/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:38:18,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:38:18,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:38:18,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:38:18,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:38:18,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:38:18,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:38:18,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:38:18,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:38:18,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:38:18,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:38:18,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-01-10 01:38:18,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:38:18,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:38:18,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:38:18,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:38:18,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:38:18,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:38:18,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:38:18,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:38:18,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:38:18,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:38:18,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:38:18,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:38:18,625 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:38:18,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:38:18,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:38:18,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:38:18,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:38:18,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:38:18,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:38:18,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:38:18,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:38:18,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:38:18,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:38:18,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:38:18,848 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:38:18,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 01:38:18,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fee02cf/baff3359c0174c108fb643eb7896378d/FLAGd0fb4c151 [2022-01-10 01:38:19,319 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:38:19,319 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 01:38:19,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fee02cf/baff3359c0174c108fb643eb7896378d/FLAGd0fb4c151 [2022-01-10 01:38:19,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fee02cf/baff3359c0174c108fb643eb7896378d [2022-01-10 01:38:19,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:38:19,641 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:38:19,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:38:19,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:38:19,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:38:19,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:38:19" (1/1) ... [2022-01-10 01:38:19,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f332149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:19, skipping insertion in model container [2022-01-10 01:38:19,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:38:19" (1/1) ... [2022-01-10 01:38:19,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:38:19,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:38:19,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2022-01-10 01:38:19,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2022-01-10 01:38:20,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2022-01-10 01:38:20,013 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2022-01-10 01:38:20,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2022-01-10 01:38:20,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2022-01-10 01:38:20,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2022-01-10 01:38:20,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2022-01-10 01:38:20,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2022-01-10 01:38:20,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2022-01-10 01:38:20,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2022-01-10 01:38:20,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:38:20,129 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:38:20,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2022-01-10 01:38:20,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2022-01-10 01:38:20,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2022-01-10 01:38:20,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2022-01-10 01:38:20,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2022-01-10 01:38:20,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2022-01-10 01:38:20,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2022-01-10 01:38:20,178 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2022-01-10 01:38:20,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2022-01-10 01:38:20,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2022-01-10 01:38:20,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2022-01-10 01:38:20,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:38:20,222 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:38:20,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20 WrapperNode [2022-01-10 01:38:20,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:38:20,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:38:20,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:38:20,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:38:20,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,308 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1788 [2022-01-10 01:38:20,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:38:20,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:38:20,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:38:20,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:38:20,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:38:20,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:38:20,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:38:20,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:38:20,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 01:38:20,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:38:20,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:38:20,399 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 01:38:20,441 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 01:38:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:38:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:38:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:38:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:38:20,619 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:38:20,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:38:21,391 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:38:21,397 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:38:21,397 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:38:21,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:38:21 BoogieIcfgContainer [2022-01-10 01:38:21,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:38:21,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:38:21,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:38:21,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:38:21,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:38:19" (1/3) ... [2022-01-10 01:38:21,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da722f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:38:21, skipping insertion in model container [2022-01-10 01:38:21,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (2/3) ... [2022-01-10 01:38:21,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da722f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:38:21, skipping insertion in model container [2022-01-10 01:38:21,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:38:21" (3/3) ... [2022-01-10 01:38:21,404 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 01:38:21,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:38:21,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-01-10 01:38:21,446 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:38:21,450 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 01:38:21,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-01-10 01:38:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 01:38:21,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 01:38:21,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:21,471 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] [2022-01-10 01:38:21,472 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:21,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:21,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1863160701, now seen corresponding path program 1 times [2022-01-10 01:38:21,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:21,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708393565] [2022-01-10 01:38:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:21,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:21,815 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 01:38:21,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:21,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708393565] [2022-01-10 01:38:21,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708393565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:21,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:21,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:21,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155515848] [2022-01-10 01:38:21,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:21,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:21,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:21,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:21,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:21,846 INFO L87 Difference]: Start difference. First operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 0 states have call successors, (0), 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 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 01:38:22,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:22,141 INFO L93 Difference]: Finished difference Result 569 states and 972 transitions. [2022-01-10 01:38:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:22,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-10 01:38:22,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:22,158 INFO L225 Difference]: With dead ends: 569 [2022-01-10 01:38:22,158 INFO L226 Difference]: Without dead ends: 293 [2022-01-10 01:38:22,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:22,169 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1450 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:22,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 362 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:38:22,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-01-10 01:38:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2022-01-10 01:38:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 282 states have (on average 1.301418439716312) internal successors, (367), 292 states have internal predecessors, (367), 0 states have call successors, (0), 0 states 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 01:38:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 367 transitions. [2022-01-10 01:38:22,229 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 367 transitions. Word has length 58 [2022-01-10 01:38:22,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:22,230 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 367 transitions. [2022-01-10 01:38:22,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 01:38:22,230 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 367 transitions. [2022-01-10 01:38:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 01:38:22,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:22,232 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] [2022-01-10 01:38:22,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:38:22,233 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:22,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1094505509, now seen corresponding path program 1 times [2022-01-10 01:38:22,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:22,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994597343] [2022-01-10 01:38:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:22,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:22,355 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 01:38:22,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:22,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994597343] [2022-01-10 01:38:22,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994597343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:22,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:22,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:22,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099712990] [2022-01-10 01:38:22,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:22,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:22,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:22,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:22,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:22,358 INFO L87 Difference]: Start difference. First operand 293 states and 367 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 01:38:22,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:22,596 INFO L93 Difference]: Finished difference Result 496 states and 637 transitions. [2022-01-10 01:38:22,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:22,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-01-10 01:38:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:22,598 INFO L225 Difference]: With dead ends: 496 [2022-01-10 01:38:22,598 INFO L226 Difference]: Without dead ends: 273 [2022-01-10 01:38:22,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:22,600 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 933 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:22,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 211 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:38:22,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-01-10 01:38:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2022-01-10 01:38:22,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 262 states have (on average 1.3053435114503817) internal successors, (342), 272 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 01:38:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 342 transitions. [2022-01-10 01:38:22,622 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 342 transitions. Word has length 59 [2022-01-10 01:38:22,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:22,627 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 342 transitions. [2022-01-10 01:38:22,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 01:38:22,627 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 342 transitions. [2022-01-10 01:38:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 01:38:22,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:22,631 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] [2022-01-10 01:38:22,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:38:22,631 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:22,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:22,631 INFO L85 PathProgramCache]: Analyzing trace with hash 568036411, now seen corresponding path program 1 times [2022-01-10 01:38:22,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:22,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921935502] [2022-01-10 01:38:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:22,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:22,719 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 01:38:22,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:22,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921935502] [2022-01-10 