/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:57:49,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:57:49,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:57:49,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:57:49,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:57:49,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:57:49,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:57:49,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:57:49,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:57:49,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:57:49,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:57:49,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:57:49,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:57:49,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:57:49,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:57:49,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:57:49,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:57:49,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:57:49,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:57:49,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:57:49,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:57:49,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:57:49,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:57:49,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:57:49,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 14:57:49,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 14:57:49,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 14:57:49,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 14:57:49,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 14:57:49,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 14:57:49,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 14:57:49,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 14:57:49,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 14:57:49,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 14:57:49,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 14:57:49,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 14:57:49,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 14:57:49,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 14:57:49,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:57:49,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:57:49,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:57:49,113 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 14:57:49,140 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:57:49,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:57:49,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:57:49,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:57:49,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:57:49,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:57:49,142 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:57:49,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:57:49,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:57:49,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:57:49,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:57:49,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:57:49,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:57:49,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:57:49,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:57:49,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:57:49,146 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:57:49,146 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:57:49,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:57:49,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:57:49,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:57:49,344 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:57:49,344 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:57:49,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound10.c [2022-01-10 14:57:49,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cc9b82c/c5e3c7a860d54124bfd0c5c0cae9e2f6/FLAGf3462b1ba [2022-01-10 14:57:49,725 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:57:49,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/hard-ll_valuebound10.c [2022-01-10 14:57:49,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cc9b82c/c5e3c7a860d54124bfd0c5c0cae9e2f6/FLAGf3462b1ba [2022-01-10 14:57:50,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72cc9b82c/c5e3c7a860d54124bfd0c5c0cae9e2f6 [2022-01-10 14:57:50,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:57:50,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:57:50,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:57:50,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:57:50,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:57:50,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a4d70c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50, skipping insertion in model container [2022-01-10 14:57:50,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:57:50,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:57:50,296 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_valuebound10.c[538,551] [2022-01-10 14:57:50,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:57:50,322 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:57:50,338 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_valuebound10.c[538,551] [2022-01-10 14:57:50,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:57:50,355 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:57:50,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50 WrapperNode [2022-01-10 14:57:50,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:57:50,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:57:50,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:57:50,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:57:50,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,381 INFO L137 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 99 [2022-01-10 14:57:50,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:57:50,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:57:50,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:57:50,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:57:50,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:57:50,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:57:50,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:57:50,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:57:50,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:50,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:57:50,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:57:50,426 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 14:57:50,431 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 14:57:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:57:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:57:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:57:50,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:57:50,493 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:57:50,494 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:57:50,971 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:57:50,976 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:57:50,976 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 14:57:50,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:57:50 BoogieIcfgContainer [2022-01-10 14:57:50,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:57:50,978 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:57:50,978 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:57:50,979 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:57:50,984 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:57:50" (1/1) ... [2022-01-10 14:57:51,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:57:51 BasicIcfg [2022-01-10 14:57:51,061 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:57:51,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:57:51,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:57:51,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:57:51,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:57:50" (1/4) ... [2022-01-10 14:57:51,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e3715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:57:51, skipping insertion in model container [2022-01-10 14:57:51,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:57:50" (2/4) ... [2022-01-10 14:57:51,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e3715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:57:51, skipping insertion in model container [2022-01-10 14:57:51,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:57:50" (3/4) ... [2022-01-10 14:57:51,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e3715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:57:51, skipping insertion in model container [2022-01-10 14:57:51,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:57:51" (4/4) ... [2022-01-10 14:57:51,066 INFO L111 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound10.cTransformedIcfg [2022-01-10 14:57:51,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:57:51,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-01-10 14:57:51,116 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:57:51,121 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 14:57:51,121 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-10 14:57:51,134 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) [2022-01-10 14:57:51,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 