/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/loops-crafted-1/sum_natnum.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:32:43,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:32:43,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:32:43,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:32:43,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:32:43,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:32:43,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:32:43,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:32:43,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:32:43,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:32:43,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:32:43,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:32:43,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:32:43,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:32:43,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:32:43,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:32:43,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:32:43,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:32:43,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:32:43,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:32:43,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:32:43,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:32:43,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:32:43,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:32:43,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 14:32:43,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 14:32:43,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 14:32:43,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 14:32:43,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 14:32:43,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 14:32:43,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 14:32:43,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 14:32:43,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 14:32:43,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 14:32:43,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 14:32:43,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 14:32:43,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 14:32:43,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 14:32:43,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:32:43,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:32:43,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:32:43,350 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 14:32:43,375 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:32:43,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:32:43,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:32:43,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:32:43,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:32:43,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:32:43,377 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:32:43,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:32:43,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:32:43,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:32:43,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:32:43,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:32:43,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:32:43,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:32:43,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:32:43,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:32:43,381 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:32:43,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:32:43,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:32:43,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:32:43,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:32:43,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:32:43,558 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:32:43,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sum_natnum.c [2022-01-10 14:32:43,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e8e5629/dc564d9f95134777b14840e58198258c/FLAG836e12c98 [2022-01-10 14:32:43,936 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:32:43,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sum_natnum.c [2022-01-10 14:32:43,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e8e5629/dc564d9f95134777b14840e58198258c/FLAG836e12c98 [2022-01-10 14:32:44,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e8e5629/dc564d9f95134777b14840e58198258c [2022-01-10 14:32:44,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:32:44,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:32:44,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:32:44,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:32:44,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:32:44,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1061e38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44, skipping insertion in model container [2022-01-10 14:32:44,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:32:44,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:32:44,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sum_natnum.c[458,471] [2022-01-10 14:32:44,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:32:44,511 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:32:44,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sum_natnum.c[458,471] [2022-01-10 14:32:44,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:32:44,527 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:32:44,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44 WrapperNode [2022-01-10 14:32:44,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:32:44,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:32:44,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:32:44,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:32:44,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,548 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-01-10 14:32:44,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:32:44,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:32:44,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:32:44,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:32:44,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:32:44,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:32:44,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:32:44,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:32:44,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:32:44,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:32:44,602 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 14:32:44,607 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 14:32:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:32:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:32:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:32:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:32:44,668 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:32:44,669 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:32:44,781 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:32:44,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:32:44,785 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 14:32:44,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:32:44 BoogieIcfgContainer [2022-01-10 14:32:44,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:32:44,787 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:32:44,787 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:32:44,788 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:32:44,790 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:32:44" (1/1) ... [2022-01-10 14:32:44,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:32:44 BasicIcfg [2022-01-10 14:32:44,853 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:32:44,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:32:44,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:32:44,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:32:44,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:32:44" (1/4) ... [2022-01-10 14:32:44,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cb2bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:32:44, skipping insertion in model container [2022-01-10 14:32:44,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:32:44" (2/4) ... [2022-01-10 14:32:44,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cb2bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:32:44, skipping insertion in model container [2022-01-10 14:32:44,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:32:44" (3/4) ... [2022-01-10 14:32:44,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cb2bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:32:44, skipping insertion in model container [2022-01-10 14:32:44,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:32:44" (4/4) ... [2022-01-10 14:32:44,861 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_natnum.cTransformedIcfg [2022-01-10 14:32:44,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:32:44,865 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 14:32:44,918 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:32:44,922 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 14:32:44,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 14:32:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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 14:32:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 14:32:44,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:32:44,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 14:32:44,936 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:32:44,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:32:44,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1775995463, now seen corresponding path program 1 times [2022-01-10 14:32:44,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:32:44,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544177797] [2022-01-10 14:32:44,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:32:44,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:32:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:32:45,079 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 14:32:45,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:32:45,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544177797] [2022-01-10 14:32:45,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544177797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:32:45,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:32:45,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:32:45,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362605899] [2022-01-10 14:32:45,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:32:45,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 14:32:45,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:32:45,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 14:32:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:32:45,111 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 14:32:45,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:32:45,120 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-01-10 14:32:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 14:32:45,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-01-10 14:32:45,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:32:45,130 INFO L225 Difference]: With dead ends: 19 [2022-01-10 14:32:45,130 INFO L226 Difference]: Without dead ends: 7 [2022-01-10 14:32:45,132 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 14:32:45,136 INFO L933 BasicCegarLoop]: 11 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, 11 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 14:32:45,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:32:45,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-01-10 14:32:45,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-01-10 14:32:45,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 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 14:32:45,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-01-10 14:32:45,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2022-01-10 14:32:45,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:32:45,162 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-01-10 14:32:45,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 14:32:45,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-01-10 14:32:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 14:32:45,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:32:45,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 14:32:45,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:32:45,164 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:32:45,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:32:45,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1776025254, now seen corresponding path program 1 times [2022-01-10 14:32:45,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:32:45,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326446026] [2022-01-10 14:32:45,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:32:45,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:32:45,194 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:32:45,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197302574] [2022-01-10 14:32:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:32:45,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:32:45,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:32:45,196 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 14:32:45,197 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 14:32:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:32:45,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 14:32:45,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:32:45,305 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 14:32:45,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 14:32:45,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:32:45,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326446026] [2022-01-10 14:32:45,306 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 14:32:45,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197302574] [2022-01-10 14:32:45,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197302574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:32:45,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:32:45,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:32:45,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549680636] [2022-01-10 14:32:45,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:32:45,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:32:45,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:32:45,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:32:45,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:32:45,308 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 14:32:47,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 14:32:47,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:32:47,331 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-01-10 14:32:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:32:47,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-01-10 14:32:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:32:47,470 INFO L225 Difference]: With dead ends: 12 [2022-01-10 14:32:47,470 INFO L226 Difference]: Without dead ends: 8 [2022-01-10 14:32:47,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:32:47,472 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:32:47,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-01-10 14:32:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-01-10 14:32:47,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-01-10 14:32:47,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 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 14:32:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-01-10 14:32:47,474 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2022-01-10 14:32:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:32:47,475 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-01-10 14:32:47,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 14:32:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-01-10 14:32:47,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 14:32:47,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:32:47,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:32:47,507 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 14:32:47,675 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 [2022-01-10 14:32:47,676 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:32:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:32:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash -776929020, now seen corresponding path program 1 times [2022-01-10 14:32:47,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:32:47,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523975423] [2022-01-10 14:32:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:32:47,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:32:47,701 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 14:32:47,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690596978] [2022-01-10 14:32:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:32:47,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:32:47,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:32:47,704 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 14:32:47,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process