01:38:22,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921935502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:22,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:22,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:22,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469058058] [2022-01-10 01:38:22,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:22,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:22,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:22,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:22,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:22,721 INFO L87 Difference]: Start difference. First operand 273 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 01:38:22,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:22,855 INFO L93 Difference]: Finished difference Result 476 states and 611 transitions. [2022-01-10 01:38:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:22,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-10 01:38:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:22,857 INFO L225 Difference]: With dead ends: 476 [2022-01-10 01:38:22,857 INFO L226 Difference]: Without dead ends: 254 [2022-01-10 01:38:22,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:22,860 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 905 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:22,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 200 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:38:22,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-01-10 01:38:22,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2022-01-10 01:38:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.316872427983539) internal successors, (320), 253 states have internal predecessors, (320), 0 states have call successors, (0), 0 states 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 01:38:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 320 transitions. [2022-01-10 01:38:22,871 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 320 transitions. Word has length 60 [2022-01-10 01:38:22,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:22,873 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 320 transitions. [2022-01-10 01:38:22,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 01:38:22,873 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 320 transitions. [2022-01-10 01:38:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 01:38:22,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:22,873 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] [2022-01-10 01:38:22,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:38:22,874 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash -715476529, now seen corresponding path program 1 times [2022-01-10 01:38:22,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:22,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58261910] [2022-01-10 01:38:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:22,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:22,944 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 01:38:22,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:22,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58261910] [2022-01-10 01:38:22,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58261910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:22,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:22,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:38:22,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456643335] [2022-01-10 01:38:22,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:22,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:38:22,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:22,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:38:22,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:38:22,952 INFO L87 Difference]: Start difference. First operand 254 states and 320 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 01:38:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:23,084 INFO L93 Difference]: Finished difference Result 457 states and 588 transitions. [2022-01-10 01:38:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:38:23,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-10 01:38:23,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:23,085 INFO L225 Difference]: With dead ends: 457 [2022-01-10 01:38:23,085 INFO L226 Difference]: Without dead ends: 246 [2022-01-10 01:38:23,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:38:23,087 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 858 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:23,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 196 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:38:23,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-01-10 01:38:23,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-01-10 01:38:23,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3191489361702127) internal successors, (310), 245 states have internal predecessors, (310), 0 states have call successors, (0), 0 states 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 01:38:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 310 transitions. [2022-01-10 01:38:23,097 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 310 transitions. Word has length 61 [2022-01-10 01:38:23,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:23,097 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 310 transitions. [2022-01-10 01:38:23,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states 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 01:38:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 310 transitions. [2022-01-10 01:38:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:38:23,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:23,099 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] [2022-01-10 01:38:23,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:38:23,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:23,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash 207205371, now seen corresponding path program 1 times [2022-01-10 01:38:23,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:23,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498144591] [2022-01-10 01:38:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:23,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:23,226 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 01:38:23,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:23,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498144591] [2022-01-10 01:38:23,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498144591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:23,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:23,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:23,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90934587] [2022-01-10 01:38:23,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:23,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:23,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:23,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:23,228 INFO L87 Difference]: Start difference. First operand 246 states and 310 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:23,672 INFO L93 Difference]: Finished difference Result 580 states and 772 transitions. [2022-01-10 01:38:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-10 01:38:23,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:23,674 INFO L225 Difference]: With dead ends: 580 [2022-01-10 01:38:23,674 INFO L226 Difference]: Without dead ends: 492 [2022-01-10 01:38:23,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:23,675 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 1566 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:23,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1566 Valid, 877 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-01-10 01:38:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 246. [2022-01-10 01:38:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3148936170212766) internal successors, (309), 245 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 01:38:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 309 transitions. [2022-01-10 01:38:23,689 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 309 transitions. Word has length 62 [2022-01-10 01:38:23,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:23,690 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 309 transitions. [2022-01-10 01:38:23,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 309 transitions. [2022-01-10 01:38:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:38:23,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:23,690 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] [2022-01-10 01:38:23,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:38:23,691 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:23,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:23,706 INFO L85 PathProgramCache]: Analyzing trace with hash -201639857, now seen corresponding path program 1 times [2022-01-10 01:38:23,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:23,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269840078] [2022-01-10 01:38:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:23,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:23,802 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 01:38:23,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:23,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269840078] [2022-01-10 01:38:23,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269840078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:23,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:23,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:23,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969776356] [2022-01-10 01:38:23,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:23,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:23,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:23,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:23,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:23,803 INFO L87 Difference]: Start difference. First operand 246 states and 309 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:24,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:24,348 INFO L93 Difference]: Finished difference Result 554 states and 738 transitions. [2022-01-10 01:38:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:24,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-10 01:38:24,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:24,350 INFO L225 Difference]: With dead ends: 554 [2022-01-10 01:38:24,350 INFO L226 Difference]: Without dead ends: 488 [2022-01-10 01:38:24,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:38:24,352 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 1847 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:24,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1847 Valid, 1005 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-01-10 01:38:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-01-10 01:38:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3106382978723403) internal successors, (308), 245 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 01:38:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 308 transitions. [2022-01-10 01:38:24,370 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 308 transitions. Word has length 62 [2022-01-10 01:38:24,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:24,370 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 308 transitions. [2022-01-10 01:38:24,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 308 transitions. [2022-01-10 01:38:24,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:38:24,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:24,371 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] [2022-01-10 01:38:24,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:38:24,371 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1938423665, now seen corresponding path program 1 times [2022-01-10 01:38:24,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:24,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542964319] [2022-01-10 01:38:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:24,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:24,492 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 01:38:24,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:24,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542964319] [2022-01-10 01:38:24,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542964319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:24,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:24,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 01:38:24,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278110007] [2022-01-10 01:38:24,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:24,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:38:24,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:38:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:38:24,493 INFO L87 Difference]: Start difference. First operand 246 states and 308 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:24,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:24,955 INFO L93 Difference]: Finished difference Result 582 states and 771 transitions. [2022-01-10 01:38:24,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 01:38:24,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-10 01:38:24,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:24,957 INFO L225 Difference]: With dead ends: 582 [2022-01-10 01:38:24,957 INFO L226 Difference]: Without dead ends: 488 [2022-01-10 01:38:24,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-01-10 01:38:24,958 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1705 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:24,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1705 Valid, 1101 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-01-10 01:38:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-01-10 01:38:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3063829787234043) internal successors, (307), 245 states have internal predecessors, (307), 0 states have call successors, (0), 0 states 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 01:38:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 307 transitions. [2022-01-10 01:38:24,971 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 307 transitions. Word has length 62 [2022-01-10 01:38:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:24,972 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 307 transitions. [2022-01-10 01:38:24,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 307 transitions. [2022-01-10 01:38:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:38:24,972 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:24,972 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] [2022-01-10 01:38:24,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:38:24,973 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:24,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1233191565, now seen corresponding path program 1 times [2022-01-10 01:38:24,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:24,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200227962] [2022-01-10 01:38:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:24,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:25,055 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 01:38:25,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:25,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200227962] [2022-01-10 01:38:25,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200227962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:25,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:25,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 01:38:25,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157553590] [2022-01-10 