions. [2022-01-10 19:31:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:31:43,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2022-01-10 19:31:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:31:43,490 INFO L225 Difference]: With dead ends: 164799 [2022-01-10 19:31:43,491 INFO L226 Difference]: Without dead ends: 83437 [2022-01-10 19:31:43,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:31:43,566 INFO L933 BasicCegarLoop]: 5224 mSDtfsCounter, 1260 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:31:43,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 9182 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:31:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83437 states.