/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:35:39,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:35:39,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:35:39,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:35:39,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:35:39,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:35:39,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:35:39,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:35:39,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:35:39,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:35:39,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:35:39,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:35:39,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:35:39,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:35:39,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:35:39,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:35:39,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:35:39,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:35:39,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:35:39,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:35:39,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:35:39,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:35:39,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:35:39,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:35:39,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 02:35:39,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:35:39,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:35:39,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:35:39,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:35:39,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:35:39,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:35:39,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:35:39,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:35:39,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:35:39,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:35:39,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:35:39,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:35:39,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:35:39,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:35:39,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:35:39,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:35:39,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:35:39,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:35:39,943 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:35:39,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:35:39,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:35:39,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:35:39,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:35:39,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:35:39,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:35:39,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:35:39,944 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:35:39,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:35:39,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:35:39,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:35:39,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:35:39,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:35:39,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:35:39,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:35:39,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:35:39,946 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:35:39,946 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:35:40,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:35:40,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:35:40,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:35:40,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:35:40,155 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:35:40,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound50.c [2022-01-11 02:35:40,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd09c259b/016298fbfc704bc08ebd9b748ba50fde/FLAG61d54c363 [2022-01-11 02:35:40,501 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:35:40,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound50.c [2022-01-11 02:35:40,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd09c259b/016298fbfc704bc08ebd9b748ba50fde/FLAG61d54c363 [2022-01-11 02:35:40,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd09c259b/016298fbfc704bc08ebd9b748ba50fde [2022-01-11 02:35:40,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:35:40,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:35:40,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:35:40,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:35:40,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:35:40,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:35:40" (1/1) ... [2022-01-11 02:35:40,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70cd22c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:40, skipping insertion in model container [2022-01-11 02:35:40,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:35:40" (1/1) ... [2022-01-11 02:35:40,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:35:40,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:35:41,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound50.c[538,551] [2022-01-11 02:35:41,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:35:41,130 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:35:41,146 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound50.c[538,551] [2022-01-11 02:35:41,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:35:41,160 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:35:41,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41 WrapperNode [2022-01-11 02:35:41,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:35:41,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:35:41,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:35:41,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:35:41,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,182 INFO L137 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 99 [2022-01-11 02:35:41,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:35:41,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:35:41,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:35:41,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:35:41,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:35:41,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:35:41,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:35:41,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:35:41,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:41,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:35:41,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:35:41,244 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) [2022-01-11 02:35:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:35:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:35:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:35:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:35:41,270 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 [2022-01-11 02:35:41,319 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:35:41,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:35:41,973 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:35:41,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:35:41,978 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 02:35:41,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:35:41 BoogieIcfgContainer [2022-01-11 02:35:41,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:35:41,979 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:35:41,980 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:35:41,981 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:35:41,983 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:35:41" (1/1) ... [2022-01-11 02:35:42,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:35:42 BasicIcfg [2022-01-11 02:35:42,042 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:35:42,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:35:42,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:35:42,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:35:42,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:35:40" (1/4) ... [2022-01-11 02:35:42,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541ac42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:35:42, skipping insertion in model container [2022-01-11 02:35:42,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:35:41" (2/4) ... [2022-01-11 02:35:42,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541ac42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:35:42, skipping insertion in model container [2022-01-11 02:35:42,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:35:41" (3/4) ... [2022-01-11 02:35:42,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541ac42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:35:42, skipping insertion in model container [2022-01-11 02:35:42,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:35:42" (4/4) ... [2022-01-11 02:35:42,056 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound50.cTransformedIcfg [2022-01-11 02:35:42,060 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:35:42,060 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-01-11 02:35:42,091 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:35:42,096 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 [2022-01-11 02:35:42,096 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-11 02:35:42,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 44 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) [2022-01-11 02:35:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:35:42,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:35:42,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:35:42,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:35:42,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:35:42,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1753801254, now seen corresponding path program 1 times [2022-01-11 02:35:42,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:35:42,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767985584] [2022-01-11 02:35:42,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:42,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:35:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:35:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:35:42,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:35:42,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767985584] [2022-01-11 02:35:42,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767985584] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:35:42,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:35:42,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:35:42,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616054067] [2022-01-11 02:35:42,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:35:42,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:35:42,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:35:42,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:35:42,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:35:42,299 INFO L87 Difference]: Start difference. First operand has 45 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 44 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:35:42,316 INFO L93 Difference]: Finished difference Result 87 states and 118 transitions. [2022-01-11 02:35:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:35:42,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-01-11 02:35:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:35:42,324 INFO L225 Difference]: With dead ends: 87 [2022-01-11 02:35:42,324 INFO L226 Difference]: Without dead ends: 41 [2022-01-11 02:35:42,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:35:42,331 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:35:42,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:35:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-01-11 02:35:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-01-11 02:35:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-01-11 02:35:42,362 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 11 [2022-01-11 