01:38:25,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:25,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:38:25,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:25,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:38:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:38:25,057 INFO L87 Difference]: Start difference. First operand 246 states and 307 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:25,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:25,550 INFO L93 Difference]: Finished difference Result 481 states and 626 transitions. [2022-01-10 01:38:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 01:38:25,550 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-10 01:38:25,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:25,552 INFO L225 Difference]: With dead ends: 481 [2022-01-10 01:38:25,552 INFO L226 Difference]: Without dead ends: 476 [2022-01-10 01:38:25,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-01-10 01:38:25,552 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1388 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:25,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 1333 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:38:25,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-01-10 01:38:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 246. [2022-01-10 01:38:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3021276595744682) internal successors, (306), 245 states have internal predecessors, (306), 0 states have call successors, (0), 0 states 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 01:38:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 306 transitions. [2022-01-10 01:38:25,567 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 306 transitions. Word has length 62 [2022-01-10 01:38:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:25,567 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 306 transitions. [2022-01-10 01:38:25,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 306 transitions. [2022-01-10 01:38:25,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:38:25,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:25,568 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] [2022-01-10 01:38:25,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:38:25,568 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:25,568 INFO L85 PathProgramCache]: Analyzing trace with hash 679005537, now seen corresponding path program 1 times [2022-01-10 01:38:25,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:25,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085952615] [2022-01-10 01:38:25,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:25,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:25,635 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 01:38:25,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:25,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085952615] [2022-01-10 01:38:25,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085952615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:25,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:25,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:38:25,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759703441] [2022-01-10 01:38:25,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:25,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:38:25,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:25,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:38:25,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:38:25,636 INFO L87 Difference]: Start difference. First operand 246 states and 306 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:25,996 INFO L93 Difference]: Finished difference Result 485 states and 606 transitions. [2022-01-10 01:38:25,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:38:25,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-10 01:38:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:25,997 INFO L225 Difference]: With dead ends: 485 [2022-01-10 01:38:25,997 INFO L226 Difference]: Without dead ends: 352 [2022-01-10 01:38:25,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-01-10 01:38:26,000 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 1611 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:26,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1611 Valid, 632 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:38:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-01-10 01:38:26,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 246. [2022-01-10 01:38:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.297872340425532) internal successors, (305), 245 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 01:38:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 305 transitions. [2022-01-10 01:38:26,026 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 305 transitions. Word has length 62 [2022-01-10 01:38:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:26,027 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 305 transitions. [2022-01-10 01:38:26,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 01:38:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 305 transitions. [2022-01-10 01:38:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:38:26,030 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:26,030 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] [2022-01-10 01:38:26,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:38:26,031 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:26,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:26,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2031197374, now seen corresponding path program 1 times [2022-01-10 01:38:26,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:26,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214018226] [2022-01-10 01:38:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:26,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:26,142 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 01:38:26,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:26,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214018226] [2022-01-10 01:38:26,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214018226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:26,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:26,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:26,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161524715] [2022-01-10 01:38:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:26,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:26,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:26,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:26,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:26,144 INFO L87 Difference]: Start difference. First operand 246 states and 305 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:26,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:26,568 INFO L93 Difference]: Finished difference Result 539 states and 709 transitions. [2022-01-10 01:38:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:26,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 01:38:26,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:26,570 INFO L225 Difference]: With dead ends: 539 [2022-01-10 01:38:26,570 INFO L226 Difference]: Without dead ends: 480 [2022-01-10 01:38:26,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:26,571 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 946 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:26,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 962 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:26,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-01-10 01:38:26,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2022-01-10 01:38:26,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2936170212765958) internal successors, (304), 245 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 01:38:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 304 transitions. [2022-01-10 01:38:26,588 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 304 transitions. Word has length 64 [2022-01-10 01:38:26,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:26,589 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 304 transitions. [2022-01-10 01:38:26,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 304 transitions. [2022-01-10 01:38:26,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:38:26,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:26,589 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] [2022-01-10 01:38:26,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 01:38:26,590 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash -119000272, now seen corresponding path program 1 times [2022-01-10 01:38:26,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:26,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760333199] [2022-01-10 01:38:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:26,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:26,673 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 01:38:26,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:26,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760333199] [2022-01-10 01:38:26,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760333199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:26,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:26,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:26,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26015227] [2022-01-10 01:38:26,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:26,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:26,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:26,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:26,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:26,674 INFO L87 Difference]: Start difference. First operand 246 states and 304 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:27,189 INFO L93 Difference]: Finished difference Result 559 states and 737 transitions. [2022-01-10 01:38:27,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 01:38:27,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:27,191 INFO L225 Difference]: With dead ends: 559 [2022-01-10 01:38:27,191 INFO L226 Difference]: Without dead ends: 488 [2022-01-10 01:38:27,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:27,192 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 858 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:27,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 1251 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:27,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-01-10 01:38:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-01-10 01:38:27,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 245 states have internal predecessors, (303), 0 states have call successors, (0), 0 states 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 01:38:27,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 303 transitions. [2022-01-10 01:38:27,210 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 303 transitions. Word has length 64 [2022-01-10 01:38:27,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:27,210 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 303 transitions. [2022-01-10 01:38:27,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 303 transitions. [2022-01-10 01:38:27,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:38:27,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:27,211 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] [2022-01-10 01:38:27,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 01:38:27,211 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:27,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:27,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1520301075, now seen corresponding path program 1 times [2022-01-10 01:38:27,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:27,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542592778] [2022-01-10 01:38:27,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:27,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:27,287 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 01:38:27,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:27,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542592778] [2022-01-10 01:38:27,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542592778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:27,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:27,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:27,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950586742] [2022-01-10 01:38:27,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:27,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:27,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:27,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:27,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:27,289 INFO L87 Difference]: Start difference. First operand 246 states and 303 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:27,755 INFO L93 Difference]: Finished difference Result 536 states and 704 transitions. [2022-01-10 01:38:27,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:27,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 01:38:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:27,757 INFO L225 Difference]: With dead ends: 536 [2022-01-10 01:38:27,757 INFO L226 Difference]: Without dead ends: 480 [2022-01-10 01:38:27,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:27,758 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 867 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:27,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [867 Valid, 1116 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:27,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-01-10 01:38:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2022-01-10 01:38:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2851063829787235) internal successors, (302), 245 states have internal predecessors, (302), 0 states have call successors, (0), 0 states 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 01:38:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2022-01-10 01:38:27,777 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 64 [2022-01-10 01:38:27,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:27,777 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2022-01-10 01:38:27,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2022-01-10 01:38:27,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:38:27,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:27,778 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] [2022-01-10 01:38:27,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 01:38:27,778 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:27,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1508633347, now seen corresponding path program 1 times [2022-01-10 01:38:27,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:27,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484964472] [2022-01-10 01:38:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:27,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:27,842 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 01:38:27,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:27,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484964472] [2022-01-10 01:38:27,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484964472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:27,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:27,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:27,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779000150] [2022-01-10 01:38:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:27,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:27,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:27,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:27,844 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:28,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:28,373 INFO L93 Difference]: Finished difference Result 485 states and 625 transitions. [2022-01-10 01:38:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:28,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 