14:57:51,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:57:51,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:57:51,139 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)] === [2022-01-10 14:57:51,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:57:51,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1753801254, now seen corresponding path program 1 times [2022-01-10 14:57:51,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:57:51,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005692125] [2022-01-10 14:57:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:51,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:57:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:57:51,285 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 14:57:51,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:57:51,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005692125] [2022-01-10 14:57:51,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005692125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:57:51,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:57:51,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:57:51,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581364245] [2022-01-10 14:57:51,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:57:51,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 14:57:51,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:57:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 14:57:51,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:57:51,320 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) [2022-01-10 14:57:51,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:57:51,335 INFO L93 Difference]: Finished difference Result 87 states and 118 transitions. [2022-01-10 14:57:51,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 14:57:51,336 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 [2022-01-10 14:57:51,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:57:51,341 INFO L225 Difference]: With dead ends: 87 [2022-01-10 14:57:51,341 INFO L226 Difference]: Without dead ends: 41 [2022-01-10 14:57:51,344 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 [2022-01-10 14:57:51,347 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 [2022-01-10 14:57:51,348 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] [2022-01-10 14:57:51,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-01-10 14:57:51,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-01-10 14:57:51,374 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) [2022-01-10 14:57:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-01-10 14:57:51,375 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 11 [2022-01-10 14:57:51,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:57:51,376 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-01-10 14:57:51,376 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) [2022-01-10 14:57:51,377 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-01-10 14:57:51,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 14:57:51,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:57:51,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:57:51,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:57:51,379 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)] === [2022-01-10 14:57:51,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:57:51,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1622138781, now seen corresponding path program 1 times [2022-01-10 14:57:51,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:57:51,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650664058] [2022-01-10 14:57:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:51,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:57:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:57:51,493 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 14:57:51,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:57:51,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650664058] [2022-01-10 14:57:51,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650664058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:57:51,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:57:51,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:57:51,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377909764] [2022-01-10 14:57:51,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:57:51,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:57:51,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:57:51,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:57:51,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:57:51,496 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) [2022-01-10 14:57:51,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:57:51,577 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2022-01-10 14:57:51,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 14:57:51,577 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 [2022-01-10 14:57:51,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:57:51,578 INFO L225 Difference]: With dead ends: 61 [2022-01-10 14:57:51,578 INFO L226 Difference]: Without dead ends: 59 [2022-01-10 14:57:51,579 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 [2022-01-10 14:57:51,580 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 [2022-01-10 14:57:51,580 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] [2022-01-10 14:57:51,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-01-10 14:57:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2022-01-10 14:57:51,586 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) [2022-01-10 14:57:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-01-10 14:57:51,589 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2022-01-10 14:57:51,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:57:51,590 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-01-10 14:57:51,590 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) [2022-01-10 14:57:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-01-10 14:57:51,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 14:57:51,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:57:51,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:57:51,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:57:51,591 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)] === [2022-01-10 14:57:51,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:57:51,591 INFO L85 PathProgramCache]: Analyzing trace with hash -197722619, now seen corresponding path program 1 times [2022-01-10 14:57:51,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:57:51,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565792870] [2022-01-10 14:57:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:51,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:57:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:57:51,646 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 14:57:51,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:57:51,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565792870] [2022-01-10 14:57:51,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565792870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:57:51,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:57:51,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:57:51,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379395908] [2022-01-10 14:57:51,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:57:51,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:57:51,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:57:51,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:57:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:57:51,648 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) [2022-01-10 14:57:51,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:57:51,764 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2022-01-10 14:57:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 14:57:51,765 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 [2022-01-10 14:57:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:57:51,766 INFO L225 Difference]: With dead ends: 59 [2022-01-10 14:57:51,766 INFO L226 Difference]: Without dead ends: 57 [2022-01-10 14:57:51,767 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 [2022-01-10 14:57:51,768 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 [2022-01-10 14:57:51,768 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] [2022-01-10 14:57:51,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-10 14:57:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 37. [2022-01-10 14:57:51,772 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) [2022-01-10 14:57:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-01-10 14:57:51,773 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 13 [2022-01-10 14:57:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:57:51,773 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-01-10 14:57:51,773 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) [2022-01-10 14:57:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-01-10 14:57:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 14:57:51,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:57:51,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:57:51,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 14:57:51,774 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)] === [2022-01-10 14:57:51,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:57:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1032838067, now