/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/prodbin-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:44:55,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:44:55,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:44:55,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:44:55,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:44:55,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:44:55,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:44:55,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:44:55,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:44:55,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:44:55,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:44:55,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:44:55,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:44:55,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:44:55,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:44:55,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:44:55,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:44:55,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:44:55,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:44:55,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:44:55,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:44:55,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:44:55,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:44:55,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:44:55,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 02:44:55,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 02:44:55,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 02:44:55,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 02:44:55,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 02:44:55,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 02:44:55,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:44:55,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:44:55,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:44:55,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:44:55,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:44:55,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:44:55,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:44:55,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:44:55,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:44:55,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:44:55,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:44:55,287 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 02:44:55,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:44:55,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:44:55,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:44:55,316 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:44:55,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:44:55,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:44:55,318 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:44:55,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:44:55,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:44:55,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:44:55,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:44:55,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:44:55,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:44:55,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:44:55,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:44:55,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:44:55,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:44:55,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:44:55,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:44:55,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:44:55,322 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:44:55,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:44:55,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:44:55,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:44:55,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:44:55,323 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:44:55,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:44:55,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:44:55,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:44:55,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:44:55,590 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:44:55,590 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:44:55,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_valuebound1.c [2022-01-11 02:44:55,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c304f54/b191014b050140d683c9a3e7cd8411e7/FLAG282e37d88 [2022-01-11 02:44:56,038 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:44:56,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prodbin-ll_valuebound1.c [2022-01-11 02:44:56,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c304f54/b191014b050140d683c9a3e7cd8411e7/FLAG282e37d88 [2022-01-11 02:44:56,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8c304f54/b191014b050140d683c9a3e7cd8411e7 [2022-01-11 02:44:56,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:44:56,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:44:56,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:44:56,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:44:56,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:44:56,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2945b275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56, skipping insertion in model container [2022-01-11 02:44:56,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:44:56,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:44:56,265 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/prodbin-ll_valuebound1.c[537,550] [2022-01-11 02:44:56,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:44:56,284 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:44:56,294 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/prodbin-ll_valuebound1.c[537,550] [2022-01-11 02:44:56,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:44:56,324 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:44:56,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56 WrapperNode [2022-01-11 02:44:56,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:44:56,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:44:56,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:44:56,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:44:56,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,356 INFO L137 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 59 [2022-01-11 02:44:56,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:44:56,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:44:56,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:44:56,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:44:56,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:44:56,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:44:56,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:44:56,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:44:56,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:56,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:44:56,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:44:56,420 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 02:44:56,446 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 02:44:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:44:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:44:56,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:44:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:44:56,520 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:44:56,522 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:44:56,955 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:44:56,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:44:56,959 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 02:44:56,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:44:56 BoogieIcfgContainer [2022-01-11 02:44:56,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:44:56,962 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:44:56,962 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:44:56,963 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:44:56,965 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:44:56" (1/1) ... [2022-01-11 02:44:57,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:44:57 BasicIcfg [2022-01-11 02:44:57,048 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:44:57,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:44:57,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:44:57,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:44:57,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:44:56" (1/4) ... [2022-01-11 02:44:57,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8513fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:44:57, skipping insertion in model container [2022-01-11 02:44:57,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:44:56" (2/4) ... [2022-01-11 02:44:57,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8513fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:44:57, skipping insertion in model container [2022-01-11 02:44:57,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:44:56" (3/4) ... [2022-01-11 02:44:57,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8513fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:44:57, skipping insertion in model container [2022-01-11 02:44:57,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:44:57" (4/4) ... [2022-01-11 02:44:57,055 INFO L111 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound1.cTransformedIcfg [2022-01-11 02:44:57,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:44:57,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 02:44:57,103 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:44:57,113 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 02:44:57,113 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 02:44:57,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 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 02:44:57,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:44:57,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:44:57,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:44:57,133 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:44:57,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:44:57,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1695820884, now seen corresponding path program 1 times [2022-01-11 02:44:57,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:44:57,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941436465] [2022-01-11 02:44:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:44:57,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:44:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:44:57,339 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 02:44:57,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:44:57,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941436465] [2022-01-11 02:44:57,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941436465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:44:57,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:44:57,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:44:57,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840705281] [2022-01-11 02:44:57,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:44:57,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:44:57,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:44:57,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:44:57,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:44:57,377 INFO L87 Difference]: Start difference. First operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 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 02:44:57,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:44:57,390 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2022-01-11 02:44:57,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:44:57,393 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 02:44:57,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:44:57,399 INFO L225 Difference]: With dead ends: 45 [2022-01-11 02:44:57,399 INFO L226 Difference]: Without dead ends: 20 [2022-01-11 02:44:57,401 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 02:44:57,404 INFO L933 BasicCegarLoop]: 25 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, 25 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 02:44:57,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:44:57,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-11 02:44:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-11 02:44:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 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 02:44:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-01-11 02:44:57,435 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 11 [2022-01-11 02:44:57,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:44:57,436 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-01-11 02:44:57,436 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 02:44:57,437 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-01-11 02:44:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-11 02:44:57,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:44:57,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:44:57,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:44:57,438 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:44:57,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:44:57,440 INFO L85 PathProgramCache]: Analyzing trace with hash -110710058, now seen corresponding path program 1 times [2022-01-11 02:44:57,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:44:57,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655774972] [2022-01-11 02:44:57,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:44:57,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:44:57,513 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:44:57,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286469434] [2022-01-11 02:44:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:44:57,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:44:57,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:44:57,517 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 02:44:57,518 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 02:44:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:44:57,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-11 02:44:57,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:44:58,655 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 02:44:58,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:44:58,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:44:58,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655774972] [2022-01-11 02:44:58,656 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:44:58,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286469434] [2022-01-11 02:44:58,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286469434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:44:58,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:44:58,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 02:44:58,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553946985] [2022-01-11 02:44:58,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:44:58,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 02:44:58,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:44:58,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 02:44:58,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 02:44:58,664 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 02:44:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:44:59,104 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-01-11 02:44:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 02:44:59,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 02:44:59,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:44:59,105 INFO L225 Difference]: With dead ends: 37 [2022-01-11 02:44:59,105 INFO L226 Difference]: Without dead ends: 25 [2022-01-11 02:44:59,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2022-01-11 02:44:59,107 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 75 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:44:59,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 26 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:44:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-11 02:44:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-01-11 02:44:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 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 02:44:59,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-01-11 02:44:59,113 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2022-01-11 02:44:59,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:44:59,113 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-01-11 02:44:59,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.1) internal successors, (11), 10 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 02:44:59,113 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-01-11 02:44:59,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 02:44:59,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:44:59,114 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:44:59,119 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 02:44:59,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:44:59,315 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:44:59,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:44:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1532008981, now seen corresponding path program 1 times [2022-01-11 02:44:59,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:44:59,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871526503] [2022-01-11 02:44:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:44:59,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:44:59,353 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:44:59,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [161695252] [2022-01-11 02:44:59,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:44:59,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:44:59,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:44:59,357 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 02:44:59,395 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 02:44:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:44:59,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-11 02:44:59,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:46:14,480 WARN L228 SmtUtils]: Spent 21.06s on a formula simplification. DAG size of input: 56 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)