01:38:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:28,375 INFO L225 Difference]: With dead ends: 485 [2022-01-10 01:38:28,375 INFO L226 Difference]: Without dead ends: 480 [2022-01-10 01:38:28,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:28,376 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 1441 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:28,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 1252 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:38:28,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-01-10 01:38:28,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2022-01-10 01:38:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 245 states have internal predecessors, (301), 0 states have call successors, (0), 0 states 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 01:38:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 301 transitions. [2022-01-10 01:38:28,395 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 301 transitions. Word has length 64 [2022-01-10 01:38:28,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:28,395 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 301 transitions. [2022-01-10 01:38:28,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 301 transitions. [2022-01-10 01:38:28,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:38:28,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:28,396 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] [2022-01-10 01:38:28,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 01:38:28,396 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1008042549, now seen corresponding path program 1 times [2022-01-10 01:38:28,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:28,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396930646] [2022-01-10 01:38:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:28,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:28,474 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 01:38:28,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:28,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396930646] [2022-01-10 01:38:28,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396930646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:28,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:28,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:28,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086729225] [2022-01-10 01:38:28,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:28,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:28,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:28,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:28,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:28,476 INFO L87 Difference]: Start difference. First operand 246 states and 301 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:29,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:29,013 INFO L93 Difference]: Finished difference Result 505 states and 652 transitions. [2022-01-10 01:38:29,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:38:29,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 01:38:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:29,015 INFO L225 Difference]: With dead ends: 505 [2022-01-10 01:38:29,015 INFO L226 Difference]: Without dead ends: 488 [2022-01-10 01:38:29,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:38:29,016 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 1413 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:29,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 1308 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:38:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-01-10 01:38:29,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-01-10 01:38:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 245 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 01:38:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 300 transitions. [2022-01-10 01:38:29,036 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 300 transitions. Word has length 64 [2022-01-10 01:38:29,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:29,036 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 300 transitions. [2022-01-10 01:38:29,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 01:38:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 300 transitions. [2022-01-10 01:38:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:38:29,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:29,037 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] [2022-01-10 01:38:29,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 01:38:29,037 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash 370944031, now seen corresponding path program 1 times [2022-01-10 01:38:29,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:29,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965502113] [2022-01-10 01:38:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:29,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:29,262 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 01:38:29,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:29,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965502113] [2022-01-10 01:38:29,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965502113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:29,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:29,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:38:29,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232152396] [2022-01-10 01:38:29,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:29,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:38:29,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:29,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:38:29,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:38:29,264 INFO L87 Difference]: Start difference. First operand 246 states and 300 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:29,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:29,892 INFO L93 Difference]: Finished difference Result 708 states and 925 transitions. [2022-01-10 01:38:29,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 01:38:29,892 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 01:38:29,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:29,895 INFO L225 Difference]: With dead ends: 708 [2022-01-10 01:38:29,895 INFO L226 Difference]: Without dead ends: 591 [2022-01-10 01:38:29,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-01-10 01:38:29,898 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1971 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:29,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1971 Valid, 1489 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:38:29,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-01-10 01:38:29,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 183. [2022-01-10 01:38:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 176 states have (on average 1.2670454545454546) internal successors, (223), 182 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 01:38:29,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2022-01-10 01:38:29,922 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 223 transitions. Word has length 66 [2022-01-10 01:38:29,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:29,922 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 223 transitions. [2022-01-10 01:38:29,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 223 transitions. [2022-01-10 01:38:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:38:29,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:29,923 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] [2022-01-10 01:38:29,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 01:38:29,923 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:29,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1787778406, now seen corresponding path program 1 times [2022-01-10 01:38:29,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:29,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666446590] [2022-01-10 01:38:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:29,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:30,303 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 01:38:30,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:30,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666446590] [2022-01-10 01:38:30,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666446590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:30,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:30,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-10 01:38:30,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62702610] [2022-01-10 01:38:30,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:30,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 01:38:30,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:30,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 01:38:30,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:38:30,305 INFO L87 Difference]: Start difference. First operand 183 states and 223 transitions. Second operand has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:31,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:31,346 INFO L93 Difference]: Finished difference Result 463 states and 589 transitions. [2022-01-10 01:38:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 01:38:31,346 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 01:38:31,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:31,348 INFO L225 Difference]: With dead ends: 463 [2022-01-10 01:38:31,348 INFO L226 Difference]: Without dead ends: 405 [2022-01-10 01:38:31,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-01-10 01:38:31,349 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1462 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:31,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1462 Valid, 1906 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:38:31,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-01-10 01:38:31,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 199. [2022-01-10 01:38:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 192 states have (on average 1.28125) internal successors, (246), 198 states have internal predecessors, (246), 0 states have call successors, (0), 0 states 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 01:38:31,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 246 transitions. [2022-01-10 01:38:31,377 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 246 transitions. Word has length 66 [2022-01-10 01:38:31,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:31,377 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 246 transitions. [2022-01-10 01:38:31,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:31,378 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 246 transitions. [2022-01-10 01:38:31,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:38:31,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:31,379 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] [2022-01-10 01:38:31,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 01:38:31,379 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:31,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:31,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1127331716, now seen corresponding path program 1 times [2022-01-10 01:38:31,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:31,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725566950] [2022-01-10 01:38:31,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:31,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:32,001 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 01:38:32,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:32,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725566950] [2022-01-10 01:38:32,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725566950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:32,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:32,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-10 01:38:32,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483701601] [2022-01-10 01:38:32,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:32,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-10 01:38:32,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:32,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-10 01:38:32,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2022-01-10 01:38:32,003 INFO L87 Difference]: Start difference. First operand 199 states and 246 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:34,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:34,407 INFO L93 Difference]: Finished difference Result 618 states and 780 transitions. [2022-01-10 01:38:34,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-10 01:38:34,408 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 01:38:34,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:34,409 INFO L225 Difference]: With dead ends: 618 [2022-01-10 01:38:34,409 INFO L226 Difference]: Without dead ends: 614 [2022-01-10 01:38:34,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=343, Invalid=1727, Unknown=0, NotChecked=0, Total=2070 [2022-01-10 01:38:34,410 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 2053 mSDsluCounter, 4895 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 5323 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:34,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2053 Valid, 5323 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 01:38:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-01-10 01:38:34,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 208. [2022-01-10 01:38:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 201 states have (on average 1.2835820895522387) internal successors, (258), 207 states have internal predecessors, (258), 0 states have call successors, (0), 0 states 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 01:38:34,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2022-01-10 01:38:34,445 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 66 [2022-01-10 01:38:34,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:34,445 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2022-01-10 01:38:34,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:34,445 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2022-01-10 01:38:34,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:38:34,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:34,446 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] [2022-01-10 01:38:34,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 01:38:34,446 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:34,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:34,446 INFO L85 PathProgramCache]: Analyzing trace with hash -653185432, now seen corresponding path program 1 times [2022-01-10 01:38:34,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:34,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141640889] [2022-01-10 01:38:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:34,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:34,689 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 01:38:34,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:34,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141640889] [2022-01-10 01:38:34,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141640889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:34,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:34,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-10 01:38:34,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928729086] [2022-01-10 01:38:34,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:34,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-10 01:38:34,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-10 01:38:34,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:38:34,691 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:35,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:35,839 INFO L93 Difference]: Finished difference Result 651 states and 841 