02:35:42,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:35:42,363 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-01-11 02:35:42,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-01-11 02:35:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:35:42,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:35:42,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:35:42,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:35:42,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:35:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:35:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1622138781, now seen corresponding path program 1 times [2022-01-11 02:35:42,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:35:42,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467370838] [2022-01-11 02:35:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:42,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:35:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:35:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:35:42,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:35:42,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467370838] [2022-01-11 02:35:42,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467370838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:35:42,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:35:42,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:35:42,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665598914] [2022-01-11 02:35:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:35:42,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:35:42,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:35:42,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:35:42,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:35:42,494 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:35:42,607 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2022-01-11 02:35:42,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:35:42,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-01-11 02:35:42,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:35:42,609 INFO L225 Difference]: With dead ends: 61 [2022-01-11 02:35:42,609 INFO L226 Difference]: Without dead ends: 59 [2022-01-11 02:35:42,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:35:42,614 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:35:42,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 73 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:35:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-01-11 02:35:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2022-01-11 02:35:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-01-11 02:35:42,627 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2022-01-11 02:35:42,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:35:42,628 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-01-11 02:35:42,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,628 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-01-11 02:35:42,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-11 02:35:42,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:35:42,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:35:42,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:35:42,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:35:42,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:35:42,637 INFO L85 PathProgramCache]: Analyzing trace with hash -197722619, now seen corresponding path program 1 times [2022-01-11 02:35:42,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:35:42,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300329889] [2022-01-11 02:35:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:42,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:35:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:35:42,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:35:42,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:35:42,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300329889] [2022-01-11 02:35:42,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300329889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:35:42,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:35:42,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 02:35:42,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289726612] [2022-01-11 02:35:42,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:35:42,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 02:35:42,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:35:42,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 02:35:42,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 02:35:42,733 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:35:42,884 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2022-01-11 02:35:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 02:35:42,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-01-11 02:35:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:35:42,886 INFO L225 Difference]: With dead ends: 59 [2022-01-11 02:35:42,886 INFO L226 Difference]: Without dead ends: 57 [2022-01-11 02:35:42,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:35:42,887 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 38 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:35:42,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 67 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:35:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-11 02:35:42,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 37. [2022-01-11 02:35:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-01-11 02:35:42,895 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 13 [2022-01-11 02:35:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:35:42,895 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-01-11 02:35:42,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-01-11 02:35:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 02:35:42,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:35:42,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:35:42,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 02:35:42,897 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:35:42,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:35:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1032838067, now seen corresponding path program 1 times [2022-01-11 02:35:42,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:35:42,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140526886] [2022-01-11 02:35:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:42,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:35:42,925 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:35:42,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069453504] [2022-01-11 02:35:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:42,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:35:42,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:35:42,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:35:42,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:35:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:35:43,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-11 02:35:43,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:35:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:35:43,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:35:43,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:35:43,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140526886] [2022-01-11 02:35:43,437 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:35:43,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069453504] [2022-01-11 02:35:43,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069453504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:35:43,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:35:43,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 02:35:43,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261171745] [2022-01-11 02:35:43,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:35:43,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 02:35:43,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:35:43,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 02:35:43,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-11 02:35:43,439 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:45,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 02:35:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:35:45,790 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2022-01-11 02:35:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 02:35:45,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-01-11 02:35:45,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:35:45,791 INFO L225 Difference]: With dead ends: 80 [2022-01-11 02:35:45,791 INFO L226 Difference]: Without dead ends: 57 [2022-01-11 02:35:45,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-01-11 02:35:45,792 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 182 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-11 02:35:45,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 60 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-11 02:35:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-11 02:35:45,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2022-01-11 02:35:45,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.1875) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-01-11 02:35:45,798 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 15 [2022-01-11 02:35:45,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:35:45,798 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-01-11 02:35:45,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:45,798 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-01-11 02:35:45,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 02:35:45,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:35:45,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:35:45,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-11 02:35:46,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:35:46,016 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:35:46,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:35:46,017 INFO L85 PathProgramCache]: Analyzing trace with hash 204111243, now seen corresponding path program 1 times [2022-01-11 02:35:46,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:35:46,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517392422] [2022-01-11 02:35:46,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:46,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:35:46,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:35:46,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334083907] [2022-01-11 02:35:46,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:46,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:35:46,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:35:46,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:35:46,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:35:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:35:46,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-11 02:35:46,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:35:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:35:46,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:35:46,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:35:46,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517392422] [2022-01-11 02:35:46,779 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:35:46,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334083907] [2022-01-11 02:35:46,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334083907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:35:46,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:35:46,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-11 02:35:46,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828913475] [2022-01-11 02:35:46,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:35:46,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-11 02:35:46,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:35:46,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-11 02:35:46,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-11 02:35:46,786 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:49,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 