seen corresponding path program 1 times [2022-01-10 14:57:51,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:57:51,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285375706] [2022-01-10 14:57:51,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:51,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:57:51,806 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:57:51,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94942179] [2022-01-10 14:57:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:51,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:57:51,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:57:51,823 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) [2022-01-10 14:57:51,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 14:57:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:57:51,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 14:57:51,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:57:52,338 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 14:57:52,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 14:57:52,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:57:52,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285375706] [2022-01-10 14:57:52,340 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 14:57:52,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94942179] [2022-01-10 14:57:52,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94942179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:57:52,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:57:52,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 14:57:52,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725953581] [2022-01-10 14:57:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:57:52,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 14:57:52,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:57:52,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 14:57:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-10 14:57:52,346 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) [2022-01-10 14:57:52,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:57:52,611 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2022-01-10 14:57:52,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 14:57:52,612 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 [2022-01-10 14:57:52,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:57:52,612 INFO L225 Difference]: With dead ends: 80 [2022-01-10 14:57:52,612 INFO L226 Difference]: Without dead ends: 57 [2022-01-10 14:57:52,613 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 [2022-01-10 14:57:52,613 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 182 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:57:52,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 60 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:57:52,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-10 14:57:52,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2022-01-10 14:57:52,620 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) [2022-01-10 14:57:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-01-10 14:57:52,620 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 15 [2022-01-10 14:57:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:57:52,620 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-01-10 14:57:52,621 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) [2022-01-10 14:57:52,621 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-01-10 14:57:52,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 14:57:52,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:57:52,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:57:52,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 14:57:52,838 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 [2022-01-10 14:57:52,838 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)] === [2022-01-10 14:57:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:57:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash 204111243, now seen corresponding path program 1 times [2022-01-10 14:57:52,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:57:52,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503317309] [2022-01-10 14:57:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:52,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:57:52,865 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:57:52,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795942208] [2022-01-10 14:57:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:52,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:57:52,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:57:52,867 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) [2022-01-10 14:57:52,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 14:57:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:57:52,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-10 14:57:52,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:57:53,506 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 14:57:53,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 14:57:53,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:57:53,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503317309] [2022-01-10 14:57:53,507 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 14:57:53,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795942208] [2022-01-10 14:57:53,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795942208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:57:53,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:57:53,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 14:57:53,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517445298] [2022-01-10 14:57:53,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:57:53,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 14:57:53,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:57:53,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 14:57:53,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-10 14:57:53,509 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) [2022-01-10 14:57:53,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:57:53,968 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2022-01-10 14:57:53,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 14:57:53,969 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 [2022-01-10 14:57:53,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:57:53,969 INFO L225 Difference]: With dead ends: 57 [2022-01-10 14:57:53,969 INFO L226 Difference]: Without dead ends: 45 [2022-01-10 14:57:53,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=213, Unknown=0, NotChecked=0, Total=342 [2022-01-10 14:57:53,970 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 246 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 14:57:53,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 70 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 14:57:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-10 14:57:53,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-01-10 14:57:53,975 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) [2022-01-10 14:57:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-01-10 14:57:53,975 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 19 [2022-01-10 14:57:53,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:57:53,975 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-01-10 14:57:53,975 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) [2022-01-10 14:57:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-01-10 14:57:53,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 14:57:53,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:57:53,976 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:57:53,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 14:57:54,187 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 [2022-01-10 14:57:54,188 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)] === [2022-01-10 14:57:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:57:54,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1774741771, now seen corresponding path program 1 times [2022-01-10 14:57:54,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:57:54,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454377505] [2022-01-10 14:57:54,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:54,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:57:54,201 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:57:54,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640629961] [2022-01-10 14:57:54,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:57:54,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:57:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:57:54,215 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) [2022-01-10 14:57:54,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 14:57:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:57:54,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-10 14:57:54,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:57:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:57:54,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:57:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:57:54,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:57:54,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454377505] [2022-01-10 14:57:54,789 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 14:57:54,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640629961] [2022-01-10 