transitions. [2022-01-10 01:38:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-10 01:38:35,839 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 01:38:35,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:35,840 INFO L225 Difference]: With dead ends: 651 [2022-01-10 01:38:35,840 INFO L226 Difference]: Without dead ends: 590 [2022-01-10 01:38:35,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=246, Invalid=1160, Unknown=0, NotChecked=0, Total=1406 [2022-01-10 01:38:35,843 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1372 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 4590 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:35,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1372 Valid, 4590 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:38:35,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-01-10 01:38:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 213. [2022-01-10 01:38:35,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 206 states have (on average 1.2815533980582525) internal successors, (264), 212 states have internal predecessors, (264), 0 states have call successors, (0), 0 states 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 01:38:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 264 transitions. [2022-01-10 01:38:35,878 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 264 transitions. Word has length 66 [2022-01-10 01:38:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:35,878 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 264 transitions. [2022-01-10 01:38:35,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 01:38:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 264 transitions. [2022-01-10 01:38:35,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:38:35,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:35,879 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] [2022-01-10 01:38:35,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 01:38:35,879 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:35,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:35,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1673815221, now seen corresponding path program 1 times [2022-01-10 01:38:35,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:35,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972459217] [2022-01-10 01:38:35,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:35,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:36,112 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 01:38:36,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:36,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972459217] [2022-01-10 01:38:36,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972459217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:36,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:36,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 01:38:36,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841627609] [2022-01-10 01:38:36,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:36,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:38:36,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:36,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:38:36,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:38:36,114 INFO L87 Difference]: Start difference. First operand 213 states and 264 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:37,012 INFO L93 Difference]: Finished difference Result 606 states and 825 transitions. [2022-01-10 01:38:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:38:37,013 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 01:38:37,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:37,015 INFO L225 Difference]: With dead ends: 606 [2022-01-10 01:38:37,015 INFO L226 Difference]: Without dead ends: 532 [2022-01-10 01:38:37,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-10 01:38:37,016 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 1467 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:37,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 2182 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:38:37,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-01-10 01:38:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 187. [2022-01-10 01:38:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.2637362637362637) internal successors, (230), 186 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 01:38:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 230 transitions. [2022-01-10 01:38:37,083 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 230 transitions. Word has length 67 [2022-01-10 01:38:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:37,084 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 230 transitions. [2022-01-10 01:38:37,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 230 transitions. [2022-01-10 01:38:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:38:37,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:37,085 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] [2022-01-10 01:38:37,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 01:38:37,085 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:37,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1241294901, now seen corresponding path program 1 times [2022-01-10 01:38:37,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:37,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689551943] [2022-01-10 01:38:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:37,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:37,505 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 01:38:37,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:37,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689551943] [2022-01-10 01:38:37,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689551943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:37,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:37,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-10 01:38:37,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813898383] [2022-01-10 01:38:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:37,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 01:38:37,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 01:38:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:38:37,507 INFO L87 Difference]: Start difference. First operand 187 states and 230 transitions. Second operand has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:38,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:38,878 INFO L93 Difference]: Finished difference Result 372 states and 472 transitions. [2022-01-10 01:38:38,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 01:38:38,878 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 01:38:38,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:38,879 INFO L225 Difference]: With dead ends: 372 [2022-01-10 01:38:38,879 INFO L226 Difference]: Without dead ends: 368 [2022-01-10 01:38:38,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2022-01-10 01:38:38,880 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1532 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:38,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1532 Valid, 1863 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:38:38,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-01-10 01:38:38,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 187. [2022-01-10 01:38:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.2637362637362637) internal successors, (230), 186 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 01:38:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 230 transitions. [2022-01-10 01:38:38,917 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 230 transitions. Word has length 67 [2022-01-10 01:38:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:38,917 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 230 transitions. [2022-01-10 01:38:38,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 230 transitions. [2022-01-10 01:38:38,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:38:38,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:38,918 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] [2022-01-10 01:38:38,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 01:38:38,918 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:38,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:38,919 INFO L85 PathProgramCache]: Analyzing trace with hash -539222247, now seen corresponding path program 1 times [2022-01-10 01:38:38,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:38,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825442051] [2022-01-10 01:38:38,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:38,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:39,219 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 01:38:39,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:39,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825442051] [2022-01-10 01:38:39,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825442051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:39,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:39,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-10 01:38:39,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595713076] [2022-01-10 01:38:39,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:39,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 01:38:39,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:39,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 01:38:39,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-01-10 01:38:39,220 INFO L87 Difference]: Start difference. First operand 187 states and 230 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:40,105 INFO L93 Difference]: Finished difference Result 605 states and 814 transitions. [2022-01-10 01:38:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 01:38:40,106 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 01:38:40,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:40,107 INFO L225 Difference]: With dead ends: 605 [2022-01-10 01:38:40,107 INFO L226 Difference]: Without dead ends: 512 [2022-01-10 01:38:40,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2022-01-10 01:38:40,108 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 1310 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:40,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 2885 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:40,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-01-10 01:38:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 178. [2022-01-10 01:38:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.2485549132947977) internal successors, (216), 177 states have internal predecessors, (216), 0 states have call successors, (0), 0 states 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 01:38:40,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 216 transitions. [2022-01-10 01:38:40,149 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 216 transitions. Word has length 67 [2022-01-10 01:38:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:40,149 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 216 transitions. [2022-01-10 01:38:40,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 216 transitions. [2022-01-10 01:38:40,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:38:40,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:40,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:38:40,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 01:38:40,149 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:40,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash -710008920, now seen corresponding path program 1 times [2022-01-10 01:38:40,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:40,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414263612] [2022-01-10 01:38:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:40,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:40,212 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 01:38:40,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:40,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414263612] [2022-01-10 01:38:40,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414263612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:40,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:40,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:38:40,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778765690] [2022-01-10 01:38:40,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:40,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:38:40,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:40,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:38:40,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:40,214 INFO L87 Difference]: Start difference. First operand 178 states and 216 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:40,519 INFO L93 Difference]: Finished difference Result 331 states and 427 transitions. [2022-01-10 01:38:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 01:38:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 01:38:40,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:40,550 INFO L225 Difference]: With dead ends: 331 [2022-01-10 01:38:40,550 INFO L226 Difference]: Without dead ends: 259 [2022-01-10 01:38:40,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-01-10 01:38:40,551 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 519 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:40,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 618 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:38:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-01-10 01:38:40,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 178. [2022-01-10 01:38:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.2427745664739884) internal successors, (215), 177 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 01:38:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 215 transitions. [2022-01-10 01:38:40,593 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 215 transitions. Word has length 67 [2022-01-10 01:38:40,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:40,594 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 215 transitions. [2022-01-10 01:38:40,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 215 transitions. [2022-01-10 01:38:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:38:40,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:40,594 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] [2022-01-10 01:38:40,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 01:38:40,595 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:40,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:40,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1303055616, now seen corresponding path program 1 times [2022-01-10 01:38:40,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:40,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195181256] [2022-01-10 01:38:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:40,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:40,773 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 01:38:40,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:40,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195181256] [2022-01-10 01:38:40,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195181256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:40,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:40,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:38:40,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786018224] [2022-01-10 01:38:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:40,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:38:40,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:40,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:38:40,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:38:40,774 INFO L87 Difference]: Start difference. First operand 178 states and 215 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:41,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:41,664 