02:35:51,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:35:51,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:35:51,106 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2022-01-11 02:35:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 02:35:51,106 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-01-11 02:35:51,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:35:51,107 INFO L225 Difference]: With dead ends: 57 [2022-01-11 02:35:51,107 INFO L226 Difference]: Without dead ends: 45 [2022-01-11 02:35:51,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=213, Unknown=0, NotChecked=0, Total=342 [2022-01-11 02:35:51,108 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 246 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 93 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:35:51,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 70 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-01-11 02:35:51,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-11 02:35:51,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-01-11 02:35:51,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.175) internal successors, (47), 44 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-01-11 02:35:51,112 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 19 [2022-01-11 02:35:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:35:51,112 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-01-11 02:35:51,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-01-11 02:35:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 02:35:51,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:35:51,112 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:35:51,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-11 02:35:51,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:35:51,322 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:35:51,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:35:51,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1774741771, now seen corresponding path program 1 times [2022-01-11 02:35:51,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:35:51,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781941384] [2022-01-11 02:35:51,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:51,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:35:51,331 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:35:51,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079286650] [2022-01-11 02:35:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:35:51,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:35:51,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:35:51,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:35:51,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 02:35:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:35:51,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-11 02:35:51,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:35:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:35:51,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:35:51,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:35:51,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:35:51,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781941384] [2022-01-11 02:35:51,814 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:35:51,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079286650] [2022-01-11 02:35:51,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079286650] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:35:51,814 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:35:51,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2022-01-11 02:35:51,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160388999] [2022-01-11 02:35:51,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:35:51,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-11 02:35:51,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:35:51,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-11 02:35:51,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-11 02:35:51,815 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:35:54,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:35:56,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 02:35:58,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:36:01,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:36:03,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:36:06,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:36:08,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-11 02:36:08,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:36:08,208 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2022-01-11 02:36:08,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-11 02:36:08,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 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 23 [2022-01-11 02:36:08,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:36:08,209 INFO L225 Difference]: With dead ends: 104 [2022-01-11 02:36:08,209 INFO L226 Difference]: Without dead ends: 90 [2022-01-11 02:36:08,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=161, Invalid=301, Unknown=0, NotChecked=0, Total=462 [2022-01-11 02:36:08,210 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 221 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 92 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-01-11 02:36:08,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 102 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 99 Invalid, 7 Unknown, 0 Unchecked, 15.8s Time] [2022-01-11 02:36:08,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-01-11 02:36:08,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 65. [2022-01-11 02:36:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-01-11 02:36:08,218 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 23 [2022-01-11 02:36:08,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:36:08,218 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-01-11 02:36:08,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:08,218 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-01-11 02:36:08,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-11 02:36:08,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:36:08,218 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:36:08,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-11 02:36:08,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:36:08,428 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:36:08,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:36:08,429 INFO L85 PathProgramCache]: Analyzing trace with hash -198681549, now seen corresponding path program 1 times [2022-01-11 02:36:08,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:36:08,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967427568] [2022-01-11 02:36:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:08,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:36:08,440 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:36:08,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164088337] [2022-01-11 02:36:08,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:08,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:36:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:36:08,451 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:36:08,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-11 02:36:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:36:08,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-11 02:36:08,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:36:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 02:36:09,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:36:09,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:36:09,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967427568] [2022-01-11 02:36:09,146 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:36:09,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164088337] [2022-01-11 02:36:09,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164088337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:36:09,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:36:09,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 02:36:09,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421468159] [2022-01-11 02:36:09,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:36:09,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 02:36:09,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:36:09,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 02:36:09,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 02:36:09,147 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:09,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:36:09,436 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2022-01-11 02:36:09,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 02:36:09,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 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 27 [2022-01-11 02:36:09,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:36:09,437 INFO L225 Difference]: With dead ends: 84 [2022-01-11 02:36:09,437 INFO L226 Difference]: Without dead ends: 78 [2022-01-11 02:36:09,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2022-01-11 02:36:09,438 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 209 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:36:09,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 48 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:36:09,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-01-11 02:36:09,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2022-01-11 02:36:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 57 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-01-11 02:36:09,443 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 27 [2022-01-11 02:36:09,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:36:09,443 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-01-11 02:36:09,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:36:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-01-11 02:36:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 02:36:09,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:36:09,444 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:36:09,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-11 02:36:09,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:36:09,646 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-11 02:36:09,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:36:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash 245684806, now seen corresponding path program 1 times [2022-01-11 02:36:09,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:36:09,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915983415] [2022-01-11 02:36:09,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:09,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:36:09,656 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:36:09,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010106922] [2022-01-11 02:36:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:36:09,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:36:09,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:36:09,658 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:36:09,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-11 02:36:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:36:09,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-11 02:36:09,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:36:53,743 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| 2))) (let ((.cse0 (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| 9223372036854775808))) (.cse1 (mod .cse2 18446744073709551616))) (and (<= |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| 50) (<= (+ (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| 9223372036854775808)) |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|) (+ |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| .cse0)) (= |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| 50) (< (+ .cse1 .cse0) (+ (* (mod .cse2 9223372036854775808) 2) |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|)) (= |c_ULTIMATE.start_ULTIMATE.start_main_~p~0#1Int| 1) (let ((.cse3 (= (mod (div .cse1 9223372036854775808) 2) 1))) (or .cse3 (and (= |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int| (div .cse1 2)) (not .cse3)))) (= |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|)))) is different from false