14:57:54,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640629961] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:57:54,790 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 14:57:54,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2022-01-10 14:57:54,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121883571] [2022-01-10 14:57:54,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 14:57:54,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 14:57:54,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:57:54,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 14:57:54,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-10 14:57:54,791 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) [2022-01-10 14:57:57,179 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 [] [2022-01-10 14:57:59,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 14:58:01,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 14:58:01,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:58:01,544 INFO L93 Difference]: Finished difference Result 103 states and 115 transitions. [2022-01-10 14:58:01,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 14:58:01,545 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 [2022-01-10 14:58:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:58:01,546 INFO L225 Difference]: With dead ends: 103 [2022-01-10 14:58:01,546 INFO L226 Difference]: Without dead ends: 80 [2022-01-10 14:58:01,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2022-01-10 14:58:01,547 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 249 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 107 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-01-10 14:58:01,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 83 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 88 Invalid, 3 Unknown, 0 Unchecked, 6.4s Time] [2022-01-10 14:58:01,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-01-10 14:58:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2022-01-10 14:58:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 71 states have internal predecessors, (80), 0 states have call successors, (0), 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 14:58:01,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2022-01-10 14:58:01,554 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 23 [2022-01-10 14:58:01,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:58:01,554 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2022-01-10 14:58:01,554 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) [2022-01-10 14:58:01,554 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2022-01-10 14:58:01,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 14:58:01,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:58:01,555 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] [2022-01-10 14:58:01,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 14:58:01,771 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 [2022-01-10 14:58:01,772 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)] === [2022-01-10 14:58:01,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:58:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash -198681549, now seen corresponding path program 1 times [2022-01-10 14:58:01,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:58:01,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335889086] [2022-01-10 14:58:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:58:01,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:58:01,781 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:58:01,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363746097] [2022-01-10 14:58:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:58:01,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:58:01,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:58:01,791 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) [2022-01-10 14:58:01,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 14:58:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:58:01,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-10 14:58:01,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:58:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 14:58:02,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 14:58:02,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:58:02,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335889086] [2022-01-10 14:58:02,433 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 14:58:02,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363746097] [2022-01-10 14:58:02,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363746097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:58:02,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:58:02,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 14:58:02,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358761668] [2022-01-10 14:58:02,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:58:02,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 14:58:02,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:58:02,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 14:58:02,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:58:02,435 INFO L87 Difference]: Start difference. First operand 72 states and 80 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) [2022-01-10 14:58:02,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:58:02,680 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2022-01-10 14:58:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 14:58:02,681 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 [2022-01-10 14:58:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:58:02,681 INFO L225 Difference]: With dead ends: 99 [2022-01-10 14:58:02,681 INFO L226 Difference]: Without dead ends: 87 [2022-01-10 14:58:02,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2022-01-10 14:58:02,682 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 143 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:58:02,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 49 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:58:02,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-01-10 14:58:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2022-01-10 14:58:02,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 77 states have (on average 1.1428571428571428) internal successors, (88), 80 states have internal predecessors, (88), 0 states have call successors, (0), 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 14:58:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2022-01-10 14:58:02,689 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 27 [2022-01-10 14:58:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:58:02,689 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2022-01-10 14:58:02,689 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) [2022-01-10 14:58:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2022-01-10 14:58:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 14:58:02,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:58:02,689 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] [2022-01-10 14:58:02,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-10 14:58:02,910 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 [2022-01-10 14:58:02,910 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)] === [2022-01-10 14:58:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:58:02,911 INFO L85 PathProgramCache]: Analyzing trace with hash 245684806, now seen corresponding path program 1 times [2022-01-10 14:58:02,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:58:02,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108854258] [2022-01-10 14:58:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:58:02,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:58:02,921 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:58:02,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805260154] [2022-01-10 14:58:02,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:58:02,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:58:02,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:58:02,939 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) [2022-01-10 14:58:02,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-10 14:58:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:58:03,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 51 conjunts are in the unsatisfiable core [2022-01-10 14:58:03,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:58:50,612 WARN L838 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| 10) (<= (+ (* 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| (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int| 9223372036854775808)))) (= |c_ULTIMATE.start_ULTIMATE.start_main_~q~0#1Int| 0) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int|) (<= |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| 10) (<= 1 |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int|) (= |c_ULTIMATE.start_ULTIMATE.start_main_~p~0#1Int| 1) (let ((.cse1 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~B~0#1Int| 2) 18446744073709551616))) (let ((.cse0 (= (mod (div .cse1 9223372036854775808) 2) 1))) (or .cse0 (and (= |c_ULTIMATE.start_ULTIMATE.start_main_~d~0#1Int| (div .cse1 2)) (not .cse0))))) (= |c_ULTIMATE.start_ULTIMATE.start_main_~A~0#1Int| |c_ULTIMATE.start_ULTIMATE.start_main_~r~0#1Int|)) is different from false [2022-01-10 14:58:55,784 WARN L228 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 11 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)