INFO L93 Difference]: Finished difference Result 417 states and 543 transitions. [2022-01-10 01:38:41,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-10 01:38:41,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 01:38:41,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:41,665 INFO L225 Difference]: With dead ends: 417 [2022-01-10 01:38:41,665 INFO L226 Difference]: Without dead ends: 410 [2022-01-10 01:38:41,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-01-10 01:38:41,672 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1513 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:41,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 830 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:41,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-01-10 01:38:41,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 178. [2022-01-10 01:38:41,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.2369942196531791) internal successors, (214), 177 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 01:38:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 214 transitions. [2022-01-10 01:38:41,720 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 214 transitions. Word has length 67 [2022-01-10 01:38:41,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:41,720 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 214 transitions. [2022-01-10 01:38:41,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 214 transitions. [2022-01-10 01:38:41,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:38:41,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:41,729 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] [2022-01-10 01:38:41,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 01:38:41,729 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash 926661436, now seen corresponding path program 1 times [2022-01-10 01:38:41,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:41,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700397217] [2022-01-10 01:38:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:41,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:42,078 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 01:38:42,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:42,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700397217] [2022-01-10 01:38:42,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700397217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:42,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:42,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-10 01:38:42,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210144164] [2022-01-10 01:38:42,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:42,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-10 01:38:42,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:42,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-10 01:38:42,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-01-10 01:38:42,079 INFO L87 Difference]: Start difference. First operand 178 states and 214 transitions. Second operand has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:43,449 INFO L93 Difference]: Finished difference Result 483 states and 624 transitions. [2022-01-10 01:38:43,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-10 01:38:43,449 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 01:38:43,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:43,450 INFO L225 Difference]: With dead ends: 483 [2022-01-10 01:38:43,450 INFO L226 Difference]: Without dead ends: 479 [2022-01-10 01:38:43,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2022-01-10 01:38:43,451 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 1169 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:43,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 3319 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:38:43,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-01-10 01:38:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 172. [2022-01-10 01:38:43,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 171 states have internal predecessors, (207), 0 states have call successors, (0), 0 states 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 01:38:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 207 transitions. [2022-01-10 01:38:43,498 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 207 transitions. Word has length 67 [2022-01-10 01:38:43,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:43,499 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 207 transitions. [2022-01-10 01:38:43,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:43,499 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 207 transitions. [2022-01-10 01:38:43,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:38:43,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:43,499 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] [2022-01-10 01:38:43,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 01:38:43,499 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:43,500 INFO L85 PathProgramCache]: Analyzing trace with hash 763644804, now seen corresponding path program 1 times [2022-01-10 01:38:43,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:43,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718031558] [2022-01-10 01:38:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:43,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:43,708 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 01:38:43,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:43,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718031558] [2022-01-10 01:38:43,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718031558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:43,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:43,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 01:38:43,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7434988] [2022-01-10 01:38:43,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:43,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:38:43,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:38:43,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:38:43,709 INFO L87 Difference]: Start difference. First operand 172 states and 207 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:44,232 INFO L93 Difference]: Finished difference Result 409 states and 531 transitions. [2022-01-10 01:38:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:38:44,233 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-01-10 01:38:44,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:44,234 INFO L225 Difference]: With dead ends: 409 [2022-01-10 01:38:44,234 INFO L226 Difference]: Without dead ends: 377 [2022-01-10 01:38:44,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-10 01:38:44,234 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 847 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:44,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 2082 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:38:44,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-01-10 01:38:44,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 134. [2022-01-10 01:38:44,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 132 states have (on average 1.25) internal successors, (165), 133 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 01:38:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 165 transitions. [2022-01-10 01:38:44,274 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 165 transitions. Word has length 67 [2022-01-10 01:38:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:44,274 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 165 transitions. [2022-01-10 01:38:44,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 01:38:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 165 transitions. [2022-01-10 01:38:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 01:38:44,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:44,275 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] [2022-01-10 01:38:44,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 01:38:44,275 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1308874992, now seen corresponding path program 1 times [2022-01-10 01:38:44,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:44,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956320256] [2022-01-10 01:38:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:44,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:44,577 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 01:38:44,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:44,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956320256] [2022-01-10 01:38:44,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956320256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:44,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:44,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-10 01:38:44,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313311249] [2022-01-10 01:38:44,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:44,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 01:38:44,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:44,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 01:38:44,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-10 01:38:44,579 INFO L87 Difference]: Start difference. First operand 134 states and 165 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 01:38:45,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:45,579 INFO L93 Difference]: Finished difference Result 551 states and 767 transitions. [2022-01-10 01:38:45,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 01:38:45,580 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-10 01:38:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:45,581 INFO L225 Difference]: With dead ends: 551 [2022-01-10 01:38:45,581 INFO L226 Difference]: Without dead ends: 545 [2022-01-10 01:38:45,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-01-10 01:38:45,582 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1215 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:45,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 2566 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:38:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-01-10 01:38:45,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 128. [2022-01-10 01:38:45,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.2519685039370079) internal successors, (159), 127 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:45,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 159 transitions. [2022-01-10 01:38:45,624 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 159 transitions. Word has length 69 [2022-01-10 01:38:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:45,624 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 159 transitions. [2022-01-10 01:38:45,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 01:38:45,624 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 159 transitions. [2022-01-10 01:38:45,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 01:38:45,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:45,625 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] [2022-01-10 01:38:45,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 01:38:45,625 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:45,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:45,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1208516883, now seen corresponding path program 1 times [2022-01-10 01:38:45,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:45,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701132216] [2022-01-10 01:38:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:45,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:45,662 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 01:38:45,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:45,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701132216] [2022-01-10 01:38:45,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701132216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:45,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:45,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:38:45,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948852368] [2022-01-10 01:38:45,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:45,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:38:45,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:45,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:38:45,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:38:45,664 INFO L87 Difference]: Start difference. First operand 128 states and 159 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 01:38:45,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:45,984 INFO L93 Difference]: Finished difference Result 560 states and 799 transitions. [2022-01-10 01:38:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 01:38:45,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-01-10 01:38:45,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:45,985 INFO L225 Difference]: With dead ends: 560 [2022-01-10 01:38:45,985 INFO L226 Difference]: Without dead ends: 506 [2022-01-10 01:38:45,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:38:45,986 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 895 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:45,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 950 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:45,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-01-10 01:38:46,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 180. [2022-01-10 01:38:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.318435754189944) internal successors, (236), 179 states have internal predecessors, (236), 0 states have call successors, (0), 0 states 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 01:38:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 236 transitions. [2022-01-10 01:38:46,070 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 236 transitions. Word has length 92 [2022-01-10 01:38:46,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:46,070 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 236 transitions. [2022-01-10 01:38:46,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 01:38:46,070 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 236 transitions. [2022-01-10 01:38:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:38:46,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:46,071 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] [2022-01-10 01:38:46,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 01:38:46,071 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1324206254, now seen corresponding path program 1 times [2022-01-10 01:38:46,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:46,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848467233] [2022-01-10 01:38:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:46,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:46,109 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 01:38:46,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:46,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848467233] [2022-01-10 01:38:46,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848467233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:46,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:46,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:38:46,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095339563] [2022-01-10 01:38:46,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:46,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:38:46,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:46,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:38:46,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:38:46,110 INFO L87 Difference]: Start difference. First operand 180 states and 236 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:46,452 INFO L93 Difference]: Finished difference Result 658 states and 942 transitions. [2022-01-10 01:38:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:38:46,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 01:38:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:46,453 INFO L225 Difference]: With dead ends: 658 [2022-01-10 01:38:46,453 INFO L226 Difference]: Without dead ends: 552 [2022-01-10 01:38:46,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:46,454 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 647 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:46,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 673 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-01-10 01:38:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 284. [2022-01-10 01:38:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.3816254416961131) internal successors, (391), 283 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 01:38:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 391 transitions. [2022-01-10 01:38:46,604 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 391 transitions. Word has length 94 [2022-01-10 01:38:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:46,604 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 391 transitions. [2022-01-10 01:38:46,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:46,604 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 391 transitions. [2022-01-10 01:38:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:38:46,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:46,605 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] [2022-01-10 01:38:46,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 01:38:46,605 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:46,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1309824789, now seen corresponding path program 1 times [2022-01-10 01:38:46,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:46,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16239192] [2022-01-10 01:38:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:46,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:46,707 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 01:38:46,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:46,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16239192] [2022-01-10 01:38:46,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16239192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:46,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:46,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:38:46,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084848479] [2022-01-10 01:38:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:46,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:38:46,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:46,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:38:46,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:38:46,709 INFO L87 Difference]: Start difference. First operand 284 states and 391 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:46,913 INFO L93 Difference]: Finished difference Result 496 states and 704 transitions. [2022-01-10 01:38:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:38:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 01:38:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:46,914 INFO L225 Difference]: With dead ends: 496 [2022-01-10 01:38:46,915 INFO L226 Difference]: Without dead ends: 286 [2022-01-10 01:38:46,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:38:46,915 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 420 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:46,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 377 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-01-10 01:38:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2022-01-10 01:38:47,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.3745583038869258) internal successors, (389), 283 states have internal predecessors, (389), 0 states have call successors, (0), 0 states 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 01:38:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 389 transitions. [2022-01-10 01:38:47,069 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 389 transitions. Word has length 94 [2022-01-10 01:38:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:47,069 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 389 transitions. [2022-01-10 01:38:47,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 389 transitions. [2022-01-10 01:38:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:38:47,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:47,069 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] [2022-01-10 01:38:47,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 01:38:47,070 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 570084468, now seen corresponding path program 1 times [2022-01-10 01:38:47,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:47,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225245749] [2022-01-10 01:38:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:47,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:47,094 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 01:38:47,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:47,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225245749] [2022-01-10 01:38:47,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225245749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:47,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:47,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:38:47,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347521674] [2022-01-10 01:38:47,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:47,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:38:47,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:47,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:38:47,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:38:47,095 INFO L87 Difference]: Start difference. First operand 284 states and 389 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:47,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:47,368 INFO L93 Difference]: Finished difference Result 678 states and 965 transitions. [2022-01-10 01:38:47,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:38:47,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 01:38:47,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:47,369 INFO L225 Difference]: With dead ends: 678 [2022-01-10 01:38:47,369 INFO L226 Difference]: Without dead ends: 468 [2022-01-10 01:38:47,369 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 01:38:47,370 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 89 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:47,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 251 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:47,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-01-10 01:38:47,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 462. [2022-01-10 01:38:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.3882863340563991) internal successors, (640), 461 states have internal predecessors, (640), 0 states have call successors, (0), 0 states 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 01:38:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 640 transitions. [2022-01-10 01:38:47,638 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 640 transitions. Word has length 94 [2022-01-10 01:38:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:47,638 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 640 transitions. [2022-01-10 01:38:47,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 640 transitions. [2022-01-10 01:38:47,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:38:47,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:47,639 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] [2022-01-10 01:38:47,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 01:38:47,639 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:47,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash -337360546, now seen corresponding path program 1 times [2022-01-10 01:38:47,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:47,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381856375] [2022-01-10 01:38:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:47,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:47,677 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 01:38:47,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:47,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381856375] [2022-01-10 01:38:47,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381856375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:47,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:47,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:38:47,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374304672] [2022-01-10 01:38:47,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:47,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:38:47,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:47,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:38:47,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:38:47,678 INFO L87 Difference]: Start difference. First operand 462 states and 640 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:48,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:48,424 INFO L93 Difference]: Finished difference Result 1341 states and 1908 transitions. [2022-01-10 01:38:48,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:38:48,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 01:38:48,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:48,427 INFO L225 Difference]: With dead ends: 1341 [2022-01-10 01:38:48,427 INFO L226 Difference]: Without dead ends: 1146 [2022-01-10 01:38:48,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:48,428 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 615 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:48,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 683 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:48,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-01-10 01:38:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 752. [2022-01-10 01:38:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.4087882822902795) internal successors, (1058), 751 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states 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 01:38:48,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1058 transitions. [2022-01-10 01:38:48,889 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1058 transitions. Word has length 94 [2022-01-10 01:38:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:48,889 INFO L470 AbstractCegarLoop]: Abstraction has 752 states and 1058 transitions. [2022-01-10 01:38:48,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:48,889 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1058 transitions. [2022-01-10 01:38:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:38:48,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:48,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:38:48,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 01:38:48,890 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1456780136, now seen corresponding path program 1 times [2022-01-10 01:38:48,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:48,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605048999] [2022-01-10 01:38:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:48,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:48,951 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 01:38:48,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:48,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605048999] [2022-01-10 01:38:48,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605048999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:48,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:48,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:38:48,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675998863] [2022-01-10 01:38:48,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:48,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:38:48,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:48,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:38:48,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:38:48,952 INFO L87 Difference]: Start difference. First operand 752 states and 1058 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:49,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:49,895 INFO L93 Difference]: Finished difference Result 1534 states and 2187 transitions. [2022-01-10 01:38:49,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:38:49,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 01:38:49,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:49,898 INFO L225 Difference]: With dead ends: 1534 [2022-01-10 01:38:49,899 INFO L226 Difference]: Without dead ends: 1339 [2022-01-10 01:38:49,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:49,899 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 584 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:49,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 734 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:49,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-01-10 01:38:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 945. [2022-01-10 01:38:50,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 944 states have (on average 1.416313559322034) internal successors, (1337), 944 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states 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 01:38:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1337 transitions. [2022-01-10 01:38:50,495 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1337 transitions. Word has length 94 [2022-01-10 01:38:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:50,495 INFO L470 AbstractCegarLoop]: Abstraction has 945 states and 1337 transitions. [2022-01-10 01:38:50,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states 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 01:38:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1337 transitions. [2022-01-10 01:38:50,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 01:38:50,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:50,500 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] [2022-01-10 01:38:50,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 01:38:50,501 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:50,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1890695249, now seen corresponding path program 1 times [2022-01-10 01:38:50,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:50,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184895806] [2022-01-10 01:38:50,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:50,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:50,532 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 01:38:50,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:50,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184895806] [2022-01-10 01:38:50,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184895806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:50,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:50,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:38:50,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000387844] [2022-01-10 01:38:50,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:50,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:38:50,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:50,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:38:50,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:38:50,534 INFO L87 Difference]: Start difference. First operand 945 states and 1337 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 01:38:51,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:51,767 INFO L93 Difference]: Finished difference Result 2615 states and 3727 transitions. [2022-01-10 01:38:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:38:51,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 01:38:51,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:51,772 INFO L225 Difference]: With dead ends: 2615 [2022-01-10 01:38:51,772 INFO L226 Difference]: Without dead ends: 1744 [2022-01-10 01:38:51,788 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 01:38:51,790 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 72 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:51,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-01-10 01:38:52,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1670. [2022-01-10 01:38:52,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1669 states have (on average 1.4140203714799282) internal successors, (2360), 1669 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states 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 01:38:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2360 transitions. [2022-01-10 01:38:52,874 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2360 transitions. Word has length 95 [2022-01-10 01:38:52,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:52,874 INFO L470 AbstractCegarLoop]: Abstraction has 1670 states and 2360 transitions. [2022-01-10 01:38:52,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 01:38:52,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2360 transitions. [2022-01-10 01:38:52,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:38:52,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:52,875 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] [2022-01-10 01:38:52,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 01:38:52,875 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1608306199, now seen corresponding path program 1 times [2022-01-10 01:38:52,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:52,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854104134] [2022-01-10 01:38:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:52,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:52,912 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 01:38:52,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:52,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854104134] [2022-01-10 01:38:52,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854104134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:52,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:52,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:38:52,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273104403] [2022-01-10 01:38:52,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:52,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:38:52,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:38:52,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:38:52,913 INFO L87 Difference]: Start difference. First operand 1670 states and 2360 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:55,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:55,047 INFO L93 Difference]: Finished difference Result 4718 states and 6670 transitions. [2022-01-10 01:38:55,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:38:55,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-01-10 01:38:55,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:55,056 INFO L225 Difference]: With dead ends: 4718 [2022-01-10 01:38:55,056 INFO L226 Difference]: Without dead ends: 3122 [2022-01-10 01:38:55,057 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 01:38:55,058 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 65 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:55,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:55,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2022-01-10 01:38:57,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2976. [2022-01-10 01:38:57,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 1.4023529411764706) internal successors, (4172), 2975 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states 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 01:38:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4172 transitions. [2022-01-10 01:38:57,052 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4172 transitions. Word has length 96 [2022-01-10 01:38:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:57,053 INFO L470 AbstractCegarLoop]: Abstraction has 2976 states and 4172 transitions. [2022-01-10 01:38:57,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:38:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4172 transitions. [2022-01-10 01:38:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 01:38:57,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:57,054 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] [2022-01-10 01:38:57,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 01:38:57,054 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash -916899152, now seen corresponding path program 1 times [2022-01-10 01:38:57,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:57,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351585125] [2022-01-10 01:38:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:57,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:38:57,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:57,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351585125] [2022-01-10 01:38:57,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351585125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:57,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:57,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:38:57,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616313623] [2022-01-10 01:38:57,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:57,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:38:57,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:57,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:38:57,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:38:57,130 INFO L87 Difference]: Start difference. First operand 2976 states and 4172 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 01:39:01,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:01,134 INFO L93 Difference]: Finished difference Result 8492 states and 11854 transitions. [2022-01-10 01:39:01,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:39:01,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 01:39:01,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:01,148 INFO L225 Difference]: With dead ends: 8492 [2022-01-10 01:39:01,148 INFO L226 Difference]: Without dead ends: 5590 [2022-01-10 01:39:01,150 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 01:39:01,150 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 55 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:01,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 333 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:39:01,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2022-01-10 01:39:04,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5300. [2022-01-10 01:39:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 5299 states have (on average 1.382902434421589) internal successors, (7328), 5299 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states 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 01:39:04,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 7328 transitions. [2022-01-10 01:39:04,778 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 7328 transitions. Word has length 97 [2022-01-10 01:39:04,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:04,779 INFO L470 AbstractCegarLoop]: Abstraction has 5300 states and 7328 transitions. [2022-01-10 01:39:04,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 01:39:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 7328 transitions. [2022-01-10 01:39:04,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:39:04,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:04,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:39:04,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 01:39:04,779 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:39:04,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:04,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2063595932, now seen corresponding path program 1 times [2022-01-10 01:39:04,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:04,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226552705] [2022-01-10 01:39:04,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:04,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:04,827 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 01:39:04,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:04,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226552705] [2022-01-10 01:39:04,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226552705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:04,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:04,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:39:04,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771104456] [2022-01-10 01:39:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:04,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:39:04,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:39:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:39:04,828 INFO L87 Difference]: Start difference. First operand 5300 states and 7328 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 01:39:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:11,689 INFO L93 Difference]: Finished difference Result 9356 states and 12848 transitions. [2022-01-10 01:39:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 01:39:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-01-10 01:39:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:11,703 INFO L225 Difference]: With dead ends: 9356 [2022-01-10 01:39:11,704 INFO L226 Difference]: Without dead ends: 9354 [2022-01-10 01:39:11,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:11,705 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 257 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:11,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 840 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:39:11,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9354 states. [2022-01-10 01:39:15,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9354 to 5492. [2022-01-10 01:39:15,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5491 states have (on average 1.3622291021671826) internal successors, (7480), 5491 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states 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 01:39:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 7480 transitions. [2022-01-10 01:39:15,852 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 7480 transitions. Word has length 98 [2022-01-10 01:39:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:15,852 INFO L470 AbstractCegarLoop]: Abstraction has 5492 states and 7480 transitions. [2022-01-10 01:39:15,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 01:39:15,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 7480 transitions. [2022-01-10 01:39:15,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:39:15,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:15,853 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] [2022-01-10 01:39:15,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 01:39:15,853 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:39:15,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash -777753176, now seen corresponding path program 1 times [2022-01-10 01:39:15,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:15,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041842397] [2022-01-10 01:39:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:15,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:15,901 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 01:39:15,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:15,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041842397] [2022-01-10 01:39:15,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041842397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:15,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:15,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:39:15,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376219929] [2022-01-10 01:39:15,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:15,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:39:15,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:15,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:39:15,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:39:15,905 INFO L87 Difference]: Start difference. First operand 5492 states and 7480 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 01:39:22,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:39:22,745 INFO L93 Difference]: Finished difference Result 10334 states and 14141 transitions. [2022-01-10 01:39:22,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:39:22,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-01-10 01:39:22,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:39:22,758 INFO L225 Difference]: With dead ends: 10334 [2022-01-10 01:39:22,758 INFO L226 Difference]: Without dead ends: 9124 [2022-01-10 01:39:22,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:39:22,762 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 643 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:39:22,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 740 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:39:22,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9124 states. [2022-01-10 01:39:27,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9124 to 6700. [2022-01-10 01:39:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6700 states, 6699 states have (on average 1.3625914315569487) internal successors, (9128), 6699 states have internal predecessors, (9128), 0 states have call successors, (0), 0 states 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 01:39:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 9128 transitions. [2022-01-10 01:39:27,812 INFO L78 Accepts]: Start accepts. Automaton has 6700 states and 9128 transitions. Word has length 98 [2022-01-10 01:39:27,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:39:27,813 INFO L470 AbstractCegarLoop]: Abstraction has 6700 states and 9128 transitions. [2022-01-10 01:39:27,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 01:39:27,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6700 states and 9128 transitions. [2022-01-10 01:39:27,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 01:39:27,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:39:27,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:39:27,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 01:39:27,813 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:39:27,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:39:27,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1173003609, now seen corresponding path program 1 times [2022-01-10 01:39:27,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:39:27,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128380989] [2022-01-10 01:39:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:39:27,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:39:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:39:27,855 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 01:39:27,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:39:27,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128380989] [2022-01-10 01:39:27,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128380989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:39:27,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:39:27,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:39:27,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262875782] [2022-01-10 01:39:27,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:39:27,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:39:27,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:39:27,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:39:27,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:39:27,857 INFO L87 Difference]: Start difference. First operand 6700 states and 9128 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)